Dispensing valve

Abstract

The present invention relates to a dispensing device (1) for measuring, storing, and dispensing fluids with precision across various applications. The device comprises a container (120) defining an interior volume for storing fluid, including a deformable body (100) with a metering volume that is adjustable when operated in conjunction with a further device (180). At least one outlet valve (130) enables unidirectional fluid flow to an external environment when the deformable body (100) is compressed, thereby dispensing a controlled volume of fluid. Additionally, at least one inlet valve (140) allows unidirectional fluid entry into the interior volume when the deformable body (100) reverts to its original shape or when fluid is introduced under applied pressure. The device ensures controlled and reliable fluid management while accommodating various fluid types and operational conditions.

Description

[0001] Dispensing valve

[0002] Technical field

[0003] The present disclosure relates to dispensing devices, configured for measuring, storing, and / or dispensing fluids.

[0004] Background

[0005] Precise and controlled dispensing of fluids is a critical requirement in various industries, including household cleaning, personal care, pharmaceuticals, food processing, paints, and adhesives. Many liquid-based products require accurate dosing to ensure effectiveness while minimizing waste. However, achieving consistent and repeatable fluid dispensing remains a challenge, particularly in manual consumer and industrial applications. Inaccurate dosing can lead to excessive product use, increased costs, and environmental impact due to liquid waste and excessive packaging.

[0006] Various dispensing mechanisms exist to address these challenges. Simple manual solutions, such as measuring caps or dosing cups, rely on user estimation, resulting in variations in the dispensed volume. Squeeze bottles with nozzle tips provide greater control by allowing liquid release through applied pressure but often lack precise dosing mechanisms, leading to inconsistencies. Some designs incorporate one-way valves or self-sealing features to prevent leakage and contamination; however, these solutions often introduce additional complexity or are optimized for specific fluid properties, limiting their adaptability across different applications.

[0007] To improve accuracy and ease of use, automated and semi-automated dispensing technologies have been developed, integrating mechanical actuators, pumps, or electronic sensors. While these systems enhance dosing precision, they increase costs, require external power sources, and introduce multiple components, affecting recyclability and manufacturing efficiency. Additionally, in applications where hygiene and contamination control are critical, dispensing mechanisms must be designed to prevent fluid exposure to external contaminants while maintaining ease of use.

[0008] The present disclosure encompasses multiple embodiments applicable across the previously mentioned industries. These embodiments include dosing cups for liquid medicines, dosing caps for laundry detergents, and dosing caps for paints and adhesives, among other dispensing solutions. Each embodiment benefits from an improved dispensing system that ensures precise dosing, prevents leakage, andenables contamination-free operation without requiring complex or power-driven components.

[0009] It is therefore an objective of the present disclosure to provide an enhanced dispensing solution that enables accurate and controlled fluid delivery, minimizes waste, improves user convenience, and remains adaptable to a wide range of fluid types and packaging configurations, while overcoming the limitations of existing dispensing technologies. Summary

[0010] The present disclosure relates to a dispensing device configured for measuring, storing, and / or dispensing fluids in a precise and controlled manner. Conventional fluid dispensing methods often suffer from inaccuracies, excess waste, and complexity, making them less efficient in applications where controlled dosing is required. Many existing solutions rely on manual estimation, complex mechanical components, or external power sources, leading to inconsistent fluid dispensation and potential contamination risks.

[0011] The disclosed dispensing device overcomes these challenges by incorporating a deformable body that defines an interior volume for storing fluid and is configured with a metering volume. The deformable body can be compressed to expel fluid through an outlet valve, ensuring precise and repeatable dosing. When compression is released, the deformable body may expand towards its original shape, creating a pressure differential that facilitates fluid intake through an inlet valve. Alternatively, fluid intake may be initiated by an external force or by pressure variations within the interior volume, ensuring adaptability for different dispensing environments. The metering volume is adjustable when the device is operated in conjunction with a further device, enabling customized dosing control.

[0012] By utilizing unidirectional inlet and outlet valves, the device ensures controlled fluid flow and prevents unintended leakage or contamination. The modular design allows for removable attachment to further devices, such as fluid storage containers or receiving systems, making it adaptable for a wide range of applications. The absence of external energy sources or complex actuation mechanisms improves reliability while reducing material waste and environmental impact.

[0013] Thus, in a first aspect, the present disclosure relates to a dispensing device (1) configured for measuring, storing, and / or dispensing fluids, the device comprising:• a container defining an interior volume for storing fluid, the container including a deformable body configured with a metering volume, wherein the metering volume is adjustable when the device is operated in conjunction with a further device; • at least one outlet valve configured to permit unidirectional fluid flow from the interior volume of the deformable body to an external environment, wherein compression of the deformable body expels a metered fluid volume through the outlet valve; and

[0014] • at least one inlet valve configured to permit unidirectional fluid flow into the interior volume of the deformable body, wherein the inlet valve is actuated in response to a pressure differential between the external environment and the interior volume, such that fluid enters when the deformable body expands towards its original shape or when an external force directs fluid into the interior volume.

[0015] In a further aspect, the present disclosure relates to a dispensing system (10) comprising a plurality of the fluid dispensing devices (1), wherein the fluid dispensing devices (1) are attached to each other. The system may be arranged in parallel or in series to accommodate various operational requirements, and the dispensing devices (1) may be configured to handle fluids of the same and / or different types.

[0016] Brief Description of Figures

[0017] The figures provided herein illustrate various non-limiting embodiments of the present disclosure and are presented to aid in the understanding of the present disclosure. The specific configurations, orientations, and proportions depicted are exemplary and should not be construed as limiting the scope of the disclosure. Variations, modifications, and alternative embodiments may be employed without departing from the principles set forth in the present application.

[0018] Fig. 1 shows a perspective view of a dispensing device (1), including a container (120) with a deformable body (100) for fluid storage and metering, along with an inlet valve (140) and an outlet valve (130).

[0019] Fig. 2 presents a side view of the dispensing device (1), with dashed lines indicating hidden edges, illustrating the container (120), deformable body (100), inlet valve (140), and outlet valve (130).

[0020] Fig. 3 illustrates a rigid body (110) incorporating both an inlet valve (140) and an outlet valve (130), showing an embodiment where both valves are integrated into a single rigid structure.Fig. 4 depicts a rigid body (110) configured to accommodate either an inlet valve (140) or an outlet valve (130), depending on its assembly with a container (120) housing a deformable body (100).

[0021] Fig. 5 provides a side view of a rigid body (110) with an inlet valve (140) in the form of a duckbill valve and a threaded engagement mechanism (170) for attachment to a fluid source.

[0022] Fig. 6 offers a perspective view of the rigid body (110) from Fig. 5, further detailing the inlet valve (140) and the threaded engagement mechanism (170).

[0023] Fig. 7 shows a perspective view of the dispensing device (1), illustrating the container (120) with a deformable body (100) in an accordion-like configuration and a threaded engagement mechanism (170).

[0024] Fig. 8 presents a cut-away view of the dispensing device (1), exposing internal components such as the container (120), deformable body (100), and a threaded engagement mechanism (170).

[0025] Fig. 9 illustrates the dispensing device (1) functioning as a cap mounted on a further device (180), with a deformable body (100) and valves (130, 140) for fluid metering. Fig. 10 shows a dispensing device (1) with a funnel-shaped deformable body (100), which also serves as the container (120), and a membrane-based outlet valve (130), with hidden edges displayed.

[0026] Fig. 11 provides a perspective view of the funnel-shaped membrane (160), with hidden edges shown, demonstrating its potential integration into an outlet valve (130) for controlled fluid dispensing.

[0027] Detailed description

[0028] In a first aspect, the present disclosure relates to a dispensing device (1) configured for measuring, storing, and / or dispensing fluids. The device may include a container (120) defining an interior volume for storing fluid, allowing for controlled fluid management to ensure accurate and repeatable dispensing operations. The container (120) may be adapted to accommodate various fluid types, including but not limited to gases, liquids, gels, suspensions, emulsions, other flowable substances, and / or mixtures thereof. The structure of the container (120) may be designed according to different application requirements and may incorporate materials that provide flexibility, durability, or chemical resistance depending on the intended use.The container (120) may include a deformable body (100) configured with a metering volume, which in some embodiments may be adjustable when the device is operated in conjunction with a further device (180). The metering volume may also vary dynamically based on external operating conditions or interactions with additional components. Such an arrangement may facilitate precise control over the amount of fluid dispensed, which may be beneficial in applications requiring dosing accuracy, including pharmaceutical dispensing, chemical mixing, or consumer product applications such as detergents and personal care formulations. The deformable body (100) may be made from a material that exhibits a balance between elasticity and durability, allowing for repeated compression and re-expansion without significant degradation. In some implementations, the deformable body (100) may incorporate structural reinforcements, such as integrated bellows, which may improve its ability to return to its original shape after deformation while maintaining a defined metering volume.

[0029] The device may further comprise at least one outlet valve (130) configured to permit unidirectional fluid flow from the interior volume of the deformable body (100) to an external environment. The outlet valve (130) may be structured to open when the pressure within the interior volume exceeds that of the external environment, thereby ensuring controlled fluid release. This arrangement may help prevent unintended leakage and may allow for precise dispensing by ensuring that fluid flow occurs only when the deformable body (100) is actively compressed. The volume of fluid dispensed may correspond to the degree of compression applied, wherein partial compression may result in proportional fluid release, while full compression may expel the entire metering volume. In some embodiments, the outlet valve (130) may be implemented as a capillary valve, a check valve, or a membrane-based valve, depending on the viscosity and characteristics of the fluid being dispensed. The unidirectional nature of the outlet valve (130) may further contribute to maintaining fluid purity by preventing the ingress of external contaminants and backflow into the interior volume.

[0030] At least one inlet valve (140) can also be provided to allow unidirectional fluid flow into the interior volume of the deformable body. The inlet valve (140) may be configured to operate when the deformable body (100) reverts to its original shape, creating a pressure differential that draws fluid into the interior volume. In some embodiments, the inlet valve (140) can also facilitate fluid intake when the interior volume is subjected to an external pressure source. In some embodiments, the inlet valve (140) can also facilitate fluid intake when there is a pressure differential in the interior volume, whichcan for example be caused by agitation, e.g. when gas, such as air, is present in the interior volume. The design of the inlet valve (140) can vary based on application needs and fluid properties and may include a variety of valve types such as check valves, duckbill valves, or membrane-sealed valves. The unidirectional nature of the inlet valve (140) can ensure that fluid only enters the container (120) when required, preventing backflow and contamination.

[0031] In one embodiment, the deformable body (100) is resilient, such that upon removal of an external force, it is arranged to expand towards its original shape. The resilience of the deformable body (100) may facilitate fluid intake by generating a pressure differential within the interior volume, thereby drawing fluid through the inlet valve (140) when the external environment is at a higher pressure. The degree of resilience may be influenced by material selection, thickness, and structural reinforcements, allowing for repeated deformation and recovery without significant loss of functionality. In some implementations, the deformable body (100) may enhance dosing precision by ensuring that the metering volume resets after each dispensing cycle, thereby maintaining consistent operation across multiple uses.

[0032] Measuring, as used herein, refers to determining or controlling the volume of fluid, for example within the dispensing device (1). This includes, but is not limited to, assessing the quantity of fluid stored, dispensed, or transferred. The measurement may be applied across various volume ranges, including nanoliters (nL), microliters (pL), milliliters (mL), centiliters (cL), deciliters (dL), and liters (L), depending on the application.

[0033] Storing, as used herein, refers to the retention of a fluid within the interior volume of the container (120). This may be done for subsequent dispensing, measuring, or transfer. The storage duration may vary, including short-term, intermediate-term, or long-term periods, depending on the intended use of the device. In some embodiments, the inlet and outlet valves (130) remain closed during storage to prevent unintended leakage, contamination, or evaporation of the fluid.

[0034] Dispensing, as used herein, refers to the controlled release of fluid from the container (120). For example to an external environment. The external environment, as used herein, refers to any space, surface, or system outside the interior volume of the container (120) where the fluid is dispensed, such as open air, a receiving surface, another container (120), or a connected system. Dispensing may occur continuously or discretely, including single-dose, metered, or variable-volume dispensing. The fluidmay be dispensed through manual actuation, automated mechanisms, or in response to external forces such as pressure, suction, or centrifugal force. Factors such as fluid viscosity, flow resistance, and outlet valve (130) configuration may influence the dispensing process to ensure controlled and precise release.

[0035] Container (120), as used herein, refers to a structure defining an interior volume for holding a fluid. A container (120) can have at least a portion that is resilient and compressible to facilitate fluid dispensing. The container (120) may be formed from flexible, semi-rigid, or rigid materials, including elastomers, polymers, or composite materials, depending on the intended application. In some embodiments, the container (120) comprises rigid bodies for structural support, while other portions remain resilient and compressible for simple fluid intake and dispensing. The container (120) may also include reinforcing elements, collapsible sections, or graduated markings to facilitate controlled measurement and dispensing. Additionally, the container (120) may be sealed to prevent contamination, evaporation, or leakage, with unidirectional inlet and outlet valves (130) regulating fluid flow.

[0036] Resilient, as used herein, refers to the ability to return to an original or pre-deformed shape after being compressed or deformed. Resilience may be achieved through elastic deformation, where the material temporarily changes shape under an applied force and subsequently reverts upon force removal. The resilience of a structure may depend on material composition, thickness, elasticity, and structural design. In some embodiments, the resilient portion of the device is made from elastomers, flexible polymers, or other materials with high elastic recovery, allowing repeated compression cycles without significant loss of integrity. The resilience of the material contributes to controlled compression and re-expansion, facilitating precise fluid intake and dispensing.

[0037] Deformable, as used herein, refers to the capability of undergoing a change in shape, structure, or configuration when subjected to an external force, without necessarily requiring a reduction in volume. In some cases, the object may revert, at least partially, to its original shape upon removal of the force, depending on its material properties and structural design. The deformability of a structure may be influenced by factors such as material composition, thickness, elasticity, flexibility, and the presence of reinforcements or support structures. In some embodiments, deformation may occur through bending, stretching, compression, or localized displacement, allowing the dispensing device (1) to accommodate varying operational requirements. The extent ofdeformability may be designed to facilitate controlled fluid intake and release, wherein the deformation characteristics contribute to regulating pressure differentials within the interior volume of the container (120). The ability of the deformable body (100) to respond to external forces may enable various actuation methods, including manual pressure, mechanical interaction, centrifugal force, or pressure fluctuations, thereby enhancing its adaptability across different dispensing environments. Compressible, as used herein, refers to the capability of undergoing a reduction in volume or shape when subjected to an external force.

[0038] Adjustable, as used herein, refers to the capability of being varied, modified, or controlled to alter the metering volume or another functional parameter. Adjustability may be achieved through mechanical, electronic, or manual means, allowing for precise control over dispensing based on user requirements or system conditions. In some embodiments, adjustability may be facilitated by external control mechanisms, such as mechanical stops, threaded adjustments, electronic actuators, or movable barriers, that interact with the dispensing device (1). Additionally, adjustments may be automated based on feedback from sensors or external control systems to optimize performance in response to fluid viscosity, temperature, or pressure conditions.

[0039] In one embodiment of the present disclosure, the inlet valve (140) and the outlet valves (130) of the dispensing device (1) may be configured as normally closed (NC) valves. A normally closed valve is a type of valve that remains in a sealed state when no external force or pressure is applied, preventing the unintended flow of fluid. The valve only opens in response to a specified pressure differential, mechanical actuation, or another triggering mechanism, allowing controlled dispensing of the fluid.

[0040] This configuration may enhance the reliability of the dispensing device (1) by ensuring that fluid remains contained within the container (120) until an intended dispensing action occurs. By defaulting to a closed position, the valves may prevent leaks, evaporation, or contamination of the stored fluid, making the device suitable for applications where controlled dispensing is essential. This feature may be particularly beneficial in fields such as pharmaceuticals, laboratory applications, or consumer goods, where maintaining precise dosing and fluid integrity is important.

[0041] The normally closed valves may be designed to open in response to various activation mechanisms. For instance, the inlet and outlet valves (130) may open when the deformable body (100) is compressed, generating an internal pressure that exceeds the opening threshold of the valves. In other embodiments, the valves may be actuatedby an external force, such as a mechanical actuator or pneumatic pressure.

[0042] Additionally, they may be constructed using different mechanisms, including spring-loaded check valves, diaphragm valves, or elastomeric membranes, to regulate fluid flow based on specific operational requirements. This versatility may allow the dispensing device (1) to function effectively in both manual and automated dispensing systems (10), ensuring precise and controlled fluid delivery while minimizing waste and unintended discharge.

[0043] In some embodiments, the inlet valve (140) and / or the outlet valve (130) is independently selected from the group consisting of capillary valves, ball valves, flap valves, diaphragm valves, spring-loaded check valves, pinch valves, lift check valves, reed valves, umbrella valves, and / or duckbill valves. Each type of valve may provide specific functional benefits, depending on the intended use of the dispensing device (1).

[0044] Capillary valves may be used to regulate fluid flow by relying on surface tension and capillary action, making them suitable for dispensing small fluid volumes with high precision. Ball valves, on the other hand, may offer robust sealing properties and may be actuated by pressure changes or mechanical force. Flap valves and diaphragm valves may provide flexible and low-force activation, making them advantageous for use with low-viscosity or shear-sensitive fluids.

[0045] The performance of a capillary valve may be influenced by fluid viscosity, as viscosity affects both the flow resistance and the ability of the capillary forces to retain the fluid within the valve. Higher viscosity fluids, such as gels, oils, or viscous pharmaceutical formulations, may exhibit stronger resistance to flow, requiring a greater external force to overcome capillary retention. In some embodiments, the valve dimensions, such as the diameter of the capillary channel or the surface properties of the valve material, may be adjusted to accommodate fluids of varying viscosities.

[0046] Conversely, lower viscosity fluids, such as water or alcohol-based solutions, may exhibit weaker resistance to flow and may pass through the capillary valve more easily. In some embodiments, the capillary valve may be designed with smaller aperture sizes or hydrophobic coatings to increase the retention force and prevent premature leakage. Additionally, the interaction between the fluid’s surface tension and the valve’s material properties may be optimized to ensure precise control over fluid retention and release. In some embodiments, the capillary valve may be configured to operate across a range of viscosities by adjusting its geometric design, surface treatment, or integration with anauxiliary pressure-regulation mechanism that compensates for variations in flow resistance. The capillary valve may also be designed to work in conjunction with other valve types or fluid control elements to provide consistent dispensing performance regardless of fluid viscosity.

[0047] Various types of valves may be used in the dispensing device (1) to regulate fluid flow, each offering different functional advantages depending on the application. A ball valve may include a spherical or semi-spherical component that rotates within a valve housing. The ball may have an aperture that aligns with the fluid passage when in the open position, allowing fluid to flow, and may block the passage when rotated away from alignment, thereby closing the valve. Ball valves may provide a reliable sealing mechanism and may be actuated manually, mechanically, or in response to pressure changes.

[0048] A flap valve may include a flexible or rigid flap positioned over the valve aperture. The flap may be designed to open when sufficient fluid pressure is applied and to close when the pressure is reduced. This type of valve may allow unidirectional fluid flow and help prevent backflow into the container (120), making it suitable for applications requiring simple, passive flow control.

[0049] A diaphragm valve may include a flexible diaphragm that deforms in response to pressure differences across the valve. The diaphragm may create a seal when in its default position and may open to allow fluid flow when an external force, such as mechanical actuation or increased internal pressure, is applied. This type of valve may be beneficial for regulating flow in response to precise pressure conditions.

[0050] A spring-loaded check valve may include a movable sealing element biased by a spring, which maintains the valve in a normally closed position. When the pressure surpasses a predetermined threshold, the sealing element may move against the spring force, allowing fluid to pass through. Upon removal of the pressure, the spring may return the sealing element to its closed position. This configuration may be useful in applications requiring controlled opening pressure and reliable closure.

[0051] A lift check valve may include a movable disc or piston that lifts from its seat when fluid pressure is applied in one direction, allowing fluid flow. When pressure decreases or is applied in the opposite direction, the disc or piston may return to its seat, preventing backflow. Lift check valves may be effective in applications that require consistent unidirectional fluid control.A reed valve may comprise a thin, flexible strip that covers an aperture and is configured to lift away when fluid pressure reaches a threshold, allowing fluid to pass through. Once the pressure decreases, the strip may return to its original position, closing the valve. Reed valves may be advantageous in applications requiring quick response to pressure fluctuations.

[0052] An umbrella valve may include a flexible, dome-shaped membrane that covers the valve aperture. The membrane may lift in response to fluid pressure, allowing fluid to pass through, and return to its original position when pressure decreases, thereby sealing the valve. This type of valve may offer low opening pressure and reliable sealing characteristics.

[0053] A duckbill valve may include a flexible, slit-like opening that remains closed in its default state and opens when sufficient pressure is applied. The duckbill valve may provide unidirectional flow and automatically prevent backflow without requiring additional components. The simple yet effective design may be particularly useful in applications where passive flow control is necessary.

[0054] By incorporating different types of valves, the dispensing device (1) may be tailored to specific operational requirements, such as controlled fluid metering, leak prevention, and automatic flow regulation. The selection of a valve type may depend on the fluid properties, desired actuation method, and environmental conditions, enabling the dispensing device (1) to function efficiently across various applications.

[0055] In one embodiment of the present disclosure, the dispensing device (1) may be configured such that the container (120) itself forms at least a portion of the inlet valve (140) and / or the outlet valve (130). One example is a device comprising an inlet valve (140) that may include a portion of the container (120) that is maintained in tension over an aperture, thereby acting as a sealing mechanism. Under default conditions, this tensioned portion may remain closed, preventing unintended ingress or egress of fluid. When the pressure within the container (120) is lower than the external environment, the inlet valve (140) may deform to allow fluid to enter.

[0056] The outlet valve (130) may be implemented as any type of valve, for example a capillary valve, regulating fluid flow based on capillary forces. In this configuration, the outlet valve (130) may allow fluid to exit only when an external force, such as compression of the deformable body (100), is applied. Without such force, surface tension within the capillary structure may retain the fluid, preventing unintendeddispensing. This configuration may be beneficial in preventing leaks and ensuring precise fluid release.

[0057] By forming the inlet and outlet valves (140, 130) as integrated elements of the container (120), the dispensing device (1) may reduce the need for separate valve components, simplifying manufacturing and assembly. The integrated valve structure may enhance sealing performance and durability by minimizing mechanical interfaces that could otherwise degrade over time. Additionally, utilizing capillary forces for fluid control may provide a passive and reliable sealing mechanism without requiring additional actuators or moving parts.

[0058] In one embodiment of the present disclosure, the dispensing device (1) may be configured to be repeatedly removably attachable to a further device (180), such as a container (120). This configuration may allow for the dispensing device (1 ) to be used in conjunction with different fluid storage or dispensing systems (10), facilitating reusability and modular functionality. The removable attachment may be achieved through mechanical means, such as threaded connections, snap-fit mechanisms, clamps, magnetic couplings, or bayonet fittings, enabling secure yet detachable engagement.

[0059] By allowing repeated attachment and detachment, the dispensing device (1) may provide versatility in applications requiring interchangeable or replaceable fluid storage systems. For example, a user may detach the dispensing device (1) from an empty fluid storage unit and reattach it to a new one without the need for specialized tools or complex assembly. This may enhance ease of use while reducing material waste by allowing the dispensing component to be reused multiple times. Additionally, the repeatable removability of the device may facilitate cleaning, maintenance, or sterilization procedures, particularly in applications involving pharmaceuticals, laboratory fluids, or food-grade substances.

[0060] In some embodiments, the fluid dispensing device (1) may include an inlet engagement mechanism configured to attach the dispensing device (1 ) to a further device (180), such as a fluid storage device. The inlet engagement mechanism may be arranged to provide a stable connection while allowing for secure fluid transfer from the further device (180) into the interior volume of the deformable body (100). The engagement mechanism may comprise mechanical connectors, such as threaded couplings, quickrelease latches, or friction-fit elements. Alternatively, the engagement mechanism mayinclude sealing components, such as gaskets, O-rings, or valve interfaces, to ensure a leak-proof connection.

[0061] By incorporating an inlet engagement mechanism, the dispensing device (1) may be adapted for integration with various fluid storage units, ranging from refillable containers (120) to disposable cartridges. The mechanism may be designed to ensure proper alignment between the inlet valve (140) and the corresponding outlet of the fluid storage device, optimizing fluid transfer efficiency. Furthermore, in some configurations, the engagement mechanism may be designed to prevent accidental detachment or leakage by incorporating locking features or pressure-activated seals that engage upon connection. This configuration may enhance reliability and usability, particularly in environments where precise fluid control is essential, such as in medical applications, laboratory settings, or industrial fluid management.

[0062] In one embodiment of the present disclosure, the inlet engagement mechanism may be configured to removably attach the fluid dispensing device (1) to a further device (180) and to simultaneously establish a sealed fluidic connection between the interior volume of the deformable body (100) and the further device (180), through the inlet valve (140). This configuration may allow for controlled fluid transfer from the further device (180) into the dispensing device (1) without leakage or contamination. The removable attachment may be achieved using mechanical connectors, such as threaded fittings, snap-fit interfaces, or magnetic couplings, which may ensure secure yet easily detachable engagement.

[0063] The sealing function of the inlet engagement mechanism may be enhanced by incorporating sealing elements, such as elastomeric gaskets, O-rings, or valve interfaces, to prevent unintended fluid escape during attachment or detachment. In some implementations, the mechanism may include self-sealing or pressure-activated components that automatically engage upon connection, ensuring a reliable and airtight interface. The inlet engagement mechanism may also be designed to align precisely with the inlet valve (140) to optimize fluid flow efficiency and minimize residual fluid retention, which may be particularly beneficial in applications where precise dosing or contamination prevention is necessary.

[0064] In one embodiment, the fluid dispensing device (1) may comprise an outlet engagement mechanism configured to attach the dispensing device (1) to a further device (180), such as a fluid receiving device. This configuration may enable the dispensing device (1) to be operably connected to different types of fluid collectionsystems, including reservoirs, tubes, applicators, or dispensing nozzles. The outlet engagement mechanism may facilitate controlled fluid release while maintaining a secure and sealed connection between the dispensing device (1) and the receiving device.

[0065] In some embodiments, the outlet engagement mechanism may be configured to removably attach the fluid dispensing device (1) to the further device (180) and simultaneously establish a sealed fluidic connection between the interior volume of the deformable body (100) and the further device (180), through the outlet valve (130). This may ensure that the fluid dispensed from the device is directed precisely to the intended receiving system without leakage or spillage. The engagement mechanism may employ a variety of attachment methods, such as quick-connect couplings, bayonet mounts, or flexible tubing interfaces, depending on the application.

[0066] To enhance sealing effectiveness, the outlet engagement mechanism may incorporate sealing features similar to those found in the inlet engagement mechanism, such as O-rings, pressure-sensitive seals, or check valves that prevent backflow. In some implementations, the mechanism may be designed to automatically align with the outlet valve (130) upon attachment, ensuring efficient fluid transfer and consistent dispensing performance. This configuration may be particularly useful in applications where the dispensing device (1) is frequently connected and disconnected from different fluid delivery systems, such as in industrial fluid management, medical dosing systems, or precision liquid handling applications.

[0067] The deformable body (100) may comprise a self-restoring elastically deformable structure (101) capable of returning to its original shape after compression. As such, the deformable body (100) may be resilient. This characteristic may allow the dispensing device (1) to operate efficiently across multiple compression cycles, ensuring consistent fluid dispensing without structural degradation. The self-restoring property may be achieved through the selection of suitable materials and / or geometric configurations that enable elastic recovery after deformation. In some embodiments, the resilient deformable body (100) may exhibit high durability, maintaining its ability to revert to its original shape even after prolonged use.

[0068] To enhance its self-restoring capability, the deformable body (100) may be configured as a bellow, an accordion-like configuration, a spring-assisted mechanism, or an elastomeric membrane. A bellow structure may provide a concertina-like movement, allowing repeated compression and expansion while maintaining fluid integrity. Anaccordion-like configuration may function similarly, providing controlled deformation with predictable recovery characteristics. A spring-assisted mechanism may incorporate an internal or external spring element that reinforces the deformable body’s ability to return to its pre-compressed state, making it particularly useful in applications requiring rapid actuation and reset. An elastomeric membrane may offer flexibility and resilience, adapting to various pressure conditions while preventing leakage or uncontrolled expansion.

[0069] The choice of configuration may depend on the desired dispensing characteristics, such as the level of force required for compression, the speed of recovery, and the expected durability of the device. In some implementations, a combination of these configurations may be employed to optimize performance. For example, a bellow structure may be reinforced with an elastomeric membrane to improve flexibility while maintaining structural integrity. Similarly, a spring-assisted mechanism may be used in conjunction with an accordion-like design to enhance responsiveness and longevity. The deformable body (100) may be configured to revert to its original shape upon release of a compressive force applied to it. This reversion may occur due to the material properties of the deformable body, such as elasticity, or due to additional structural features designed to facilitate recovery. The ability to return to its original shape may ensure that the device can consistently draw in and dispense fluids over multiple cycles without permanent deformation. This functionality may be particularly beneficial in applications where precise and repeatable fluid dispensing is required. In some embodiments, the reversion of the deformable body (100) may be influenced by external factors such as ambient temperature, material fatigue, or exposure to different fluid viscosities. Certain materials or structural reinforcements may be selected to enhance the longevity and resilience of the deformable body. For example, a highly elastic material may be used to maximize recovery speed, while a reinforced structural design may be implemented to maintain dimensional stability over extended use.

[0070] The deformable body (100) may be composed of a flexible material, including but not limited to silicone, low-density polyethylene (LDPE), polyethylene terephthalate (PET), thermoplastic elastomers, or natural rubbers. These materials may provide the necessary balance of flexibility and durability to support repeated compression and reexpansion cycles. The selection of material may also depend on compatibility withdifferent fluid types, resistance to degradation, and the ability to maintain a consistent shape and function under varying environmental conditions.

[0071] For example, silicone may be chosen for its high elasticity and resistance to temperature variations, making it suitable for medical or industrial applications. LDPE may provide a cost-effective and chemically resistant option for use with various liquid formulations. PET may be used where greater structural rigidity is required, while thermoplastic elastomers and natural rubbers may offer enhanced flexibility and resilience for repeated actuation. In some embodiments, composite materials or multilayered structures may be employed to combine the benefits of different materials, such as reinforcing a flexible elastomer with a more rigid outer layer to improve durability.

[0072] The deformable body (100) may be configured to be compressed, thereby dispensing the metering volume, under various forces and pressure conditions. The compression may be initiated through different means, allowing the device to function in a range of environments and applications.

[0073] The deformable body (100) may be configured to be compressed, thereby dispensing the metering volume, under various force and pressure conditions. These conditions may enable the device to function in different operational environments and facilitate precise fluid dispensing.

[0074] Alternatively, or additionally, the deformable body (100) may be actuated by an axial compression force, which refers to a force applied in a direction substantially aligned with the primary compression axis of the deformable body (100). This force may be exerted by direct manual interaction, mechanical actuation, or automated systems. The magnitude of the axial compression force may range from 0.1 N to 5000 N, such as from 5 N to 1000 N, or from 1 N to 500 N, depending on the material properties of the body, the viscosity of the fluid, and the intended actuation method. Axial compression may occur when a user squeezes the container (120) along its intended compression axis, such as pressing opposing surfaces together, or when an external device applies a controlled compressive load.

[0075] Alternatively, or additionally, the dispensing device (1) may be actuated by centrifugal force acting on the deformable body (100) during rotation. Centrifugal force is the apparent outward force experienced by an object moving in a circular path due to its inertia. When the dispensing device (1) is subjected to rotational motion, such as in a centrifuge or rotating dispensing system (10), the deformable body may experienceoutward-directed forces that can cause its deformation and fluid expulsion. The centrifugal force acting on the body may range from 100 N to 250 kN, such as from 1 kN to 100 kN, or from 10 kN to 50 kN, depending on the rotational speed and the mass of the system.

[0076] Alternatively, or additionally, the dispensing device (1) may be actuated by a positive pressure difference between the external environment and the interior volume of the deformable body. A positive pressure difference refers to a condition where the pressure applied externally to the deformable body (100) is higher than the internal pressure of the container (120), causing the body to collapse and expel fluid. This pressure difference may arise from environmental conditions, mechanical pressurization, or fluid dynamics within a system. The positive pressure difference may range from 2 mbar to 200 bar, such as from 20 mbar to 20 bar, or from 200 mbar to 2 bar. The outlet valve (130) may be configured to prevent backpressure from restricting fluid flow, ensuring that fluid is dispensed effectively under positive pressure conditions. Alternatively, or additionally, the dispensing device (1) may be actuated by a negative pressure difference between the external environment and the interior volume of the deformable body. A negative pressure difference refers to a condition where the internal pressure of the deformable body is lower than the external pressure, creating a vacuum effect that causes the body to collapse, thereby forcing fluid out through the outlet valve (130). This vacuum-driven mechanism may be advantageous in applications where controlled dispensing is required without external compression. The negative pressure difference may range from -2 mbar to -200 bar, such as from -20 mbar to -20 bar, or from -200 mbar to -2 bar.

[0077] By allowing the deformable body (100) to be actuated under different force and pressure conditions, the dispensing device (1) may be adapted for diverse applications, ranging from manual squeeze dispensers to automated pressure-based or centrifuge-assisted dispensing systems (10). The range of forces and pressures may be optimized to suit different operational needs, fluid properties, and user requirements, ensuring precise and reliable fluid dispensing. In some embodiments, the dispensing device (1) may be formed in a size, shape, and material suitable for integration with a product, item of equipment, or machine, for example as a closure, cartridge, or module that is fluidly connected to a container (120) and / or to the deformable body (100). The dispensing device (1) may be dimensioned in accordance with the intended installation environment, for instance from compact hand-held formats to larger devices configuredto interface with processing equipment or machinery, and may have an external geometry adapted to correspond to the surrounding housing or to a connected dosing chamber.

[0078] The dispensing device (1) may be manufactured from polymeric and / or elastomeric materials, for example from one or more of silicone, low-density polyethylene (LDPE), polyethylene terephthalate (PET), thermoplastic elastomers, or natural or synthetic rubbers, optionally in combination with further structural components selected to provide desired mechanical strength, barrier properties, or chemical compatibility. When employed as a component within a machine or apparatus, the dispensing device (1) may be configured such that its dimensions, material properties, and geometric profile correspond to the machine housing and / or to an associated dosing chamber, thereby facilitating secure mounting and reliable fluid communication. The arrangement of one or more internal one-way valves in the dispensing device (1 ), including the inlet valve (140) and any outlet valve (130), is configured to permit unidirectional flow through the system and to limit or prevent backflow and unintended leakage, thereby contributing to the maintenance of a fluid-tight and airtight condition of the dispensing device (1) and associated container (120) in accordance with product requirements. In one embodiment of the present disclosure, the dispensing device (1) may include an elastic membrane (160) in the inlet valve (140) and / or the outlet valve (130), covering the aperture of the valve. The elastic membrane (160) may serve as a flexible sealing element that responds to pressure differentials, enabling controlled unidirectional fluid flow. The membrane may be in a default closed state, preventing the unintended escape of fluid, and may deform under an applied pressure to allow fluid passage. By incorporating an elastic membrane (160), the dispensing device (1) may achieve a passive sealing mechanism that does not require additional mechanical components for actuation.

[0079] In one embodiment of the present disclosure, the elastic membrane (160) may be composed of very low-density polyethylene (VLDPE), ultra-low-density polyethylene (ULDPE), latex, silicone, natural rubber, synthetic rubber, or thermoplastic elastomer (TPE). These materials may be selected based on their flexibility, durability, and compatibility with various fluids. For example, silicone may be particularly suitable for applications requiring resistance to environmental degradation, while latex or synthetic rubber may provide high elasticity and rapid response to pressure variations. Thematerial selection may also depend on factors such as fluid viscosity, temperature range, and exposure to chemical agents that could affect long-term performance.

[0080] In one embodiment of the present disclosure, the thickness of the elastic membrane (160) may be designed to optimize its functionality. The membrane may have a wall thickness of at least 0.01 mm, such as at least 0.05 mm, such as at least 0.1 mm. A thinner membrane may respond more readily to small pressure changes, enabling precise fluid control, while a thicker membrane may provide additional structural integrity and resistance to mechanical wear. The thickness may be adapted to the specific operational conditions of the dispensing device (1), such as the pressure range under which the valve is expected to function and the type of fluid being dispensed. The use of an elastic membrane (160) in the dispensing device (1) may offer multiple advantages, including enhanced reliability, reduced manufacturing complexity, and improved sealing performance. The membrane may be integrated into different valve configurations, such as umbrella valves, duckbill valves, or diaphragm-based sealing mechanisms, allowing for versatility in implementation. Additionally, the elastic membrane (160) may contribute to the device’s ability to maintain a sealed state when not in operation, thereby preventing contamination, evaporation, or unintended leakage of the stored fluid.

[0081] In one embodiment of the present disclosure, the dispensing device (1) may be fluid-tight when not activated. This configuration may ensure that no fluid is unintentionally dispensed when the device is in a resting or storage state. The fluid-tight nature of the device may be achieved through various sealing mechanisms, such as normally closed valves, elastic membranes (160), or capillary sealing elements that prevent fluid egress in the absence of an external actuation force. The fluid-tight configuration may be particularly beneficial in applications requiring controlled dosing, transportation of liquids without leakage, or maintaining fluid integrity before dispensing.

[0082] In one embodiment of the present disclosure, the dispensing device (1) may be configured to be airtight when in a non-operational state, such that no ingress or egress of air or contents within the container (120) occurs through the inlet or outlet valves (130). This airtight configuration may be achieved using sealing mechanisms such as normally closed valves, elastic membranes (160), or tight-fitting closure elements that prevent external air from entering the container (120). The airtight nature of the device may help preserve the quality of the stored fluid by preventing oxidation, contamination, or evaporation. For example, in pharmaceutical or cosmetic applications, preventing airexposure may maintain the stability and efficacy of active ingredients. Additionally, in food-grade applications, an airtight environment may prevent spoilage by limiting contact with external contaminants.

[0083] By maintaining a fluid-tight and airtight state when not in use, the dispensing device (1 ) may be adapted for use in environments where fluid loss, contamination, or air exposure could negatively impact performance or product quality. These features may also contribute to the longevity of the stored fluid and enhance the overall reliability of the dispensing system (10).

[0084] In one embodiment of the present disclosure, the dispensing device (1) may be configured to store the liquid for short-term and / or long-term durations, such as for immediate use, intermittent dispensing, or prolonged storage. The ability to store liquid within the container (120) may allow the device to function as both a storage and dispensing system (10), reducing the need for separate containers (120) for transport and application. The duration for which the fluid remains stored may vary depending on factors such as the type of liquid, the material properties of the container (120), and the presence of sealing mechanisms that prevent evaporation, contamination, or degradation of the stored fluid.

[0085] For short-term storage, the device may be used for immediate dispensing applications, such as single-use or daily use scenarios, where a user may store a limited amount of fluid for quick access. In contrast, for long-term storage, the device may be designed to hold fluids for extended periods, ensuring stability and preventing unintended leakage. This may be particularly useful in applications where precise dosing is required over time, such as pharmaceutical dispensers, industrial lubricants, or cosmetic formulations. In some embodiments, the device may include features that allow monitoring of the stored volume, such as transparent sections or volume indicators, facilitating controlled dispensing based on storage duration.

[0086] In one embodiment of the present disclosure, the metering volume may be within the range of from 0.5 ml to 1000 ml, such as from 1 ml to 750 ml, such as from 2.5 ml to 500 ml, such as from 5 ml to 250 ml. This range may accommodate a variety of applications, allowing for precise control over the amount of fluid dispensed per actuation. Smaller metering volumes, such as those in the range of microliters or milliliters, may be particularly suitable for applications requiring highly controlled dosing, such as pharmaceutical or laboratory environments. Larger metering volumes,on the other hand, may be beneficial in applications such as food and beverage dispensing, cleaning solutions, or industrial fluid distribution.

[0087] The flexibility in metering volume may allow the device to be adapted to different user needs, ensuring that a predetermined quantity of fluid is delivered with each actuation. The ability to control the metering volume may also minimize waste and enhance the efficiency of fluid usage. In some embodiments, the metering volume may be adjustable, allowing users to modify the amount of liquid released per actuation based on specific requirements. This adjustability may be achieved through variations in the compressibility of the body, external control mechanisms, or interaction with additional devices that regulate the amount of fluid dispensed.

[0088] In some embodiments, the metering volume is defined, set, and / or adjusted in dependence on attachment (docking) of the dispensing device (1) to a further device (180), such as a receptacle, holder, adapter, applicator, or receiving interface. In particular, metering-volume adjustability may be achieved by one or more external control mechanisms that interact with the dispensing device (1), for example mechanical stops and / or threaded engagement and / or bayonet-type engagement features provided on the dispensing device (1) and / or the further device (180). In such embodiments, the docking configuration may control the extent of deformation of the deformable body (100) during a dispensing cycle, thereby controlling the displacement volume and the metering volume dispensed through the outlet valve (130). Accordingly, a common dispensing device (1) may be configured to deliver different metered volumes when operated in conjunction with different further devices (180) and / or different attachment configurations that control the amount of fluid dispensed. In some embodiments, the same attachment (docking) action that establishes a sealed fluidic connection between the dispensing device (1) and the further device (180) also defines an operational configuration that controls the metering volume dispensed per cycle. The attachment configuration may be selected from a plurality of configurations to provide different metering volumes.

[0089] In one embodiment of the present disclosure, the dispensing device (1) may be configured to allow a fluid volume smaller than a predetermined maximum volume to be stored within the compressible hollow body. This may enable controlled dosing by ensuring that only a specific amount of fluid is available for dispensing at any given time. The ability to store a reduced fluid volume may enhance precision in applicationswhere accurate dosing is required, such as pharmaceutical dispensers, laboratory instruments, or cosmetic applications.

[0090] By limiting the amount of stored fluid, the device may prevent over-dispensing, thereby minimizing waste and ensuring more efficient fluid management. This may be particularly advantageous in scenarios where excess fluid release could be problematic, such as in medical treatments, adhesive applications, or controlled chemical dispensing. In some embodiments, the device may include structural features, such as internal barriers or volume-regulating mechanisms, to facilitate controlled storage of a reduced fluid volume.

[0091] Additionally, the ability to store a smaller volume may improve the efficiency of fluid replenishment, allowing the device to be refilled in a controlled manner while maintaining consistency in the amount of fluid dispensed per actuation. This may be achieved through inlet valve (140) regulation or interaction with an external device that governs the fluid intake process.

[0092] In one embodiment of the present disclosure, the fluid may have a viscosity of at least 0.6 cP, such as at least 1 cP, such as at least 3 cP, such as at least 25 cP, such as at least 50 cP, such as at least 100 cP, such as at least 500 cP, such as at least 1000 cP. The viscosity of the fluid may influence the flow characteristics through the inlet and outlet valves (130) and the compressibility of the body. By accommodating fluids with varying viscosities, the dispensing device (1) may be applicable across multiple industries, including pharmaceuticals, food and beverage, cosmetics, and industrial chemicals.

[0093] Lower-viscosity fluids, such as water-based solutions, may require precise valve configurations to prevent unintended leakage while ensuring efficient flow. In contrast, higher-viscosity fluids, such as gels, creams, or thick suspensions, may necessitate increased pressure or modified valve geometries to facilitate smooth dispensing. The device may be configured to adapt to these varying fluid properties by incorporating materials and structural designs that optimize flow resistance and prevent clogging or residue buildup.

[0094] In some embodiments, the inlet and outlet valves (130) may be designed with flexible or elastic materials that adjust to different viscosity levels, ensuring controlled dispensing regardless of fluid consistency. Additionally, variations in compressibility of the body may allow the device to handle a range of fluid viscosities without compromising functionality. The ability to dispense fluids across a broad viscosityspectrum may enhance the versatility of the device, making it suitable for diverse applications requiring controlled fluid release.

[0095] As used herein, the term fluid refers to a substance that can flow and adapt to the shape of its container under the influence of external forces. Fluids may include liquids, gels, pastes, creams, foams, suspensions, emulsions, and lotions, among others. Depending on their behavior under stress, fluids may exhibit Newtonian or nonNewtonian characteristics, as well as viscoelastic properties.

[0096] A Newtonian fluid maintains a constant viscosity regardless of the applied shear stress. Water, simple oils, and many low-molecular-weight solvents fall into this category, as their flow behavior is predictable and independent of external forces beyond pressure and gravity. In contrast, many practical fluids deviate from this behavior and are classified as non-Newtonian, meaning their viscosity changes in response to shear stress or shear rate.

[0097] Non-Newtonian fluids may exhibit shear-thinning properties, where viscosity decreases as shear increases. This behavior is commonly observed in substances such as ketchup, blood, and pharmaceutical gels, where increased force allows the material to spread more easily. Alternatively, some non-Newtonian fluids display shear-thickening behavior, in which viscosity increases with applied shear, as seen in cornstarch suspensions or certain industrial dispersions that harden upon impact. Other fluids may behave as Bingham plastics, which resist flow until a specific yield stress is applied, such as toothpaste or certain construction pastes. Additionally, some fluids change viscosity over time rather than instantaneously under stress. For example, thixotropic fluids gradually become less viscous when subjected to continuous shear, making them ideal for applications like cosmetic gels or food emulsions. Conversely, rheopectic fluids exhibit the opposite behavior, becoming more viscous when exposed to prolonged shear forces, as seen in certain lubricants and industrial suspensions.

[0098] Beyond Newtonian and non-Newtonian classifications, some fluids also exhibit viscoelastic properties, meaning they combine both liquid-like viscosity and solid-like elasticity. These materials, such as biological fluids like mucus or synovial fluid, temporarily deform under stress but may return to their original shape once the force is removed. Similarly, polymer solutions and structured gels used in medical, cosmetic, and industrial applications demonstrate this dual behavior, balancing flowability with structural integrity.For the purposes of this disclosure, the dispensing device (1) is designed to accommodate a wide range of fluids, including those that are Newtonian, nonNewtonian, and viscoelastic, ensuring adaptability across various applications in medical, pharmaceutical, cosmetic, food, and industrial sectors.

[0099] In one embodiment of the present disclosure, the fluid may be selected from liquids, gels, pastes, creams, foams, suspensions, emulsions, lotions, adhesives, solvents, lubricants, pharmaceutical solutions, detergents, food-grade substances, glues, paints, biological samples, and / or chemicals. The dispensing device (1 ) may be designed to accommodate a wide range of fluid types, allowing for broad applicability across various industries, including medical, pharmaceutical, cosmetic, food, and industrial sectors.

[0100] The ability to dispense liquids may enable precise administration of low-viscosity fluids such as pharmaceutical solutions, cleaning agents, or beverages. For gels and pastes, the dispensing device (1) may facilitate controlled release, preventing excessive application and ensuring even distribution, which may be advantageous in cosmetic or adhesive applications. Similarly, creams and lotions may be dispensed in a metered fashion, preventing waste while maintaining hygienic handling.

[0101] For foams and suspensions, the device may be configured to preserve the integrity of the fluid composition, preventing phase separation and ensuring uniform dispensing. In some embodiments, emulsions, such as oil-in-water or water-in-oil formulations, may be dispensed without destabilization of the mixture, maintaining product consistency. The ability to handle adhesives and solvents may allow the dispensing device (1) to be used in industrial and construction applications where precision application is required. In some implementations, the dispensing device (1) may be adapted for use with biological samples, ensuring contamination-free dispensing while maintaining sterility. The ability to dispense paints and chemicals may make the device useful in controlled mixing or application processes, allowing for precision in industrial or laboratory environments. The versatility in handling various fluid types may be enhanced by selecting appropriate materials for the deformable body (100) and the valve structures, ensuring compatibility with different chemical compositions and viscosities.

[0102] In one embodiment of the present disclosure, the dispensing device (1) may comprise a feedback mechanism configured to provide information about the compression status of the deformable body (100) and / or the volume of fluid dispensed. The feedback mechanism may enhance user control by offering real-time indications of thedispensing process. Such mechanisms may be particularly beneficial in applications requiring precision dosing, such as pharmaceutical, medical, or cosmetic products. The feedback mechanism may be integrated into the deformable body (100), the engagement mechanism, or an external interface. It may operate mechanically, electronically, or via a combination of both. For instance, in some embodiments, a mechanical indicator may visibly change position as the deformable body is deformed, providing a direct visual indication of fluid dispensation. Alternatively, an electronic sensor may detect the degree of compression and translate it into a signal, which may be displayed on a digital interface or transmitted to an external monitoring system. In some implementations, the feedback mechanism may also provide predictive dispensing data, estimating the remaining volume in the container (120) based on past dispensing patterns. This may be useful for users who need to track fluid usage or ensure consistent dosages over multiple dispensing cycles. In medical or laboratory settings, such a mechanism may improve accuracy by minimizing human error in dispensing precise volumes of fluid.

[0103] In one embodiment of the present disclosure, the feedback mechanism may be configured to provide tactile feedback, such as clicks, haptic feedback, and / or audible feedback. Tactile feedback may include mechanical resistance or a perceptible "click" when the deformable body (100) reaches a predetermined compression level, signaling that a specific volume of fluid has been dispensed. This may enhance user confidence in manual operation by providing an intuitive indication of successful actuation.

[0104] Haptic feedback may involve vibrations or pulses generated by an electronic actuator within the dispensing device (1), confirming that the device has been compressed to a certain threshold. This feature may be useful in automated or semi-automated dispensing systems (10), where users rely on sensory confirmation rather than direct observation.

[0105] Alternatively, or additionally, an audible feedback mechanism may generate a sound, such as a click, beep, or tone, when the dispensing cycle is completed. This may be achieved mechanically through valve operation or electronically via a sound-generating component. Audible feedback may be particularly beneficial in visually impaired applications or hands-free environments, ensuring the user receives a clear indication of successful dispensing.By incorporating one or more forms of feedback, the dispensing device (1) may improve usability, enhance precision, and reduce the risk of over- or under-dispensing in a wide range of applications.

[0106] In a further aspect, the present disclosure relates to a dispensing system (10) comprising a plurality of the fluid dispensing devices (1) as disclosed herein, wherein the fluid dispensing devices (1) are attached to each other. The dispensing system (10) may enable the coordinated operation of multiple dispensing devices (1), allowing for more efficient, scalable, and controlled dispensing in various applications. By integrating multiple dispensing devices (1), the system may enhance precision, fluid management, and adaptability, making it suitable for diverse industries such as pharmaceuticals, food processing, cosmetics, industrial chemicals, and laboratory automation.

[0107] The plurality of dispensing devices (1) may be configured to function together in a synchronized manner or operate independently within a connected system. Each device within the system may retain its individual characteristics, properties, and dispensing parameters while being part of an interconnected arrangement. The system may allow for the dispensing of different fluids, viscosities, or formulations, supporting applications where multi-phase, multi-component, or sequential dispensing is required. This could be beneficial in chemical processing, medical dosing, or industrial manufacturing, where complex fluid interactions need to be carefully controlled.

[0108] The attachment of the fluid dispensing devices (1) may be achieved through various mechanisms tailored to the intended application. In some embodiments, the devices may be attached mechanically using interlocking structures, clips, fasteners, or threaded connections. In other embodiments, attachment may be facilitated through magnetic coupling, adhesives, or docking interfaces that enable easy assembly and disassembly. The attachment mechanism may be configured to provide a stable and sealed connection between the devices, ensuring secure fluid management while allowing for individual removal or replacement when necessary. The system may also integrate quick-connect mechanisms that enable rapid exchange of dispensing devices (1) without interrupting operation.

[0109] The fluidic connection between the attached dispensing devices (1) may be direct or indirect. In some embodiments, the attachment may facilitate shared fluid pathways, allowing sequential, parallel, or proportionate fluid transfer between multiple dispensing devices (1). In other embodiments, the devices may function independently whileremaining physically attached within a unified system. The system may be configured such that the activation of one device influences or coordinates with the operation of another, such as through mechanical linkages, pressure regulation, or electronic control interfaces.

[0110] The dispensing system (10) may support multi-phase dispensing, wherein each dispensing device (1 ) may contain a different liquid, viscosity, or composition. For example, in pharmaceutical or medical applications, different dispensing devices (1) may contain active ingredients, stabilizers, excipients, or solvents, allowing for precise mixing before administration. In cosmetic formulations, one device may dispense a moisturizer, while another releases serums, oils, or active agents, creating customizable skincare solutions at the point of use. In food production, the system may dispense layered beverages, syrups, emulsifiers, or flavorings, allowing for real-time blending based on user preferences or automated recipe controls.

[0111] Beyond traditional fluid dispensing, the system may be configured for specialized applications, such as reactive fluid dispensing, where different chemicals are dispensed in controlled sequences to initiate chemical reactions, polymerization, or cross-linking processes. In biotechnological and laboratory applications, the dispensing system (10) may facilitate microfluidic analysis, high-precision reagent dosing, or automated sample preparation. In industrial settings, the system may enable adhesive or lubricant application, ensuring controlled distribution across multiple dispensing points.

[0112] By allowing multiple dispensing devices (1) to operate together, the system may improve efficiency, reduce waste, and offer increased flexibility in fluid management. The system may be designed for modular expansion, enabling additional dispensing devices (1) to be incorporated based on operational needs. This modularity may allow for customization, scalability, and adaptability, making the system suitable for both small-scale consumer applications and large-scale industrial fluid handling.

[0113] In one embodiment of the present disclosure, at least a portion of the plurality of fluid dispensing devices (1) are connected in parallel. The parallel arrangement may allow multiple dispensing devices (1) to operate simultaneously, increasing throughput, efficiency, and dispensing capacity. This configuration may be beneficial in high-volume dispensing applications, such as automated production lines, industrial fluid distribution, or multi-station dispensing systems (10).In a parallel dispensing system (10), each dispensing device (1) may be independently controlled, allowing for precise control over flow rates, metering volumes, or actuation sequences. The parallel configuration may allow each dispensing device (1 ) to handle a different fluid or formulation, enabling multi-component mixing, dual-phase dispensing, or the simultaneous delivery of different substances. For example, in pharmaceutical applications, one device may dispense an active ingredient, while another delivers a stabilizing agent or excipient.

[0114] The fluid connections within the parallel system may be designed to support uniform distribution or differential dispensing, depending on the application requirements. In some embodiments, the system may include flow regulators, pressure-balancing elements, or feedback mechanisms to ensure consistent fluid delivery across multiple dispensing points. The system may also incorporate automated controls, allowing for programmable dispensing sequences, synchronized activation, or adaptive flow adjustments.

[0115] In industrial applications, a parallel dispensing system (10) may enable efficient handling of high-viscosity fluids, multi-nozzle distribution, or synchronized batch processing. In consumer applications, such as cosmetics, food preparation, or personal care dispensing, the system may support customized formulations, allowing users to blend different fluids at the point of use.

[0116] By configuring at least a portion of the dispensing devices (1) in parallel, the system may offer higher operational capacity, improved redundancy, and flexible dispensing control. This arrangement may allow fluidic redundancy, where one device can compensate for another in the event of failure or depletion, ensuring continuous operation.

[0117] In one embodiment of the present disclosure, at least a portion of the plurality of fluid dispensing devices (1) are connected in series. The series configuration may allow for sequential fluid transfer or staged dispensing, where the output of one dispensing device (1) serves as the input for another. This arrangement may be advantageous in applications requiring controlled multi-phase dispensing, proportional mixing, or stepwise delivery of different substances.

[0118] In a series configuration, the dispensing devices (1) may be arranged such that each device contributes a specific volume or composition to the final dispensed fluid. This may be useful in applications where different fluids need to be combined in a specific order or ratio, such as in pharmaceutical compounding, where an active ingredient isfirst dispensed, followed by a solvent or stabilizer. Similarly, in industrial adhesives or polymer processing, a curing agent may be introduced after a base material to ensure proper reaction timing.

[0119] The series connection may facilitate progressive concentration adjustments, layered fluid applications, or gradual infusion of one fluid into another. For example, in laboratory or research applications, the system may enable stepwise reagent additions for chemical reactions, titrations, or controlled sample dilution. In food and beverage applications, the series arrangement may be used for layered flavor dispensing, progressive emulsification, or beverage carbonation where sequential fluid interaction is essential.

[0120] The series dispensing system (10) may be designed to incorporate valve control mechanisms, pressure regulators, or flow restrictors to ensure precise fluid control across multiple stages. In some embodiments, the system may include feedback sensors or programmable controls that monitor the dispensing status at each stage, ensuring precise sequencing and dosage accuracy.

[0121] In one embodiment of the present disclosure, the dispensing system (10) comprises a plurality of fluid dispensing devices (1), wherein the fluid dispensing devices (1) comprise fluids of the same and / or different types. This configuration may enable versatile fluid handling, allowing for single-fluid dispensing, multi-fluid blending, or controlled sequential delivery of different fluids. The system may be applicable in a variety of fields, including pharmaceuticals, food processing, cosmetics, chemical manufacturing, and laboratory applications, where precise control over different fluid compositions is necessary.

[0122] In some embodiments, the dispensing system (10) may be configured to store and dispense identical fluids, ensuring high-volume, uninterrupted operation. This may be particularly useful in industrial production lines, where large quantities of a single substance — such as adhesives, lubricants, coatings, or cleaning solutions — are required. The parallel or series configuration of the devices may allow for uniform dispensing, reducing downtime associated with refilling or replacing individual dispensing units.

[0123] Alternatively, or additionally, the dispensing system (10) may be configured to handle multiple different fluids, allowing for customized mixing, layering, or sequential dispensing. For example, in pharmaceutical applications, different dispensing devices (1) may contain active pharmaceutical ingredients (APIs), diluents, excipients, orpreservatives, enabling precise formulation adjustments at the point of use. Similarly, in food and beverage processing, the system may allow for the blending of flavoring agents, emulsifiers, colorants, or stabilizers, enabling dynamic recipe modifications in automated production environments.

[0124] The ability to handle different fluid types may be particularly advantageous in cosmetic and personal care applications, where formulations such as lotions, serums, shampoos, or multi-phase skin treatments may be dispensed in customizable proportions. Users may adjust ingredient concentrations in real-time, allowing for personalized product formulations based on specific preferences or environmental conditions.

[0125] To accommodate different fluid types, the dispensing system (10) may incorporate fluidic separation mechanisms, multi-compartment storage, or specialized valve configurations that prevent cross-contamination between incompatible substances. In some embodiments, the system may include automatic flushing or cleaning mechanisms to transition between different fluids without residual contamination. Additionally, sensors or feedback mechanisms may be used to monitor fluid levels, viscosity changes, or compatibility issues, ensuring optimal performance and reliability. In one embodiment of the present disclosure, the dispensing device (1) may be configured for use with a separate fluid reservoir that is not integrated into the device itself. In such embodiments, the inlet valve (140) may be connected to a conduit, comprising an elongate structure, which may be flexible or rigid, and which may be configured to extend into the fluid reservoir. The conduit allows fluid to be drawn from the separate reservoir into the interior volume of the deformable body (100) when a pressure differential is established.

[0126] The reservoir may include, but is not limited to, a refill pouch, bottle, tank, or container positioned below or adjacent to the dispensing device (1 ).ln certain embodiments, a conduit may be removably attachable to the inlet valve (140), allowing the dispensing device to be connected to different reservoirs of varying size, geometry, or content. In certain embodiments, the inlet valve (140) may be located at the distal end of the conduit, such that the valve is positioned within the fluid reservoir. In such configurations, the conduit facilitates fluid flow from the valve at the reservoir end to the deformable body (100), enabling improved control of fluid uptake, contamination prevention, or submerged valve activation. Further, there may be multiple inlet valves.Thus, the inlet valve(s) (140) may be located at the distal end and / or the proximate end of the conduit.

[0127] In one embodiment of the present disclosure, one or more dispensing devices (1) may be configured for use with a secondary container operatively associated with the deformable body (100). The secondary container may be configured to facilitate fluid communication with the interior volume of the deformable body (100). To achieve selective transfer between the secondary container and the deformable body (100), the system may additionally comprise a sealable interface, which may be positioned between, or be integrated within the structures of the two components.

[0128] This secondary container may be adapted for customization in material composition, size, and geometry to accommodate varying product viscosities, delivery volumes, and equipment types. The secondary container may be formed from a flexible and / or elastic material, for example silicone, low-density polyethylene (LDPE), polyethylene terephthalate (PET), thermoplastic elastomers, or natural rubbers, selected in accordance with the properties of the fluid to be dispensed and / or the intended application. In certain configurations, the secondary container may be configured as a bellow or accordion-like structure, as an elastomeric membrane, or with other geometries that may facilitate volumetric compression and expansion of the interior volume. The secondary container may define a metering volume in a capacity range of from 0.5 mL to 1000 mL, thereby allowing the system to be adapted for small-dose applications as well as larger-volume dispensing. During operation, the secondary container may be operative to measure and dispense one or more predetermined volumes of fluid through the dispensing device (1), in response to a pressure difference generated by deformation of the deformable body, such as by applying a positive or negative pressure relative to the surrounding environment or associated container. The sealable interface may comprise one or more membranes, valves, or filters and may be configured to control the transfer of substances based on operational criteria such as pressure differences or mechanical triggers. The secondary container may be removably or integrally mounted to the dispensing device (1 ), and may vary in size, shape, and material depending on the desired use case. In some configurations, the secondary container may comprise multiple compartments. This arrangement may enhance performance in applications requiring airtight operation, reduced oxidation risk, or controlled environmental conditions, such as pharmaceutical, diagnostic, or food-grade fluid dispensing systems.In one embodiment of the present disclosure, the plurality of dispensing devices (1) within the dispensing system (10) comprise different types of valves. This configuration may allow the system to handle fluids with varying viscosities, flow properties, and dispensing requirements, providing greater adaptability and operational flexibility. The incorporation of different valve types within the system may enable precise control over fluid flow dynamics, ensuring that each dispensing device (1) is optimized for the specific fluid it contains. In some embodiments, dispensing devices (1) configured for low-viscosity fluids (e.g., water-based solutions, solvents, or pharmaceutical formulations) may utilize capillary valves, reed valves, or umbrella valves, which provide precise flow regulation at minimal pressure differences. Conversely, devices handling high-viscosity substances (e.g., gels, creams, adhesives, or pastes) may employ duckbill valves, diaphragm valves, or spring-loaded check valves, which can accommodate thicker fluids while preventing unwanted leakage or backflow.

[0129] Alternatively, or additionally, different valve types may be integrated to optimize the dispensing process for specific use cases. For example, in a multi-phase dispensing system (10), one device may utilize a flap valve for dispensing a bulk fluid, while another employs a precision ball valve for controlled micro-dosing of an additive. In cosmetic formulations, a system may incorporate a lift check valve for dispensing a liquid phase and a pinch valve for controlling a gel-based component, ensuring that the user receives a homogeneous blend of both substances.

[0130] In some embodiments, the choice of valve type may depend on environmental or operational factors, such as pressure conditions, required actuation force, or fluid containment needs. The dispensing system (10) may include self-regulating valves, which adjust based on pressure differentials, or electronic valve control mechanisms, which dynamically modify flow rates based on real-time user inputs or automated control sequences.

[0131] In one embodiment of the present disclosure, the dispensing devices (1) connected in series are configured such that a preceding dispensing device (1) is operable to dispense a metered dose smaller than the metered dose dispensed by a subsequent dispensing device (1 ). This configuration may allow for precise sequential dosing, controlled fluid layering, or progressive mixing of different fluid volumes, depending on the application.

[0132] The series arrangement of dispensing devices (1) may enable stepwise fluid administration, where each subsequent dispensing device (1) dispenses aproportionally larger or controlled volume relative to the preceding one. This may be beneficial in pharmaceutical and medical applications, where precise dosing adjustments are necessary. For example, in an intravenous (IV) infusion system, an initial dispensing device (1) may introduce a small volume of a highly concentrated drug, while a subsequent device dispenses a larger volume of a diluent or carrier fluid, ensuring proper dilution before administration.

[0133] Alternatively, or additionally, this configuration may be applied in chemical processing and industrial formulations, where catalysts, reactants, or stabilizers are introduced in a controlled sequence. A first dispensing device (1) may deliver a small, precisely measured amount of an activating agent, while a second device dispenses a bulk fluid, ensuring progressive reaction kinetics or optimal material composition. This approach may be particularly useful in polymerization, coatings, adhesives, and resin formulations, where metered additive control is required to achieve desired material properties. In additional configurations, the device may be employed for coolants, corrosion-inhibiting formulations, or other technical liquids, with the components cooperating to deliver defined volumes while limiting unintentional leakage, backflow, or exposure of the remaining fluid to ambient air.

[0134] In some embodiments, the series-connected dispensing devices (1) may be utilized in food and beverage production, where different ingredients must be dispensed in a controlled ratio. For instance, a first dispensing device (1) may release a concentrated syrup or flavoring agent, while a second device dispenses a base liquid such as water, milk, or a carbonated solution, enabling on-demand customization of beverages. This setup may allow for flavor layering, multi-phase formulations, or tailored ingredient concentrations based on user preferences. In another embodiment, a container (120) may hold a viscous food product such as honey, syrup, sauce, ketchup, or mayonnaise, and the deformable body (100) may define a dosing chamber that meters a defined quantity of the product for each operation of the system. In other examples, the system may be adapted for oils, dressings, or nutritional gels, where the one-way valve arrangement may limit dripping and unintended discharge while helping to maintain the product under controlled conditions that are suitable for food-grade handling and storage.

[0135] Alternatively, or additionally, in cosmetic and personal care applications, this configuration may enable progressive blending of skincare ingredients, hair treatments, or multi-phase cosmetic products. A preceding dispensing device (1) may dispense asmall amount of a highly potent active ingredient, while a subsequent device dispenses a larger volume of a carrier medium, ensuring proper formulation balance and controlled application. In some embodiments, the deformable body (100) may be configured to dispense a metered volume of a cream, gel, lotion, serum, or shampoo from a container (120), so that each actuation delivers a repeatable dose to the user while limiting exposure of the remaining product to ambient air. Such an arrangement may be used with viscous face creams, hair styling gels, body lotions, sunscreens, or tinted cosmetic formulations, thereby supporting precise dosing, reduced product waste, and improved cleanliness of the outlet region between uses.

[0136] To regulate the dispensing process, the system may incorporate flow restrictors, pressure-regulated valves, or electronic controls that determine the sequence and proportion of each fluid dispensed. The system may also include feedback mechanisms to monitor fluid flow and adjust metering volumes dynamically based on user inputs, sensor data, or preprogrammed dispensing profiles.

[0137] The present disclosure relates to a liquid dispensing system (10) designed for accurate, efficient, and hygienic fluid handling across various industries. The technology enables controlled dispensing, precise dosing, and modular fluid management, making it suitable for healthcare, pharmaceuticals, food and beverage, cosmetics, chemical processing, home care, and industrial automation.

[0138] This dispensing device (1) features a flexible, squeezable container (120) with one-way inlet and outlet valves (130) that allow liquid flow in a controlled manner. The container (120) automatically refills after dispensing, preventing leaks, contamination, or backflow. The system can work with different types of liquids, from water-like solutions to thicker gels, pastes, foams, and emulsions.

[0139] The present disclosure is useful for hygienic and contact-free dispensing, making it ideal for hand sanitizers, pharmaceutical syringes, medical dosing, personal care products like lotions and shampoos, and food products such as sauces, dressings, or liquid supplements. The sealed design prevents leaks and evaporation, ensuring longterm storage and controlled use.

[0140] The technology also allows for multiple dispensing devices (1) to be linked together, creating a multi-phase dispensing system (10). This is beneficial for applications that require mixing or layering of different liquids, such as personalized skincare formulations, custom beverages, or pharmaceutical compounding. The devices can bearranged in series or parallel, enabling simultaneous dispensing of multiple ingredients or step-by-step liquid release in manufacturing and automated systems.

[0141] In some embodiments, one or more dispensing devices (1) may be implemented as closures for bottles, tubes, or other flexible or rigid containers, as well as in pipettes or liquid transfer equipment. For example, the dispensing device (1) may be integrated into a cap that is mounted on a squeezable tube or a rigid bottle, such that deformation of the associated container or of the deformable body (100) causes a metered volume of fluid to be transferred through the internal one-way valve (130) arrangement. In further configurations, the dispensing device (1) may be associated with a pump, valve, or pipette tip, thereby enabling controlled filling and discharge of fluids between primary and secondary containers with reduced risk of spillage, backflow, or contamination during handling and transfer operations.

[0142] In some embodiments, the dispensing device (1) may be utilized in cosmetics and personal-care applications, where products are preferably stored and dispensed under hygienic and controlled conditions. For instance, the deformable body (100) may be configured to dispense a metered volume of a cream, gel, lotion, serum, or shampoo, so that each actuation delivers a repeatable dose to the user while limiting exposure of the remaining product to ambient air. Such an arrangement may support precise dosing, reduced product waste, and improved cleanliness of the outlet region between uses.

[0143] In some embodiments, the dispensing device (1) may be employed in pharmaceutical or medical applications, where controlled and hygienic delivery of liquid or semi-liquid formulations is desired. For example, a deformable body (100) may be arranged to deliver a predetermined volume of a topical cream, gel, or ointment, such as an antibiotic cream or a burn-care formulation, without requiring direct contact of the outlet with the bulk product. In further configurations, the system may be adapted for use with liquid pharmaceutical preparations, for instance for dispensing eye drops, ear drops, wound-care gels, disinfectants, or hand sanitizers, wherein the valve configuration and fluid-tight construction may limit ingress of air and potential contaminants during repeated dosing.

[0144] In some embodiments, the dispensing device (1) may be applied to household and industrial cleaning products, such as detergents, dishwashing liquids, surface cleaners, or lubricants. In one configuration, the dispensing device (1) may be integrated into a closure or module that delivers a fixed amount of detergent or cleaning fluid into awash basin, washing machine, or other appliance, in response to actuation of the deformable body (100). In other configurations, the system may be arranged to meter industrial cleaning agents, maintenance fluids, or lubricants from refillable or replaceable containers, thereby facilitating repeatable dosing, limiting operator exposure, and supporting cleaner and more controlled dispensing in domestic or industrial environments.

[0145] In some embodiments, the dispensing device (1) may be configured in compact, portable formats suitable for travel or on-the-go use. For instance, a small-volume container (120) equipped with a deformable body (100) may be used to dispense controlled doses of personal-care products such as hand sanitizers, sunscreens, lotions, or cosmetic fluids in sizes suitable for transport in a bag or pocket. In other configurations, the dispensing device (1) may be used for food condiments or other consumable liquids in portable packaging, where the metered dosing function and valve configuration contribute to leak resistance and to maintaining the cleanliness of the outlet during repeated use outside of a home or industrial setting.

[0146] The fluid dispensing system (10) may be used in smart packaging, eco-friendly refillable containers (120), medical treatments, and industrial processing where precision, efficiency, and hygiene are critical. It may be integrated into automated machines, loT-enabled liquid dispensers, and hands-free dosing systems for improved convenience and efficiency.

[0147] By combining precision, flexibility, and contamination control, this technology offers reliable and efficient liquid dispensing solutions that can be adapted for consumer, medical, and industrial applications. The ability to work with various liquid viscosities, connect multiple devices, and ensure consistent dosing makes it a valuable innovation for packaging, dosing, refilling, and automated fluid control in many sectors.

[0148] The present disclosure describes various embodiments of a dispensing device (1) and a dispensing system (10). While specific implementations, configurations, and features are described herein, these are provided as examples and should not be construed as limiting. The present disclosure may be modified, combined, or adapted based on specific use cases, application environments, or technological advancements.

[0149] It will be understood that the present disclosure is not limited to the precise structures, materials, and arrangements described. Modifications, substitutions, and equivalents that perform substantially the same function in substantially the same way to achieve substantially the same results fall within the scope of the disclosure. Various alternativeconfigurations may be employed without departing from the principles and advantages set forth in this application.

[0150] Unless explicitly stated otherwise, the terminology used herein should be given the broadest reasonable interpretation consistent with the understanding of those skilled in the art. Singular forms of words shall be interpreted to include their plural counterparts and vice versa. The use of “comprising,” “including,” or similar terms should be interpreted as open-ended and non-limiting, unless explicitly stated otherwise.

[0151] Examples

[0152] The following examples illustrate various implementations of the dispensing device and system as described herein. These examples are provided to demonstrate potential applications and should not be construed as limiting to the scope of the invention. The dispensing device and system may be adapted, modified, or integrated into numerous other configurations beyond those explicitly described, depending on specific use cases, industry requirements, or technological advancements. All such variations and equivalents fall within the scope of the present disclosure.

[0153] Example 1: Centrifugal Dispensing in a Washing Machine

[0154] A washing machine incorporates multiple dispensing devices positioned within the drum, each containing a different fluid, such as detergent, stain remover, or fabric softener. These devices are initially filled through an adapter that allows multiple units to be refilled simultaneously, ensuring consistent pre-loading before each cycle. Once filled, the inlet valve (140) seals to prevent leakage, keeping the fluids contained until activation.

[0155] The dispensing devices can be secured to the drum using mechanical attachments such as clips, snap-fit brackets, or adhesive mounts, ensuring they remain in place throughout the wash cycle. Alternatively, they may be housed in a designated compartment within the drum’s structure, where they are exposed to the same centrifugal forces as the laundry while being protected from excessive movement. As the wash cycle begins, the drum rotates at low speed, keeping all dispensing devices inactive. When the spin speed reaches a defined threshold, the first device experiences sufficient force to compress its deformable body (100), triggering the outlet valve (130) to release detergent into the drum. The detergent disperses evenly through the water, while the inlet valve remains closed, preventing unwanted dilution.Later in the cycle, as the drum accelerates further, a second dispensing device undergoes compression, releasing a stain remover at the optimal stage of the cleaning process. During the rinse cycle, an even higher spin speed activates the third device, dispensing fabric softener for proper conditioning of the fabrics. Once the drum slows down, the resilient compressible bodies (100) re-expand, resetting for the next cycle. By integrating these securely attached dispensing devices into the washing machine, the system ensures precise, automatic fluid release at the correct stages, eliminating the need for electronic pumps or separate detergent compartments. This setup enhances efficiency, dosing accuracy, and user convenience, making it well-suited for both standard and high-efficiency washing machines.

[0156] Example 2: Fluid Dispensing Device for Topical Applications

[0157] A dispensing device (1 ) functions as a dosing cap for a bottle containing topical fluids, such as sun cream, body lotion, or medicated gels like arthritis pain relief formulations. The device comprises a resilient deformable body (100), which is designed with an accordion-like or bellows configuration, allowing it to compress and re-expand in a controlled manner. The device includes an inlet valve (140) and an outlet valve (130), both of which are normally closed to prevent unintended leakage and contamination. To dispense the fluid, the user squeezes the bottle, creating a pressure difference that forces the liquid into the dispensing device through the inlet valve (140). The deformable body (100) expands as it fills, accommodating a precisely metered volume of fluid. Once the deformable body reaches its defined maximum expansion, the inlet valve (140) closes, ensuring that no additional liquid enters.

[0158] In a second step, the user presses the dosing cap or applies force directly to the deformable body, causing it to collapse and expel the pre-measured dose through the outlet valve (130) onto the application surface, such as the skin. The airtight sealing of the device in a non-operational state preserves the stability of the formulation, preventing oxidation, evaporation, or contamination.

[0159] The dispensing device can be used independently or in conjunction with a further device (180), such as an applicator pad, sponge, or dosing receptacle, to facilitate even distribution of the fluid. By ensuring precise dosing, the system reduces product waste, enhances application control, and maintains hygienic dispensing, making it particularly suitable for pharmaceutical, cosmetic, and personal care products.In representative operation with topical formulations, the dispensing device (1) provides a dosing consistency in which the dispensed volume per actuation deviates by not more than about 2 % from a predefined target volume for a given setting, even when handling fluids with viscosities in a range from about 1 cP to about 10000 cP or more, including low-viscosity lotions, medium-viscosity creams, and highly viscous gels. Example 3: Agitation-Based Dosing Cap for Liquid Medicine

[0160] A dispensing device (1 ) is integrated into a dosing cap for a liquid medicine container, ensuring precise, pre-measured dosing without requiring external measuring tools. The device consists of a deformable body (100), an inlet valve (140) connected to the liquid container, and an outlet valve (130) for controlled dispensing. Unlike conventional dosing caps that rely solely on gravity or user-controlled pouring, this system utilizes agitation to drive fluid intake, ensuring that each dose is consistently measured before dispensing.

[0161] Before use, the user shakes or inverts the container, generating internal pressure fluctuations that force liquid through the inlet valve (140) into the dosing chamber. As the deformable body (100) expands to its maximum volume, it naturally limits the amount of fluid that can be drawn in, thereby defining the metering volume. Once fully expanded, no further fluid enters, and the inlet valve (140) closes due to the pressure equalization between the interior volume and the external container, preventing unintentional intake.

[0162] To dispense, the user presses or squeezes the cap, compressing the deformable body (100), which forces the pre-measured fluid through the outlet valve (130). Once dispensing is complete, the body remains in a collapsed or partially collapsed state, rather than re-expanding automatically. The system remains in this state until the container is agitated again, at which point fluid is once more driven into the chamber through the inlet valve (140), resetting the system for the next dose.

[0163] This controlled filling and dispensing process ensures that each actuation delivers an exact, repeatable dose without requiring the user to measure manually. The sealed design prevents leaks and contamination, making it ideal for pediatric medicines, liquid pain relievers, and other precise formulations. This system simplifies medication administration while maintaining product integrity and hygiene.Example 4: Free-Floating Dosing Device for Washing Machines

[0164] A dispensing device (1 ) is designed to tree-float within a washing machine drum, enabling controlled dosing without requiring attachment to the drum or detergent compartments. The device consists of a compressible dosing chamber (100), an inlet valve (140) for fluid intake, and an outlet valve (130) for controlled dispensing. Similar to previous washing machine examples, the system utilizes centrifugal forces at specific spin speeds to activate dispensing while remaining untethered inside the drum. Before use, the device is filled via an adapter, which enables fluid transfer into the chamber. The system can comprise a single device for one-time dispensing or multiple devices when different fluids need to be dispensed at different stages of the wash cycle. Once filled, the inlet valve (140) remains sealed, ensuring that no fluid leaks before activation. The device is then placed inside the washing machine, where it floats freely among the laundry.

[0165] As the wash cycle progresses, the drum rotation increases, generating centrifugal forces that compress the dosing chamber (100). When a predetermined force threshold is reached, a precisely metered amount of detergent, fabric softener, or treatment fluid is expelled through the outlet valve (130). The outlet valve prevents uncontrolled dispensing, ensuring that release occurs only at the intended wash stage.

[0166] The dosing chamber (100) may function in different ways depending on its configuration. In one embodiment, the chamber may be non-resilient and initially collapsed, only expanding upon fluid transfer through the adapter. Once filled, it retains its shape, and the inlet valve (140) closes to prevent further intake. In another embodiment, the chamber may be resilient and capable of self-restoring, expanding after compression to create a pressure differential that draws in fluid through the inlet valve until it reaches full capacity. Alternatively, a resilient chamber with air inside may allow fluid intake through agitation, where pressure fluctuations caused by movement within the washing machine temporarily compress and expand the air inside the chamber, facilitating the intake of liquid before the inlet valve seals.

[0167] Each configuration ensures that a precise volume of fluid is pre-loaded into the chamber before the wash cycle begins. Once dispensing occurs during the spin cycle, the chamber remains collapsed or partially collapsed until it is refilled via the adapter before the next use. This free-floating system eliminates the need for built-in detergent compartments or drum-mounted dispensers while ensuring precise, automatic fluid release throughout the washing process. The design is particularly suitable for pre-measured single-use applications or refillable systems, providing an efficient and controlled solution for modern laundry care.

[0168] Example 5: Gravity-Activated Laundry Sanitizer and Detergent Dosing Device

[0169] A dosing device (1) is incorporated as the closure mechanism on a container holding laundry sanitizer, detergent, or fabric softener, enabling precise, controlled dispensing. The system relies on gravity to fill the dosing chamber and a manual compression step to release the fluid, ensuring that each dose is measured before being dispensed. When the container is inverted, the weight of the liquid creates fluid pressure, causing the inlet valve (140) to open. This allows a precisely metered volume of liquid to enter the deformable body (100), which is resilient, which expands to accommodate the fluid. Once the defined metering volume is reached, the inlet valve (140) closes, preventing any additional liquid from entering the chamber. Throughout this process, the external outlet valve (130) remains closed, ensuring that the fluid does not dispense prematurely.

[0170] To release the measured dose, the user compresses the deformable body (100), which forces the liquid through the outlet valve (130) and into the washing machine. Once the fluid is expelled, the deformable body (100) can be implemented to cause an expansion, but in some implementations the inlet valve (140) can be arranged to remain closed until the container is re-inverted or repositioned, ensuring that no excess fluid enters the chamber until the system is actively primed again.

[0171] This system prevents overdosing, minimizes waste, and ensures repeatable dispensing, making it particularly suitable for concentrated laundry liquids that require controlled dosing. The design eliminates the need for separate measuring cups, reducing spills and improving user convenience while maintaining an airtight, leak-proof structure for fluid storage.

[0172] Example 6: Dispensing Device with Remote Fluid Intake via Modular Conduit

[0173] A dispensing device (1) may be configured to intake fluid from a separate reservoir via a conduit connected to the inlet valve (140). The conduit may comprise an elongate structure, which may be flexible or rigid, dimensioned to extend into the reservoir, allowing fluid to be drawn into the interior volume of the deformable body (100) when a pressure differential is established, such as by elastic expansion of the body following compression.This arrangement enables the dispensing device (1) to access fluids from a wide variety of external storage formats, such as floor-standing bulk containers, refill pouches, narrow-neck bottles, or sealed fluid reservoirs. The conduit may be configured to function in a submersible or dip-tube-like manner, remaining immersed within the reservoir during operation. In some embodiments, the conduit may incorporate features to assist with stability or alignment, such as weighted tips, rigid structural support, or external guides.

[0174] To enhance adaptability, the conduit may be removably attachable to the inlet valve (140), allowing the dispensing device (1) to be reconfigured for different applications or fluid types. The connection between the conduit and the inlet valve (140) may be implemented using various mechanical fittings, such as threaded couplings, snap-fit elements, bayonet interfaces, or sterile quick-connect systems, depending on the operational environment.

[0175] This configuration supports diverse use cases where the fluid source is physically separated from the dispensing location. Non-limiting examples include: cleaning systems where a handheld dispenser draws from a stationary detergent drum; laboratory instruments drawing reagents from temperature-controlled vessels; or consumer packaging wherein a reusable dosing head accesses refill containers stored beneath a counter. The system enables precise, hygienic, and user-friendly fluid dispensing across industrial, laboratory, medical, and consumer sectors.

[0176] Example 7: Dispensing Device with Secondary Container

[0177] A dispensing device (1) may include a deformable body (100) configured to define a metering volume for receiving and dispensing a primary fluid. The deformable body may be arranged within a further device (180) and may be connected to an inlet valve (140) and an outlet valve (130), both of which are configured to permit unidirectional fluid flow during actuation.

[0178] In one embodiment, a secondary container is operatively associated with the deformable body (100) and is configured to enable a controlled, sealed, and selective transfer of a material, such as a gas, vapor, additive, or other auxiliary substance, into or out of the interior volume of the deformable body. The material transferred from the secondary container is not intended to mix with the primary fluid, but rather to serve a functional purpose such as displacing air to facilitate intake, providing internal pressurization to assist in expulsion, equalizing pressure before or after dispensing, or introducing a protective atmosphere to reduce the risk of contamination or degradationof the stored fluid. The secondary container may be connected to the deformable body via a sealable interface, which may include a membrane, check valve, spring-loaded valve, rupturable barrier, or selective filter. This interface may be configured to open under defined internal conditions, such as when a threshold pressure is reached within the deformable body, during compression or expansion, or in response to thermal or mechanical triggers. The secondary container may be constructed from flexible, semirigid, or rigid materials, such as polymers, elastomeric films, laminates, or composites, and may be dimensioned according to the intended use, ranging from compact, low-volume designs for handheld dispensers to larger-volume implementations for industrial applications. In some configurations, the secondary container is removably mounted to the dispensing device, allowing it to be replaced or refilled after a number of uses.

[0179] In another embodiment, the secondary container maybe integrally formed with or adjacent to the deformable body, sharing a wall or structural element to simplify manufacturing and maintain compactness.

[0180] The system may further be configured such that the secondary container includes multiple internal compartments separated by actuated or pressure-responsive elements, thereby enabling the staged release of different auxiliary substances under varying conditions. A dispensing system (10) may include one or more such devices, each independently equipped with a secondary container, and may be arranged in parallel or in series, depending on whether simultaneous or sequential operation is desired. This architecture is particularly suitable for use in environments where sealed operation, environmental isolation, gas management, or fluid integrity is critical, including but not limited to medical, pharmaceutical, laboratory, or industrial fluid handling systems.

[0181] In various embodiments, the transfer of material from the secondary container into the deformable body (100) may occur in response to a pressure drop caused by fluid expulsion, a pressure rise caused by compression, or a passive re-expansion event. The timing of such transfer may precede, coincide with, or follow the dispensing of the primary fluid, depending on the specific configuration and operational cycle of the device. In some cases, the auxiliary substance may be delivered at a threshold pressure, independent of absolute timing.

[0182] In typical implementations, the cooperation between the deformable body (100), the container, the secondary container and the associated valve arrangement maintains asubstantially air-reduced or airless condition in the interior volume for durations that can range from essentially non-airless operation, where rapid pressure equalization is permitted, to periods on the order of about one minute or about one hour, and up to several days or more than two weeks, depending on the material selection, wall thicknesses, geometry, and the requirements of the associated product, equipment, or machine.

[0183] Detailed Description of Figures

[0184] The figures provided herein illustrate various non-limiting embodiments of the present disclosure and are presented to aid in the understanding of the present disclosure. The specific configurations, orientations, and proportions depicted are exemplary and should not be construed as limiting the scope of the disclosure. Variations, modifications, and alternative embodiments may be employed without departing from the principles set forth in the present application.

[0185] Fig. 1 illustrates a dispensing device (1) in a perspective view, showing its structural components. The dispensing device (1) comprises a container (120) that includes a deformable body (100) defining an interior volume for fluid storage and metering. The container (120) is configured to store, meter, and dispense fluid through at least one inlet valve (140) and at least one outlet valve (130). A resilient deformable body (100) can enable controlled dispensing by allowing fluid to be expelled upon compression while reverting to its original shape to facilitate refilling.

[0186] Fig. 2 presents a side view of the dispensing device (1), where hidden edges are indicated with dashed lines to reveal internal components. The container (120) is shown, enclosing the deformable body (100), which serves as the active metering mechanism. The dispensing device (1) features an inlet valve (140) and an outlet valve (130), which regulate fluid entry and egress, respectively. The deformable body (100) of this example functions by being deformed to meter fluid and subsequently expanding to draw in a refill volume.

[0187] Fig. 3 provides a detailed side view of a rigid body (110) that integrates both an inlet valve (140) and an outlet valve (130). This design allows the rigid body (110) to house both valves within a single structural component, thereby simplifying assembly and reducing the number of separate components needed in the dispensing device (1). The inlet valve (140) facilitates fluid intake, while the outlet valve (130) regulates fluiddischarge. The rigid body (110) may be attached to the container (120), which houses the deformable body (100) for metered dispensing.

[0188] Fig. 4 illustrates a rigid body (110) that is adaptable to house either an inlet valve (140) or an outlet valve (130), depending on its configuration with the container (120) and deformable body (100). By selecting an appropriate valve configuration, the rigid body (110) can be customized for various fluid dispensing applications. The deformable body (100) interacts with the rigid body (110) to enable controlled fluid metering and dispensing.

[0189] Fig. 5 presents a side view of a rigid body (110) incorporating an inlet valve (140) in the form of a duckbill valve. Additionally, the rigid body (110) features a threaded engagement mechanism (170) for attachment to an external fluid source. This allows for secure and leak-proof connection to reservoirs, ensuring controlled refilling of the dispensing device (1 ). The use of a duckbill valve as the inlet valve (140) enables unidirectional fluid entry while preventing backflow.

[0190] Fig. 6 provides a perspective view of the rigid body (110) shown in Fig. 5, further detailing the inlet valve (140) and the threaded engagement mechanism (170). This configuration illustrates how the rigid body (110) integrates with the container (120) to provide a sealed and controlled filling mechanism for the dispensing device (1 ).

[0191] Fig. 7 depicts a perspective view of the dispensing device (1), where the container (120) encloses the deformable body (100), which is configured in an accordion-like structure. This configuration enhances the elasticity and compressibility of the body, allowing it to effectively meter and dispense a defined volume of fluid. The dispensing device (1) also features a threaded engagement mechanism (170), enabling secure attachment to compatible fluid reservoirs.

[0192] Fig. 8 presents a cut-away view of the dispensing device (1), providing an internal view of its structural components. The container (120) is shown housing the deformable body (100), which functions as a fluid metering and dispensing mechanism. The threaded engagement mechanism (170) is visible, allowing for controlled refilling. The cut-away perspective reveals the internal flow path of the fluid between the inlet valve (140) and the outlet valve (130).

[0193] Fig. 9 illustrates an embodiment where the dispensing device (1) is incorporated as a cap mounted onto a container (170). In this configuration, the deformable body (100) remains housed within the container (120), enabling precise metering and dispensingof stored fluid. The integration of the dispensing device (1) as a cap allows for easy replacement and refilling while maintaining a sealed environment.

[0194] Fig. 10 shows an embodiment of the dispensing device (1), wherein the deformable body (100) adopts a funnel-shaped configuration. The container (120) in this embodiment is formed by the deformable body (100), which expands and contracts to meter fluid. The outlet valve (130) is positioned at the narrower end of the funnel shape, and a membrane (160) is provided to regulate fluid dispensing. Hidden edges are displayed, revealing the internal structure of the dispensing mechanism.

[0195] Fig. 11 presents a perspective view of the funnel-shaped membrane (160), with hidden edges shown to illustrate its internal structure. The membrane (160) is designed to facilitate controlled fluid dispensing when integrated into the outlet valve (130). It may serve as part of the deformable body (100) or as a separate dispensing control mechanism. The flexible nature of the membrane (160) allows it to deform under applied pressure, ensuring precise and consistent fluid metering.

[0196] Items

[0197] 1. A dispensing device (1 ), configured for measuring, storing, and / or dispensing fluids, the device comprising:

[0198] o a container (120) defining an interior volume for storing fluid, the container (120) including a deformable body (100) configured with a metering volume, wherein the metering volume is adjustable when the device is operated in conjunction with a further device (180);

[0199] o at least one outlet valve (130) configured to allow unidirectional fluid flow from the interior volume of the deformable body to an external environment, such that compression of the deformable body (100) dispenses a fluid volume corresponding to the metering volume; and

[0200] o at least one inlet valve (140) configured to allow unidirectional fluid flow into the interior volume of the deformable body, such as when the deformable body (100) reverts to its original shape or when fluid is directed into the interior volume under an applied pressure.

[0201] 2. The dispensing device (1) according to any one of the preceding items, wherein the inlet valve (140) and the outlet valve (130) are configured as normally closed valves.3. The dispensing device (1) according to any one of the preceding items, wherein the inlet valve (140) and / or the outlet valve (130) is independently selected from the group consisting of capillary valves, ball valves, flap valves, diaphragm valves, spring-loaded check valves, pinch valves, lift check valves, reed valves, umbrella valves, and / or duckbill valves.

[0202] 4. The dispensing device (1) according to any one of the preceding items, wherein the container (120) is used in forming the inlet and outlet (130) valves, wherein the inlet valve (140) comprises part of the container (120) being in tension covering the aperture of the valve; and wherein the outlet valve (130) is a capillary valve, such that the chosen fluid cannot flow out of the container (120) without an external force acting upon it.

[0203] 5. The dispensing device (1) according to any one of the preceding items, wherein the device is configured to be repeatedly removably attachable to a further device (180), such as a receptacle.

[0204] 6. The dispensing device (1) according to any one of the preceding items, wherein the fluid dispensing device (1) comprises an inlet engagement mechanism for attaching the fluid dispensing device (1) to a further device (180), such as a fluid storage device.

[0205] 7. The dispensing device (1) according to item 6, wherein the inlet engagement mechanism is configured to removably attach the fluid dispensing device (1) to the further device (180) and to simultaneously establish a sealed fluidic connection between the interior volume of the deformable body (100) and the further device (180), through the inlet valve (140).

[0206] 8. The dispensing device (1) according to any one of the preceding items, wherein the fluid dispensing device (1) comprises an outlet engagement mechanism for attaching the fluid dispensing device (1) to a further device (180), such as a fluid receiving device.

[0207] 9. The dispensing device (1) according to item 8, wherein the outlet engagement mechanism is configured to removably attach the fluid dispensing device (1) to the further device (180) and simultaneously establish a sealed fluidic connection between the interior volume of the deformable body (100) and the further device (180), through the outlet valve (130).The dispensing device (1) according to any one of the preceding items, wherein the deformable body (100) comprises a self-restoring elastically deformable structure (101) capable of returning to its original shape after compression. The dispensing device (1) according to any one of the preceding items, wherein the deformable body (100) is configured as a bellow, an accordion-like configuration, a spring-assisted mechanism, or an elastomeric membrane. The dispensing device (1) according to any one of the preceding items, wherein the deformable body (100) is configured to revert to its original shape upon release of a compressive force applied to the deformable body (100).

[0208] The dispensing device (1) according to any one of the preceding items, wherein the deformable body (100) is composed of a flexible material, including but not limited to silicone, low-density polyethylene (LDPE), polyethylene terephthalate (PET), thermoplastic elastomers, or natural rubbers.

[0209] The dispensing device (1) according to any one of the preceding items, wherein the deformable body (100) is configured to be compressed, thereby dispensing the metering volume, under:

[0210] o an axial compression force applied to the deformable body, ranging from 0.1 N to 5000 N, such as from 5 N to 1000 N, such as from 1 N to 500 N; o a centrifugal force acting on the deformable body (100) during rotation, ranging from 100 N to 250 kN, such as from 1 kN to 100 kN, such as from 10 kN to 50 kN;

[0211] o a positive pressure difference between the external environment and the interior volume ranging from 2 mbar to 200 bar, such as from 20 mbar to 20 bar, such as from 200 mbar to 2 bar, such as wherein the outlet valve (130) is not exposed to the positive pressure; and / or

[0212] o a negative pressure difference between the external environment and the interior volume ranging from -2 mbar to -200 bar, such as from -20 mbar to - 20 bar, such as from -200 mbar to -2 bar.

[0213] The dispensing device (1) according to any one of the preceding items, wherein the inlet valve (140) and / or the outlet valve (130) each comprises an elastic membrane (160) covering the aperture of the valve.

[0214] The dispensing device (1) according to item 15, wherein the elastic membrane (160) is composed of very low-density polyethylene (VLDPE), ultra-low-densitypolyethylene (ULDPE), latex, silicone, natural rubber, synthetic rubber, or thermoplastic elastomer (TPE), and / or wherein the membrane has a wall thickness of at least 0.01 mm, such as at least 0.05 mm, such as at least 0.1 mm.

[0215] 17. The dispensing device (1) according to any one of the preceding items, wherein the device is fluid-tight when not activated.

[0216] 18. The dispensing device (1) according to any one of the preceding items, wherein the device is configured to be airtight when in a non-operational state, such that no ingress or egress of air or contents within the container (120) occurs through the inlet or outlet valves (130).

[0217] 19. The dispensing device (1) according to any one of the preceding items, wherein the device is configured to store the liquid for short-term and / or long-term durations, such as for immediate use, intermittent dispensing, or prolonged storage.

[0218] 20. The dispensing device (1) according to any one of the preceding items, wherein the metering volume is within the range of from 0.5 ml to 1000 ml, such as from 1 ml to 750 ml, such as from 2.5 ml to 500 ml, such as from 5 ml to 250 ml. 21. The dispensing device (1) according to any one of the preceding items, wherein the device is configured to allow a fluid volume smaller than a predetermined maximum volume to be stored within the compressible hollow body.

[0219] 22. The dispensing device (1) according to any one of the preceding items, wherein the fluid has a viscosity of at least 0.6 cP, such as at least 1 cP, such as at least 3 cP, such as at least 25 cP, such as at least 50 cP, such as at least, 100 cP, such as at least 500 cP, such as at least 1000 cP.

[0220] 23. The dispensing device (1) according to any one of the preceding items, wherein the fluid is selected from liquids, gels, pastes, creams, foams, suspensions, emulsions, lotions, adhesives, solvents, lubricants, pharmaceutical solutions, detergents, food-grade substances, glues, paints, biological sample, and / or chemicals.

[0221] 24. The dispensing device (1) according to any one of the preceding items, wherein the device comprises a feedback mechanism configured to provide informationabout the compression status of the deformable body (100) and / or the volume of fluid dispensed.

[0222] 25. The dispensing device (1) according to item 25, wherein the feedback mechanism is configured to provide tactile feedback, such as clicks, haptic feedback, and / or audible feedback.

[0223] 26. The dispensing device (1) according to any one of the preceding items, wherein the inlet valve (140) is connected to a conduit configured to be immersed in a separate fluid reservoir, such that fluid is drawn into the interior volume of the deformable body (100) through the conduit when a pressure differential is applied.

[0224] 27. The dispensing device (1) according to item 27, wherein the conduit comprises an elongate structure, which may be flexible or rigid, and is configured to extend into a separate fluid reservoir to facilitate fluid intake into the interior volume of the deformable body (100).

[0225] 28. The dispensing device (1) according to any one of the preceding items, wherein the conduit is removably attachable to the inlet valve (140), allowing selective connection to external reservoirs of varying sizes and configurations.

[0226] 29. The dispensing device (1) according to any one of the preceding items, wherein a secondary container is operatively associated with the deformable body (100), the secondary container comprising a sealable interface configured to selectively permit substance communication between the secondary container and the interior volume of the deformable body (100).

[0227] 30. The dispensing device according to item 30, wherein the sealable interface comprises a membrane, valve or filter.

[0228] 31. A dispensing system (10) comprising a plurality of the fluid dispensing devices (1) according to any one of the preceding items, wherein the fluid dispensing devices (1) are attached to each other.

[0229] 32. The dispensing system (10) according to item 32, wherein at least a portion of the plurality of fluid dispensing devices (1) are connected in parallel.The dispensing system (10) according to any one or items 32 to 33, wherein at least a portion of the plurality of fluid dispensing devices (1) are connected in series.

[0230] The dispensing system (10) according to any one of items 32 to 34, wherein the fluid dispensing devices (1) comprise fluids of the same and / or of different types.

[0231] The dispensing system (10) according to any one of items 33 to 35, wherein the plurality of dispensing devices (1) comprise different types of valves.

[0232] The dispensing system (10) according to item 31 , wherein the dispensing devices (1) connected in series are configured such that a preceding dispensing device (1) is operable to dispense a metered dose smaller than the metered dose dispensed by a subsequent dispensing device (1).

[0233] A dispensing system (10) comprising:

[0234] o one or more dispensing devices (1) according to any one of items 1 to 31 ;

[0235] and

[0236] o a separate fluid reservoir,

[0237] wherein the inlet valve (140) of the dispensing device (1) is connected to a conduit configured to extend into the fluid reservoir, such that when a pressure differential is applied within the deformable body (100), fluid is drawn through the conduit into the interior volume of the deformable body (100).

[0238] The dispensing system (10) according to any one of items 36 to 37, wherein the conduit comprises an elongate structure, which may be flexible or rigid, and is configured to extend into a lower portion of the fluid reservoir and / or to enable submerged fluid withdrawal from the reservoir.

[0239] A dispensing system (10) comprising one or more dispensing devices (1 ) according to any one of the preceding items, wherein at least one dispensing device (1) includes a secondary container operatively associated with the deformable body (100), the secondary container comprising a sealable interface configured to selectively permit substance communication with the interior volume of the deformable body (100), wherein the sealable interface comprises a membrane, valve, or filter, and optionally configured to respond to a pressure threshold during operation.The dispensing system (10) according to item 40, wherein the secondary container is removably or integrally mounted to the dispensing device (1), and is configured to deliver an additive, gas, or fluid into the deformable body (100) before, during, or after a dispensing cycle.

Claims

53Claims1. A dispensing device (1 ) configured for measuring, storing, and / or dispensing fluids, the device comprising:• a container (120) defining an interior volume for storing fluid, the container (120) including a deformable body (100) configured with a metering volume, wherein the metering volume is adjustable when the device is operated in conjunction with a further device (180);• at least one outlet valve (130) configured to permit unidirectional fluid flow from the interior volume to an external environment, wherein compression of the deformable body (100) expels a metered fluid volume through the outlet valve (130); and• at least one inlet valve (140) configured to permit unidirectional fluid flow into the interior volume, wherein the inlet valve (140) is actuated in response to a pressure differential between the external environment and the interior volume, such that fluid enters when the deformable body (100) expands towards its original shape or when an external force directs fluid into the interior volume.

2. The dispensing device (1) according to claim 1 , wherein the deformable body is resilient, and comprises a self-restoring elastically deformable structure (101) capable of returning to its original shape after compression.

3. The dispensing device (1 ) according to claim 2, wherein the elastically deformable structure is configured as a bellow, an accordion-like configuration, a spring- assisted mechanism, or an elastomeric membrane.

4. The dispensing device (1) according to any one of the preceding claims, wherein the inlet valve (140) and the outlet valve (130) are normally closed valves, configured to open in response to a pressure difference across the valve.

5. The dispensing device (1) according to any one of the preceding claims, wherein the inlet valve (140) and / or the outlet valve (130) is independently selected from the group consisting of capillary valves, ball valves, flap valves, diaphragm valves, spring-loaded check valves, pinch valves, lift check valves, reed valves, umbrella valves, and / or duckbill valves.

546. The dispensing device (1) according to any one of the preceding claims, wherein the container (120) is used in forming the inlet and outlet (130) valves, wherein the inlet valve (140) comprises part of the container (120) being in tension covering the aperture of the valve; and wherein the outlet valve (130) is a capillary valve, such that the chosen fluid cannot flow out of the container (120) without an external force acting upon it.

7. The dispensing device (1) according to any one of the preceding claims, wherein the device is configured to be removably attachable to a further device (180), such as a receptacle.

8. The dispensing device (1) according to any one of the preceding claims, wherein the fluid dispensing device (1) comprises an inlet engagement mechanism for attaching the fluid dispensing device (1) to a further device (180), such as a fluid storage device; andwherein the inlet engagement mechanism is configured to removably attach the fluid dispensing device (1) to the further device (180) and to simultaneously establish a sealed fluidic connection between the interior volume and the further device (180), through the inlet valve (140).

9. The dispensing device (1) according to any one of the preceding claims, wherein the fluid dispensing device (1) comprises an outlet engagement mechanism for attaching the fluid dispensing device (1) to a further device (180), such as a fluid receiving device; andwherein the outlet engagement mechanism is configured to removably attach the fluid dispensing device (1 ) to the further device (180) and simultaneously establish a sealed fluidic connection between the interior volume and the further device (180), through the outlet valve (130).

10. The dispensing device (1) according to any one of the preceding claims, wherein the deformable body (100) is composed of a flexible material, including but not limited to silicone, low-density polyethylene (LDPE), polyethylene terephthalate (PET), thermoplastic elastomers, or natural rubbers.

11. The dispensing device (1) according to any one of the preceding claims, wherein the deformable body (100) is configured to be compressed, thereby dispensing the metering volume, under:55an axial compression force applied to the deformable body, ranging from 0.1 N to 5000 N, such as from 5 N to 1000 N, such as from 1 N to 500 N;• a centrifugal force acting on the deformable body (100) during rotation, ranging from 100 N to 250 kN, such as from 1 kN to 100 kN, such as from 10 kN to 50 kN;• a positive pressure difference between the external environment and the interior volume ranging from 2 mbar to 200 bar, such as from 20 mbar to 20 bar, such as from 200 mbar to 2 bar, such as across the outlet valve (130); and / or• a negative pressure difference between the external environment and the interior volume ranging from -2 mbar to -200 bar, such as from -20 mbar to - 20 bar, such as from -200 mbar to -2 bar, such as wherein the negative pressure causes the deformable body (100) to collapse.

12. The dispensing device (1) according to any one of the preceding claims, wherein the inlet valve (140) and / or the outlet valve (130) each comprises an elastic membrane (160) covering the aperture of the valve.

13. The dispensing device (1) according to claim 12, wherein the elastic membrane (160) is composed of very low-density polyethylene (VLDPE), ultra-low-density polyethylene (ULDPE), latex, silicone, natural rubber, synthetic rubber, or thermoplastic elastomer (TPE).

14. The dispensing device (1) according to any one of claims 12 or 13, wherein the membrane has a wall thickness of at least 0.01 mm, such as at least 0.05 mm, such as at least 0.1 mm.

15. The dispensing device (1) according to any one of the preceding claims, wherein the fluid is selected from liquids, gels, pastes, creams, foams, suspensions, emulsions, lotions, adhesives, solvents, lubricants, pharmaceutical solutions, detergents, food-grade substances, glues, paints, biological samples, and / or chemicals.

16. The dispensing device (1) according to any one of the preceding claims, wherein the device is configured to store the liquid for short-term and / or long-term durations, such as for immediate use, intermittent dispensing, or prolonged storage.5617. The dispensing device (1) according to any one of the preceding claims, wherein the metering volume is within the range of from 0.5 ml to 1000 ml, such as from 1 ml to 750 ml, such as from 2.5 ml to 500 ml, such as from 5 ml to 250 ml.

18. The dispensing device (1) according to any one of the preceding claims, wherein the device is configured to allow a fluid volume smaller than a predetermined maximum volume to be stored within the compressible hollow body.

19. The dispensing device (1) according to any one of the preceding claims, wherein the fluid has a viscosity of at least 0.6 cP, such as at least 1 cP, such as at least 3 cP, such as at least 25 cP, such as at least 50 cP, such as at least, 100 cP, such as at least 500 cP, such as at least 1000 cP.

20. The dispensing device (1) according to any one of the preceding claims, wherein the device comprises a feedback mechanism configured to provide information about the compression status of the deformable body (100) and / or the volume of fluid dispensed.

21. The dispensing device (1) according to claim 20, wherein the feedback mechanism is configured to provide tactile feedback, such as clicks, haptic feedback, and / or audible feedback.

22. The dispensing device (1) according to any one of the preceding claims, wherein the device is configured to be fluid-tight in a non-operational state, preventing ingress or egress of fluid or air through the inlet valve (140) and / or the outlet valve (130).

23. The dispensing device (1) according to any one of the preceding claims, wherein the inlet valve (140) is connected to a conduit configured to be immersed in a separate fluid reservoir, such that fluid is drawn into the interior volume of the deformable body (100) through the conduit when a pressure differential is applied.

24. The dispensing device (1) according to claim 23, wherein the conduit comprises an elongate structure, which may be flexible or rigid, and is configured to extend into a separate fluid reservoir to facilitate fluid intake into the interior volume of the deformable body (100).

25. The dispensing device (1) according to any one of the preceding claims, wherein the conduit is removably attachable to the inlet valve (140), allowing selective connection to separate external reservoirs of varying sizes and configurations.

26. The dispensing device (1) according to any one of the preceding claims, wherein a secondary container is operatively associated with the deformable body (100), the secondary container comprising a sealable interface configured to selectively permit substance communication between the secondary container and the interior volume of the deformable body (100).

27. The dispensing device according to claim 26, wherein the sealable interface comprises a membrane, valve or filter.

28. The dispensing device (1) according to any one of the preceding claims, wherein, when the dispensing device (1) is docked with the further device (180), the further device (180) and / or a docking interface between the dispensing device (1) and the further device (180) mechanically constrains deformation of the deformable body (100) during a dispensing cycle to thereby define or adjust the metered fluid volume expelled through the outlet valve (130).

29. The dispensing device (1) according to claim 33, wherein the mechanical constraint comprises one or more external control mechanisms selected from a mechanical stop, an abutment surface, a collar, a sleeve, a cam surface, a detent position, a bayonet position, and a threaded engagement position.

30. A dispensing system (10) comprising a plurality of the fluid dispensing devices (1 ) according to any one of the preceding claims, wherein the fluid dispensing devices (1) are attached to each other.

31. The dispensing system (10) according to claim 30, wherein at least a portion of the plurality of fluid dispensing devices (1) are connected in parallel.

32. The dispensing system (10) according to any one of claims 30 or 31 , wherein at least a portion of the plurality of fluid dispensing devices (1) are connected in series.

33. The dispensing system (10) according to any one of claims 30 to 31 , wherein the fluid dispensing devices (1) comprise fluids of the same and / or of different types.

34. The dispensing system (10) according to claim 30, wherein the dispensing devices (1 ) that are connected comprise different types of valves.

35. A dispensing system (10) comprising:one or more dispensing devices (1) according to any one of the claims 1-29; and- a separate fluid reservoir,wherein the inlet valve (140) of the dispensing device (1 ) is connected to a conduit configured to extend into the fluid reservoir, such that when a pressure differential is applied within the deformable body (100), fluid is drawn through the conduit into the interior volume of the deformable body (100).

36. The dispensing system (10) according to any one of the claims 30-35, wherein the conduit comprises an elongate structure, which may be flexible or rigid, and is configured to extend into a lower portion of the fluid reservoir and / or to enable submerged fluid withdrawal from the reservoir.

37. The dispensing system (10) according to any one of claims 30-36, wherein at least one dispensing device (1) comprises a secondary container operatively associated with the deformable body (100), the secondary container comprising a sealable interface configured to selectively permit substance communication with the interior volume of the deformable body (100), wherein the sealable interface comprises a membrane, valve, or filter, and is optionally configured to respond to a pressure threshold during operation.

38. The dispensing system (10) according to claim 37, wherein the secondary container is removably or integrally mounted to the dispensing device (1), and is configured to deliver a gas, vapor, or auxiliary fluid into the deformable body (100), wherein said delivery occurs in response to a pressure change associated with a dispensing cycle.

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