Cartridge endcap of gas filtration cartridge used in multi-stage gas filtration device

WO2026196190A1PCT designated stage Publication Date: 2026-09-24SURE PURITY LTD
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Patent Information

Application Number
PCT/IB2026/052613
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2025-03-19
Filing Date
2026-03-18
Publication Date
2026-09-24

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Abstract

A cartridge endcap of a gas filtration cartridge, comprising a unitary body comprising a contact interface to removably couple the cartridge endcap at an end of the gas filtration cartridge, where the contact interface comprises one or more angled surfaces configured to be aligned to the gas filtration cartridge when the cartridge endcap is coupled to the end of the gas filtration cartridge. The cartridge endcap comprises an integrated screen portion molded within a portion of the unitary body such that the integrated screen portion is integral to the cartridge endcap, where the integrated screen portion comprises a plurality of interconnected flow channels with an open area configuration configured to allow a controlled gas flow exclusively through the plurality of interconnected flow channels from the end of the gas filtration cartridge.
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Description

[0001]

[0002] CARTRIDGE ENDCAP OF GAS FILTRATION CARTRIDGE USED IN MULTISTAGE GAS FILTRATION DEVICE

[0003] TECHNICAL FIELD

[0004] The present disclosure relates generally to the field of gas filtration cartridges; and more specifically, to a cartridge endcap of a gas filtration cartridge used in a multi-stage gas filtration device.

[0005] BACKGROUND

[0006] Cartridges used in filtration and containment systems often rely on endcaps for securing internal components and facilitating operational functionality. Traditional endcap designs frequently incorporate a multi-part construction that requires the assembly of separate components, such as metal screens, to retain the contents of the cartridge. Such assembly process can be cumbersome and prone to damage, particularly when metal rivets are hammered into place to secure the metal screens with the plastic cartridge endcap. This has not only resulted in increased manufacturing costs due to rework or replacement of damaged endcaps but has also raised concerns regarding the overall product quality and longevity. Such damage can compromise the structural integrity of the cartridge endcap, leading to increased manufacturing defects, production inefficiencies, and material wastage.

[0007] The existing solutions have predominantly focused on multi-part constructions or complex assembly processes, which have limitations in terms of simplicity, cost, and potential for endcap damage. Furthermore, the existing solutions in the field lack a streamlined approach to ensuring sufficient gas flow through the endcap while maintaining secure containment of the cartridge contents. Thus, there exists a technical problem of how to balance mechanical robustness of the cartridge endcap without using the metal screen while maintaining ease of assembly and operational performance of the cartridge endcap.

[0008] Therefore, in light of the foregoing discussion, there exists a need to overcome the aforementioned drawbacks associated with the conventional endcap designs.

[0009]

[0010] SUMMARY

[0011] The present disclosure provides a cartridge endcap of a gas fdtration cartridge used in a multi-stage gas filtration device. The present disclosure provides a solution to the existing problem of how to balance mechanical robustness of the cartridge endcap without using metal screen while maintaining ease of assembly and operational performance of the cartridge endcap. An aim of the present disclosure is to provide a solution that overcomes at least partially the problems encountered in prior art, and provide a cartridge endcap of a gas filtration cartridge used in a multi-stage gas filtration device, with efficient filtration properties.

[0012] The object of the present disclosure is achieved by the solutions provided in the enclosed independent claims. Advantageous implementations of the present disclosure are further defined in the dependent claims.

[0013] In one aspect, the present disclosure provides a cartridge endcap of a gas filtration cartridge, comprising a unitary body comprising a contact interface to removably couple the cartridge endcap at an end of the gas filtration cartridge, where the contact interface comprises one or more angled surfaces configured to be aligned to the gas filtration cartridge when the cartridge endcap is coupled to the end of the gas filtration cartridge. The cartridge endcap further comprises an integrated screen portion molded within a portion of the unitary body such that the integrated screen portion is integral to the cartridge endcap, where the integrated screen portion comprises a plurality of interconnected flow channels with an open area configuration. The plurality of interconnected flow channels with the open area configuration are configured to allow a controlled gas flow exclusively through the plurality of interconnected flow channels from the end of the gas filtration cartridge when the cartridge endcap is coupled to the end of the gas filtration cartridge.

[0014] The present disclosure provides a unique cartridge endcap for a gas filtration cartridge, featuring the unitary body with the integrated screen portion molded within the unitary body. Such integrated design enables the cartridge endcap to be removably coupled to the gas filtration cartridge while also containing the cartridge's contents and allowing sufficient gas flow. The advantages of this aspect are evident in its innovative single-piece construction, which eliminates the requirement for external fastening elements and simplifies the

[0015]

[0016] manufacturing process. The integrated screen portion not only provides structural integrity to the cartridge endcap but also ensures a continuous and secure containment of the cartridge contents. By combining the unitary body with the integrated screen portion, the cartridge endcap achieves a seamless and efficient design that addresses the challenges of containing the cartridge contents and facilitating gas flow, setting it apart from other multi-part constructions commonly used for similar purposes . Furthermore, the unitary body includes angled surfaces that ensure precise alignment of the cartridge endcap with the gas filtration cartridge, enhancing the overall performance and efficiency of the gas filtration cartridge. Additionally, the integrated screen portion, with the plurality of interconnected flow channels and open area configuration, allows for controlled gas flow exclusively through the screen, ensuring efficient filtration while maintaining sufficient gas flow. The synergistic combination of the precise alignment provided by the angled surfaces and the controlled gas flow facilitated by the integrated screen portion results in an endcap that optimizes filtration performance and gas flow, thereby improving the overall functionality of the gas filtration cartridge.

[0017] In an implementation form, the plurality of interconnected flow channels comprises predefined gaps in a defined pattern and size configured to form a barrier for a predetermined type of cartridge contents.

[0018] The predefined gap configuration makes the integrated screen portion more robust and resistant to becoming blocked or compromised by larger contaminants, enhancing the overall reliability and consistent performance of the cartridge endcap. The predefined gap configuration enables the integrated screen portion to selectively filter cartridge contents while enabling controlled gas flow.

[0019] In a further implementation form, the unitary body has an inner end and an outer end, and where the inner end comprises the contact interface and the outer end comprises a protrusion extending from the portion of the unitary body in which the integrated screen portion is moulded in the unitary body.

[0020] The contact interface on the inner end ensures a secure and reliable connection with the gas filtration cartridge, minimizing the risk of leakage or misalignment. The outer end's protrusion, integrating the molded screen portion, provides additional structural

[0021]

[0022] reinforcement and facilitates precise positioning of the endcap within the cartridge assembly, enhancing durability and operational consistency.

[0023] In a further implementation form, the diameter of the unitary body of the cartridge endcap is in a range of 130-160 millimetres.

[0024] By virtue of having the diameter of the unitary body in the range of 130-160 millimetres, the cartridge endcap provides an optimized balance between structural strength and compatibility with standard cartridge housings.

[0025] In a further implementation form, the unitary body of the cartridge endcap has a thickness in a range of 10-40 millimetres excluding a length of the protrusion.

[0026] By virtue of having the unitary body of thickness in the range of 10-40 millimetres, the cartridge endcap manifests more robustness and resistance to deformation or damage during use and handling.

[0027] In a further implementation form, the unitary body of the cartridge endcap has a thickness in a range of 20-60 millimetres including a length of the protrusion.

[0028] By virtue of having the unitary body of thickness including the length of the protrusion in the range of 20-60 millimetres, the cartridge endcap manifests enhanced structural integrity and resistance to deformation or damage during use.

[0029] In a further implementation form, the one or more angled surfaces of the contact interface are configured to be aligned to the gas filtration cartridge within a tolerance range of 0.05 to 0.5 degrees when the cartridge endcap is coupled to the end of the gas filtration cartridge. The specified tolerance range ensures a precise, consistent and secure alignment between the cartridge endcap and the gas filtration cartridge.

[0030] In a further implementation form, a size of the open area configuration of the plurality of interconnected flow channels is in a range of one-third to one-half of the diameter of the cartridge endcap.

[0031]

[0032] The open area configuration of the plurality of interconnected flow channels being within one-third to one-half of the diameter of the cartridge endcap results in an optimization of gas flow and structural integrity of the cartridge endcap.

[0033] In a further implementation form, the unitary body is made of plastic, or other polymeric material.

[0034] The unitary body being made of plastic or other polymeric material is advantageous in terms of lightweight nature combined with high durability and chemical resistance.

[0035] It is to be appreciated that all the aforementioned implementation forms can be combined. It has to be noted that all devices, elements, circuitry, units and means described in the present application could be implemented in the software or hardware elements or any kind of combination thereof. All steps which are performed by the various entities described in the present application as well as the functionalities described to be performed by the various entities are intended to mean that the respective entity is adapted to or configured to perform the respective steps and functionalities. Even if, in the following description of specific embodiments, a specific functionality or step to be performed by external entities is not reflected in the description of a specific detailed element of that entity which performs that specific step or functionality, it should be clear for a skilled person that these methods and functionalities can be implemented in respective software or hardware elements, or any kind of combination thereof. It will be appreciated that features of the present disclosure are susceptible to being combined in various combinations without departing from the scope of the present disclosure as defined by the appended claims.

[0036] Additional aspects, advantages, features and objects of the present disclosure would be made apparent from the drawings and the detailed description of the illustrative implementations construed in conjunction with the appended claims that follow.

[0037] BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The summary above, as well as the following detailed description of illustrative embodiments, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the present disclosure, exemplary constructions of the

[0039]

[0040] disclosure are shown in the drawings. However, the present disclosure is not limited to specific methods and instrumentalities disclosed herein. Moreover, those skilled in the art will understand that the drawings are not to scale. Wherever possible, like elements have been indicated by identical numbers.

[0041] Embodiments of the present disclosure will now be described, by way of example only, with reference to the following diagrams wherein:

[0042] FIG. 1A illustrates a three-dimensional (3D) side view of a cartridge endcap of a gas filtration cartridge, in accordance with an embodiment of the present disclosure; FIG. IB illustrates a 3D internal view of a cartridge endcap of a gas filtration cartridge, in accordance with an embodiment of the present disclosure;

[0043] FIG. 2 is a 3D side view of a cartridge endcap of a gas filtration cartridge, in accordance with another embodiment of the present disclosure;

[0044] FIG. 3A is a top view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure;

[0045] FIG. 3B is a bottom view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure;

[0046] FIG. 4A is a top-down view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure;

[0047] FIG. 4B is a bottom -up view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure;

[0048] FIG. 4C is a side view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure;

[0049] FIG. 4D is a side view of a cartridge endcap in two dimensions, in accordance with another embodiment of the present disclosure; and

[0050] FIG. 5 illustrates an implementation scenario of a cartridge endcap, in accordance with an embodiment of the present disclosure.

[0051] In the accompanying drawings, an underlined number is employed to represent an item over which the underlined number is positioned or an item to which the underlined number is adjacent. A non-underlined number relates to an item identified by a line linking the nonunderlined number to the item. When a number is non-underlined and accompanied by an

[0052]

[0053] associated arrow, the non-underlined number is used to identify a general item at which the arrow is pointing.

[0054] DETAILED DESCRIPTION OF EMBODIMENTS

[0055] The following detailed description illustrates embodiments of the present disclosure and ways in which they can be implemented. Although some modes of carrying out the present disclosure have been disclosed, those skilled in the art would recognize that other embodiments for carrying out or practicing the present disclosure are also possible.

[0056] FIG. 1A illustrates a three-dimensional (3D) side view of a cartridge endcap of a gas fdtration cartridge, in accordance with an embodiment of the present disclosure. With reference to FIG. 1A, there is shown a 3D side view 100A of a cartridge endcap 102. The cartridge endcap 102 comprises a unitary body 104 which has an inner end (visible in FIG. IB) and outer end 106. The outer end 106 of the unitary body 104 comprises a protrusion 108 extending from a portion of the unitary body 104. The unitary body 104 further comprises a contact interface 110. The cartridge endcap 102 is represented by a dashed box, which is used for illustration purpose only.

[0057] The cartridge endcap 102 may be referred to as a closure or cover at one end of a gas fdtration cartridge, typically serving as a barrier to contain the fdtration media and direct gas flow. The unitary body 104 may be referred to as a single-piece structure made of a polymer material (e.g., thermoplastic material), typically formed through a molding or shaping process, and possessing a uniform composition throughout.

[0058] The protrusion 108 may be referred to as a part or structure that extends outward from a portion of the unitary body 104, typically in a manner that is noticeable or prominent. The contact interface 110 may be referred to as an area or surface where two components (e.g., the cartridge endcap 102 and the gas fdtration cartridge) come into contact with each other, often designed to facilitate a specific type of interaction or connection. The contact interface 110 may be either a threaded contact interface, or a clamped contact interface or a locking ring contact interface. Furthermore, the contact interface 110 may include a plurality of perforations for fixing the cartridge endcap 102 at one end of the gas fdtration cartridge.

[0059]

[0060] FIG. IB illustrates a 3D internal view of a cartridge endcap of a gas fdtration cartridge, in accordance with an embodiment of the present disclosure. FIG. IB is described in conjunction with elements from FIG. 1A. With reference to FIG. IB, there is shown a 3D internal view 100B of the cartridge endcap 102. The unitary body 104 has an inner end 112, where the inner end 112 comprises the contact interface 110. The contact interface 110 comprises one or more angled surfaces 114. The cartridge endcap 102 further comprises an integrated screen portion 116 molded within a portion of the unitary body 104. The integrated screen portion 116 comprises a plurality of interconnected flow channels 118 with an open area configuration.

[0061] The one or more angled surfaces 114 may be referred to as planar or curved surfaces which are inclined at specific angles relative to a reference plane, axis, or adjacent surface.

[0062] The integrated screen portion 116 may be referred to as a section of the cartridge endcap 102 that incorporates a mesh or perforated structure for filtering or separating particulate matter from a gas.

[0063] The plurality of interconnected flow channels 118 may be referred to as a network of fluid or gas pathways that are linked or joined together.

[0064] The 3D internal view 100B of the cartridge endcap 102 illustrates that the integrated screen portion 116 is molded into the unitary body 104 (i.e., plastic endcap body), forming a unitary structure. The integrated design eliminates the requirement for traditional multi-part assemblies, such as separate metal screens fastened using rivets, which previously posed significant challenges. The concentric pattern (i.e., the plurality of interconnected flow channels with the open area configuration) visible in the integrated screen portion 116 demonstrates precision engineering intended to optimize gas flow while securely containing the cartridge contents. The integrated design addresses the risk of damaging the plastic endcap (i.e., the unitary body 104) during assembly, a common issue with traditional designs that relied on hammering metal rivets into place. The surrounding plastic structure reinforces the screen's placement, enhancing the overall structural integrity and ensuring consistent performance. By simplifying the manufacturing process, the integrated design reduces complexity, minimizes part wastage, and improves the reliability of the cartridge endcap 102.

[0065]

[0066] There is provided the cartridge endcap 102 of the gas fdtration cartridge, comprising the unitary body 104 comprising the contact interface 110 to removably couple the cartridge endcap 102 at an end of the gas filtration cartridge, where the contact interface 110 comprises one or more angled surfaces 114 configured to be aligned to the gas filtration cartridge when the cartridge endcap 102 is coupled to the end of the gas filtration cartridge. The cartridge endcap 102 is designed as a single polymeric body. By virtue of the single polymeric body, the complexity in manufacturing process of the cartridge endcap 102 has been reduced by eliminating multiple steps which are traditionally required for fabricating plastic endcap components. The one or more angled surfaces 114 on the contact interface 110 stabilize the connection between the cartridge endcap 102 and the gas filtration cartridge and therefore, creates a robust, repeatable coupling that maintains the proper alignment. Moreover, the one or more angled surfaces 114 may simplify the assembly process and improve the consistency of how the cartridge endcap 102 connects with the gas filtration cartridge, compared to a purely cylindrical or flat contact interface. The coupling of the cartridge endcap 102 at the end of the gas filtration cartridge is shown and described in detail, for example, in FIG. 5. In an implementation, the unitary body 104 is made of plastic, or other polymeric material. The unitary body 104 being made of plastic or other polymeric material is advantageous in terms of lightweight nature combined with high durability and chemical resistance. Additionally, polymeric materials enable cost-effective manufacturing through molding processes, allowing for complex designs like integrated screens to be produced as a single unit, enhancing structural integrity and reducing assembly complexity of the cartridge endcap 102.

[0067] In an implementation, the one or more angled surfaces 114 of the contact interface 110 are configured to be aligned to the gas filtration cartridge within a tolerance range of 0.05 to 0.5 degrees when the cartridge endcap 102 is coupled to the end of the gas filtration cartridge. The term "tolerance range" refers to an acceptable deviation from a specified dimension or value. Furthermore, the one or more angled surfaces 114 are designed to precisely align the cartridge endcap 102 to the gas filtration cartridge. This precise alignment ensures a consistent and secure fit between the cartridge endcap 102 and the gas filtration cartridge. By precisely aligning the cartridge endcap 102 to the gas filtration cartridge, the one or more angled surfaces 114 likely contribute to the overall structural integrity and performance

[0068]

[0069] stability of an assembled filtration system. The angled design can compensate for minor variations in manufacturing tolerances.

[0070] The cartridge endcap 102 of the gas filtration cartridge further comprises the integrated screen portion 116 molded within a portion of the unitary body 104 such that the integrated screen portion 116 is integral to the cartridge endcap 102, where the integrated screen portion 116 comprises the plurality of interconnected flow channels 118 with an open area configuration. The term "open area configuration" refers to an arrangement of the screen or mesh structure that allows for the passage of gas while retaining particulates. The integrated screen portion 116 is designed to be molded directly within a portion of the unitary body 104 during the manufacturing process. This ensures that the integrated screen portion 116 becomes a seamless and continuous part of the cartridge endcap 102 without the requirement of any external fastening elements. This further simplifies the manufacturing process and reduces assembly complexity of the cartridge endcap 102 by eliminating the requirement for separate fabrication and mechanical attachment of a screen element. The molding of the integrated screen portion 116 to the unitary body 104 resolves the technical problem of potential damage to the cartridge endcap 102 during the assembly process when using a separately attached metal screen. The open area configuration of the integrated screen portion 116 is designed to provide the appropriate balance of content retention and gas flow through the cartridge endcap 102 and allow for reliable performance of the gas filtration cartridge.

[0071] In an implementation, a size of the open area configuration of the plurality of interconnected flow channels 118 is in a range of one-third to one-half of the diameter of the cartridge endcap 102. The open area configuration, which ranges from one-third to one-half of the endcap diameter, is optimized to retain the desired contents within the cartridge while still allowing sufficient gas flow through the gas filtration cartridge. The open area configuration provides sufficient open area to ensure efficient and controlled gas flow while maintaining a robust endcap structure to withstand operational pressures. The balance between open area and material coverage minimizes the risk of deformation or failure, ensuring durability and reliable performance in filtration applications.

[0072]

[0073] The key technical advantages of the integrated screen portion 116 are the manufacturing simplicity, structural integrity, consistent performance, optimized gas flow, and reduced part complexity it provides compared to traditional multi -part endcap designs.

[0074] The plurality of interconnected flow channels 118 with the open area configuration are configured to allow a controlled gas flow exclusively through the plurality of interconnected flow channels 118 from the end of the gas filtration cartridge when the cartridge endcap 102 is coupled to the end of the gas filtration cartridge. The term "controlled gas flow" refers to the regulation and direction of gas movement through the integrated screen portion to achieve a desired filtration or flow rate. The integrated screen portion 116 comprises the plurality of interconnected flow channels 118 with the open area configuration within a specific range, allowing for controlled gas flow exclusively through these channels. Such design enables the cartridge endcap 102 to contain the contents of the cartridge while also permitting sufficient gas flow, thereby enhancing the overall functionality of the gas filtration cartridge. The interconnected nature of the plurality of interconnected flow channels 118 makes the integrated screen portion more resistant to becoming blocked or compromised, enhancing the overall durability and reliability of the cartridge endcap 102.

[0075] In an implementation, the plurality of interconnected flow channels 118 comprises predefined gaps in a defined pattern and size configured to form a barrier for a predetermined type of cartridge contents. The predefined gaps are strategically placed to create a barrier for certain types of cartridge contents that are larger than the size of the predefined gaps, while still allowing a controlled gas flow through the plurality of interconnected flow channels 118. The predefined gaps in the plurality of interconnected flow channels 118 can be sized to act as a physical barrier, trapping any pre-determined types of cartridge contents that are larger than the gap size. This ensures that the contents remain within the cartridge endcap 102 as intended. At the same time, the controlled size and pattern of the gaps still allows the desired gas flow to pass through the plurality of interconnected flow channels 118, which maintains the required gas flow characteristics of the gas filtration cartridge. The predefined gap configuration makes the integrated screen portion 116 more robust and resistant to becoming blocked or compromised by larger contaminants, enhancing the overall reliability and consistent performance of the cartridge endcap 102.

[0076]

[0077] In an implementation, the unitary body 104 has the inner end 112 and the outer end 106, and where the inner end 112 comprises the contact interface 110 and the outer end 106 comprises the protrusion 108 extending from the portion of the unitary body 104 in which the integrated screen portion 116 is molded in the unitary body 104. The protrusion 108 at the outer end 106 and the contact interface 110 at the inner end 112 of the unitary body 104 provide defined features that can provide consistent alignment and secure the cartridge endcap 102 to the gas filtration cartridge. This ensures the cartridge endcap 102 is properly positioned every time. Incorporating the integrated screen portion 116 within the unitary body 104, with the alignment features on the inner and outer ends, simplifies the manufacturing process compared to assembling multiple separate components. The contact interface 110 at the inner end 112 likely provides a reliable sealing surface to create a secure connection between the cartridge endcap 102 and the gas filtration cartridge. The ability to mould the integrated screen portion 116 directly into the unitary body 104 provides design flexibility to optimize the shape, size, and positioning of the screen in relation to rest of the endcap features. FIG. 2 is a 3D side view of a cartridge endcap of a gas filtration cartridge, in accordance with another embodiment of the present disclosure. FIG. 2 is described in conjunction with elements from FIGs. 1A and IB. With reference to FIG. 2, there is shown a 3D side view 200 of the cartridge endcap 102.

[0078] The 3D side view 200 illustrates that the unitary, single -piece construction of the cartridge endcap 102 which incorporates the integrated screen portion 116 molded into the unitary body 104. This design approach addresses the technical limitations of the traditional multipart endcap assemblies, which required separate manufacturing and mechanical fastening of the metal screen to the plastic endcap component. The utilization of the integrated screen portion 116 eliminates these assembly steps, reducing manufacturing complexity and improving structural integrity by removing potential weak points inherent in the multicomponent construction. The integrated screen portion 116 is precisely engineered screen with controlled porosity, which allows for the required gas flow while also effectively containing the contents of the gas filtration cartridge. The molding of the integrated screen portion 116 into the unitary body 104 provides a robust endcap design that enhances the overall performance and reliability of the gas filtration cartridge.

[0079]

[0080] FIG. 3A is a top view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure. FIG. 3A is described in conjunction with elements from FIGs. 1A, IB and 2. With reference to FIG. 3A, there is shown a top view 300A of the cartridge endcap 102 in two dimensions. The top view 300A features the integrated screen portion 116 molded within a portion of the unitary body 104 to allow controlled gas flow while securely containing the cartridge contents, with the unitary structure eliminating the requirement for mechanical fasteners and improving structural integrity.

[0081] In an implementation, the diameter of the unitary body 104 of the cartridge endcap 102 is in a range of 130-160 millimetres. By virtue of having the diameter of the unitary body 104 in the range of 130-160 millimetres, the cartridge endcap 102 provides an optimized balance between structural strength and compatibility with standard cartridge housings. This range ensures sufficient surface area for secure sealing and gas flow management while maintaining a compact size for efficient integration into existing gas filtration cartridges. FIG. 3B is a bottom view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure. FIG. 3B is described in conjunction with elements from FIGs. 1 A, IB, 2 and 3A. With reference to FIG. 3B, there is shown a bottom view 300B of the cartridge endcap 102 in two dimensions. The bottom view 300B highlights that the integrated screen portion 116 is designed with concentric and radial segments (i.e., the plurality of interconnected flow channels) to facilitate controlled gas flow while securely retaining the cartridge contents. Surrounding the edge of the cartridge endcap 102 are evenly distributed engagement features, which ensure a secure fit within the cartridge housing. The unitary design of the cartridge endcap 102 eliminates the requirement for additional fasteners, enhancing manufacturing efficiency and structural integrity.

[0082] FIG. 4A is a top-down view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure. FIG. 4A is described in conjunction with elements from FIGs. 1A, IB, 2, 3A and 3B. With reference to FIG. 4A, there is shown a top-down view 400A of the cartridge endcap 102 in two dimensions. The top-down view 400A of the cartridge endcap 102 illustrates a simplified, single-piece endcap structure that integrates the screen functionality (i.e., the integrated screen portion 116) directly into the molded component (i.e., the unitary body 104).

[0083]

[0084] In an implementation, the unitary body 104 of the cartridge endcap 102 has a thickness in a range of 10-40 millimetres excluding a length of the protrusion 108. This is achieved by integrating the screen (i.e., the integrated screen portion 116) directly into the endcap body (more specifically, the unitary body 104) during the molding process, eliminating the requirement for separate fabrication of plastic endcap components and the risk of damage posed by hammering metal rivets into place. By virtue of having the unitary body 104 of thickness in the range of 10-40 millimetres, the cartridge endcap 102 manifests more robustness and resistance to deformation or damage during use and handling. The aforementioned thickness range may further support to maintain the seal and performance of the cartridge endcap 102.

[0085] In an implementation, the unitary body 104 of the cartridge endcap 102 has a thickness in a range of 20-60 millimetres including a length of the protrusion 108. By virtue of having the unitary body 104 of thickness including the length of the protrusion 108 in the range of 20-60 millimetres, the cartridge endcap 102 manifests enhanced structural integrity and resistance to deformation or damage during use. The inclusion of the protrusion length within the aforementioned thickness range suggests the designers have carefully considered the overall dimensional constraints and ergonomics of the cartridge endcap 102 as an integrated component.

[0086] FIG. 4B is a bottom -up view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure. FIG. 4B is described in conjunction with elements from FIGs. 1A, IB, 2, 3A-3B and 4A. With reference to FIG. 4B, there is shown a bottom-up view 400B of the cartridge endcap 102 in two dimensions. The bottom-up view 400B of the cartridge endcap 102 illustrates a simplified, single-piece endcap structure that integrates the screen functionality (i.e., the integrated screen portion 116) directly into the molded component (i.e., the unitary body 104). The bottom-up orientation allows to examine the underside features and construction of the cartridge endcap 102, is required for understanding how the cartridge endcap 102 interfaces with rest of the cartridge assembly. FIG. 4C is a side view of a cartridge endcap in two dimensions, in accordance with an embodiment of the present disclosure. FIG. 4C is described in conjunction with elements

[0087]

[0088] from FIGs. 1A, IB, 2, 3A-3B, 4A and 4B. With reference to FIG. 4C, there is shown a side view 400C (e.g., left-side view) of the cartridge endcap 102 in two dimensions.

[0089] The side view 400C (e.g., left-side view) showcases how the cartridge endcap 102 is envisioned to look as a complete, streamlined component, with the required functional elements seamlessly incorporated into the molded structure. This visual representation supports the key innovative aspects of the design, which focus on simplifying the manufacturing process while maintaining the required cartridge containment and gas flow characteristics.

[0090] FIG. 4D is a side view of a cartridge endcap in two dimensions, in accordance with another embodiment of the present disclosure. FIG. 4D is described in conjunction with elements from FIGs. 1A, IB, 2, 3A-3B, 4A, 4B and 4C. With reference to FIG. 4D, there is shown a side view 400D (e.g., right-side view) of the cartridge endcap 102 in two dimensions. FIG. 5 illustrates an implementation scenario of a cartridge endcap, in accordance with an embodiment of the present disclosure. FIG. 5 is described in conjunction with elements from FIGs. 1A, IB, 2, 3A-3B, 4A, 4B, 4C and 4D. With reference to FIG. 5, there is shown an implementation scenario 500 of the cartridge endcap 102. In the implementation scenario 500, the cartridge endcap 102 is fitted at one end of a gas filtration cartridge 502.

[0091] The gas filtration cartridge 502 may be referred to as a component or assembly designed to remove impurities or particles from a gas stream, often comprising a housing and a filter medium. The gas filtration cartridge 502 may be used in a multi-stage gas filtration device comprising a number of gas filtration stages. The gas filtration cartridge 502 may be used in a retail beverage dispensing application to purify carbon dioxide (CO2) used for beverage carbonation. The gas filtration cartridge 502 with the cartridge endcap 102 may also be used in manufacturing of beverages.

[0092] In an implementation, a component-to-component contact of the cartridge endcap 102 to the gas filtration cartridge 502 is a polymeric to metal contact, wherein a tube of the gas filtration cartridge 502 is made of a metal element. In an implementation scenario, the tube of the gas filtration cartridge 502 is made of aluminium (Al). The metal tube enhances durability and structural stability, ensuring compatibility with high-pressure or high-temperature

[0093]

[0094] environments. Together, this combination improves the system's longevity and performance. The cartridge endcap 102 leverages the flexibility and resilience of the polymeric material to absorb vibrations and minor misalignments during assembly, reducing the risk of damage to cartridge endcap 102 and the gas filtration cartridge 502.

[0095] Modifications to embodiments of the present disclosure described in the foregoing are possible without departing from the scope of the present disclosure as defined by the accompanying claims. Expressions such as "including", "comprising", "incorporating", "have", "is" used to describe and claim the present disclosure are intended to be construed in a non-exclusive manner, namely allowing for items, components or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural. The word "exemplary" is used herein to mean "serving as an example, instance or illustration". Any embodiment described as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments and / or to exclude the incorporation of features from other embodiments. The word "optionally" is used herein to mean "is provided in some embodiments and not provided in other embodiments". It is appreciated that certain features of the present disclosure, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the present disclosure, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination or as suitable in any other described embodiment of the disclosure.

Claims

CLAIMS1. A cartridge endcap (102) of a gas filtration cartridge (502), comprising:a unitary body (104) comprising a contact interface (110) to removably couple the cartridge endcap (102) at an end of the gas filtration cartridge (502),wherein the contact interface (110) comprises one or more angled surfaces (114) configured to be aligned to the gas filtration cartridge (502) when the cartridge endcap (102) is coupled to the end of the gas filtration cartridge (502);an integrated screen portion (116) molded within a portion of the unitary body (104) such that the integrated screen portion (116) is integral to the cartridge endcap (102), wherein the integrated screen portion (116) comprises a plurality of interconnected flow channels (118) with an open area configuration,and wherein the plurality of interconnected flow channels (118) with the open area configuration are configured to allow a controlled gas flow exclusively through the plurality of interconnected flow channels (118) from the end of the gas filtration cartridge (502) when the cartridge endcap (102) is coupled to the end of the gas filtration cartridge (502).

2. The cartridge endcap (102) according to claim 2, wherein the plurality of interconnected flow channels (118) comprises predefined gaps in a defined pattern and size configured to form a barrier for a pre-determined type of cartridge contents.

3. The cartridge endcap (102) according to any of the preceding claims, wherein the unitary body (104) has an inner end (112) and an outer end (106), and wherein the inner end (112) comprises the contact interface (110) and the outer end (106) comprises a protrusion (108) extending from the portion of the unitary body (104) in which the integrated screen portion (116) is molded in the unitary body (104).

4. The cartridge endcap (102) according to claim 3, wherein the diameter of the unitary body (104) of the cartridge endcap (102) is in the range of 130-160 millimetres.

5. The cartridge endcap (102) according to claim 3, wherein the unitary body (104) of the cartridge endcap (102) has a thickness in the range of 10-40 millimetres excluding a length of the protrusion (108).

6. The cartridge endcap (102) according to claim 3, wherein the unitary body (104) of the cartridge endcap (102) has a thickness in the range of 20-60 millimetres including a length of the protrusion (108).

7. The cartridge endcap (102) according to claim 1, wherein the one or more angled surfaces (114) of the contact interface (110) are configured to be aligned to the gas filtration cartridge (502) within a tolerance range of 0.05 to 0.5 degrees when the cartridge endcap (102) is coupled to the end of the gas filtration cartridge (502).

8. The cartridge endcap (102) according to claim 1, wherein a size of the open area configuration of the plurality of interconnected flow channels (118) is in a range of one-third to one-half of the diameter of the cartridge endcap (102).

9. The cartridge endcap (102) according to claim 1, wherein the unitary body (104) is made of plastic, or other polymeric material.