11874results about "Closures" patented technology

The present invention relates to a droplet microreactor, i.e. a microreactor consisting of a droplet of a specific liquid, the microreactor being wall-less, wherein the interface of the specific liquid with the ambient environment and with the support on which the droplet is deposited defines the limits of the microreactor. The microreactor is characterized in that it consists of a droplet comprising at least one ionic liquid. The present invention also relates to methods for carrying out chemical or biochemical reactions and / or mixes using said droplet microreactor, and also to a lab-on-chip comprising a microreactor according to the invention.

The package generally includes at least one front and back panel joined at least partially together to define an interior accessible through an access opening. The interior is capable of storing and dispensing product and other objects or materials. Further, at least one web member can be joined to each of the front and back panel portions respectively to form at least two generally parallel chambers and / or channels that extend generally along at least a portion of the access opening. In one embodiment, each of the chambers includes a reservoir or storage portion and a closure portion in fluid communication such that either the reservoir portion or the closure portion are generally inflated or expanded to correspondingly close or open the access opening.

A cartridge connectable to a fuel cell is disclosed. The cartridge comprises an outer casing and an inner flexible liner containing fuel for the fuel cell. The inner flexible liner may have an insert disposed inside the inner liner to facilitate the transport of fuel from the cartridge to the fuel cell. The insert minimizes the fuel that is trapped within the cartridge. The inner flexible liner can be used without the outer casing. The outer casing can be substantially rigid or flexible. The cartridge is also adaptable to receive byproducts from the fuel cell. The cartridge can also be pressurized to push fuel to the fuel cell. Unidirectional relief valves are also disclosed to prevent internal pressure in the cartridge from becoming too high or too low.

A container for dispensing a product is provided, the container including an outer casing body having a cavity; a dispensing tray adapted for sliding movement within the cavity of the outer casing body between a closed and locked position and a dispensing position, the dispensing tray having an internal storage compartment for storage of a plurality of units of a product to be dispensed, a dispensing window, and a stop for engaging the outer casing body to prevent removal of the dispensing tray from the cavity; and a locking mechanism for releasably locking the dispensing tray in the cavity, the locking mechanism including protrusions projecting from the outer casing body into the cavity and positioned adjacent to a moveable flap formed in the outer casing body, and recesses carried by the dispensing tray and positioned to engage the protrusions when the dispensing tray is in the closed and locked position.

An apparatus, system and method for regulating fluid flow are disclosed. The apparatus includes a flow rate sensor and a valve. The flow rate sensor uses images to estimate flow through a drip chamber and then controls the valve based on the estimated flow rate. The valve comprises a rigid housing disposed around the tube in which fluid flow is being controlled. Increasing the pressure in the housing controls the size of the lumen within the tube by deforming the tube, therefore controlling flow through the tube.

A structural reinforcement for a hollow member comprising a rigid reinforcing member having a shape that substantially conforms to the cross section of the hollow member to be reinforced with an expandable adhesive material over at least a portion of the surface of the structural reinforcement having one or more extensions on its external surface which control and direct the direction in which the adhesive material expands to bond the reinforcing member to the internal surface of the hollow member, some of the extensions also provide improved reinforcement.

A single use unit dosage dispensing closure includes a shell attached to a container with an integral piecing member, an axial movable cap attached to the shell and a sealing member coupled to the cap. The shell has an inner guide in communication with the container and the cap is moveable along the guide. The cap has a chamber adapted to dispense material into the container. The chamber is sealed with the sealing member extending across a lower open end thereof, wherein axial movement of the cap along the inner guide member will cause the sealing member to be pieced by the piercing member to open the chamber and dispense the contents of the chamber into the container. The axial movable cap is formed from a material with a higher oxygen and moisture barrier property than the material forming the shell.

An apparatus, system and method for regulating fluid flow are disclosed. The apparatus includes a flow rate sensor and a valve. The flow rate sensor uses images to estimate flow through a drip chamber and then controls the valve based on the estimated flow rate. The valve comprises a rigid housing disposed around the tube in which fluid flow is being controlled. Increasing the pressure in the housing controls the size of the lumen within the tube by deforming the tube, therefore controlling flow through the tube.

A method for contamination-free transfer of liquid from one container to another, and devices to carry out the method are disclosed. Contamination-free transfer means that during the transfer process there is no (1) leakage of (a) the liquid, (b) air contaminated by the liquid, and (c) vapor from the liquid to the surroundings, and (2) surrounding contaminants from outside the containers that contact the liquid. The method's advantages include its simplicity, and the contamination-free transfer as defined above. The devices are adapted to effect contamination-free transfer of a hazardous drug to and from any container equipped with a standard connector port.

An improved outlet tube device for a urinary drainage bag is disclosed wherein an outlet valve mechanism is contained with a rigid housing fixed securely to the drainage bag, rather than just being clamped to the outlet tubing, and thus cannot become separated from the bag. The outlet valve can be opened only by positive action on the part of the medical care personnel, thereby assuring that urine will be discharged only in a controlled manner. Further, because the valve mechanism does not require that a substantial length of tubing with a freely movable end be used in conjunction with the outlet port, there is no need to engage the free end of the tubing with a keeper. Thus the possibility of the tubing springing back to its straight configuration and flicking residual urine on the attending medical personnel is eliminated. In one embodiment the outlet tube device comprises a pinchcock-type valve which is fixedly mounted to the bag and which is normally operative to clamp off the outlet tube. In a second embodiment the outlet tube device comprises a syringetype fitting which is fixedly mounted to the bag. Depressing the syringe plunger closes the valve, and retracting the plunger opens the valve to permit fluid to be discharged through the outlet tube. In a third embodiment, a hose clamp is contained within a rigid housing and is selectively operative to clamp a hose to prevent fluid flow therethrough.

This invention relates to resealable closure systems that are useful in containers, such as those used in packaging goods. The reclosure system features cohesive layers which are bonded to each other to provide a resealable closure. The cohesive bond layers are separable to provide opening of the container and access to the interior of the container and / or contents. The cohesive layers have low blocking characteristics. The reclosure systems are useful for flexible packaging, such as polymeric film and cloth packages, and rigid packaging, such as fiberboard, cardboard, paper, and polymeric foam. The reclosure systems may be opened and resealed multiple times. The closure system is resistance to contamination by oils, debris, solvents, and water. The reclosure is cold sealable with finger pressure.

The present invention is directed to a pliable package that is tear resistant, requires a greater degree of dexterity to open, and prevents accidental discharge during or after opening of the package. The package includes a flexible, liquid storage reservoir having a funnel-shaped outlet passageway leading to a opening. The package also includes a reinforced tear resistant tab portion that may prevent accidental discharge of liquid when the tab portion is bent about the score line. The funnel-shaped outlet passageway may be shaped to allow the liquid to be dispensed in a controlled manner.

A locking container has a tray with sidewalls, a shelf and a bottom with an elongated opening. A sliding lock and a spring are formed in the bottom opening. A lock flap is hinged to the shelf. A cover has a base glued to the tray bottom, a spine end and a top panel. A latch extension extends form the flap through holes in the shelf and top panel. Sliding the lock with a finger or thumb and lifting with fingers both side sections of the flap releases the latch extension and allows raising of the top panel. Articles are held in bubbles of an inner laminate on the panel.

A collapsible, soft-sided, insulated cooler or other container having a top, a sidewall having a sidewall top connected to the rim of the top and a bottom connected at a sidewall bottom, opposite the top. The top includes a zipper or other closure that extends from a first point to a second point on the rim of the top in a line along a radial segment, traversing a central region of the top. The sidewall comprises an inner layer, an outer shell and an insulating material disposed therebetween. The sidewall further includes a spring wire that extends between the bottom and top of the container that biases the cooler to a fully expanded configuration for use and that is compressible for storage by pressing down on the top.

A reagent dispensing valve particularly adapted for dispensing precise microfluidic quantities of fluids. The valve includes a valve portion and a solenoid actuator that are in fluid isolation from one another. The valve portion includes a plunger and seat combination and the actuator is substantially decoupled from the fluid path through the valve. The fluid path through the valve is substantially non-tortuous, thereby minimizing localized fluid pressure drops, and hence undesirable gaseous bubble precipitation within the fluid. The valve is also configured to substantially prevent bubble accumulation. The valve can further include a bubble trap for trapping and removing bubbles.

A mixing apparatus, puncturing mechanism, and cartridge are disclosed. The mixing apparatus has a housing and a drawer with a recess. Corresponding cartridges may be inserted into the drawer and slid into the housing to facilitate mixing a liquid with contents of the cartridge. The liquid may originate from a reservoir in the mixing apparatus or a direct line. Also inside the housing of the mixing apparatus is the puncturing mechanism. The puncturing mechanism has a nozzle configured to puncture a lid of a cartridge and inject liquid to mix with the contents of the cartridge. The puncturing mechanism is further configured to drive an internal puncturing unit inside of the cartridge through a lower portion of the cartridge to allow liquid from the nozzle and contents of the cartridge to be dispensed into a receptacle.

A one-piece re-sealable sealing device (210) for use with a container (212), operable between a closed position and an open position in which, when the sealing device (210) is in the closed position it forms a folded shape comprising an upper part (240), a middle part (230) and a base part (220), hinged together. The sealing device (210) further comprises a lever (245,226,224) both for levering the sealing device (210) from the closed position to the open position, and for pivoting the sealing device (210) from the open position to the closed position to re-seal the container.

A water-based coating composition suitable for preparing hydrophilic surfaces on various articles is provided which includes a supporting polymer having functional moieties capable of undergoing crosslinking reactions, said supporting polymer soluble in or emulsified in an aqueous based medium; and a hydrophilic polymer, said hydrophilic polymer associated with the supporting polymer. The composition is characterized in that, when crosslinked at the functional moieties, the supporting polymer forms a three-dimensional network which substantially minimizes disassociation of the hydrophilic polymer.

The invention relates to a combination of a first container and a second container to form a dispensing unit. The first and second containers each have a reservoir for a liquid substance and pump which is secured to the reservoir, can be actuated by hand and has a dispensing opening and a pump-actuating button for dispensing substance from the reservoir. The combination also comprises coupling means for coupling together the first and second containers in a position next to one another. The invention is characterized in that the coupling means comprise: one or more first coupling members, which are each arranged on the first container, and one or more second coupling means, which are each arranged on the second container and which can each be directly coupled to an associated first coupling member on the first container. It is preferable for a first coupling member and an associated second coupling member each to be arranged fixedly on the assembly of reservoir and pump of the associated container in order to create a stable coupling between the assemblies reservoir and pump of the two containers.

A container assembly and method for storing, treating, transporting and stabilizing a biological sample includes a container, a closure member and a sample holder removably received in the container. The sample holder can be a platform-like device dimensioned to be supported on a ledge formed in the side wall of the container. The sample holder includes a central cavity for receiving the sample and immersing the sample in the stabilizing agent in the container. The closure member includes a body member to close the top end of the central cavity of the sample holder and to limit movement of the sample holder in the container. In another embodiment, the sample holder has a closure cap for closing the open top end of the cavity. The container includes a liquid reagent in an amount sufficient to treat the biological sample. The biological sample is retained in a predetermined containment area of the container to maintain the biological sample immersed in the reagent without regard to the orientation of the container.

Provided is a sensor operative to track changes in a liquid level of a hand-held liquid container, the sensor comprising: an ultrasonic liquid-level sensor configured to indicate a liquid level of a liquid in a hand-held liquid container, wherein the ultrasonic liquid-level sensor is capable of indicating the liquid level when the surface of the liquid is less than 20 centimeters away from the ultrasonic liquid-level sensor; a radio transmitter; and a processor configured to draw power from a portable power source, receive liquid-level indications from the ultrasonic liquid-level sensor, and cause the radio transmitter to transmit data indicative of changes in the liquid level.

The invention pertains to an emptying device for large-volume receptacles which consists of an auxiliary transport apparatus that is composed of at least four uprights, on the lower ends of which one respective stacking leg is arranged and in the lower end of which one respective lifting mechanism is arranged. This lifting mechanism can be connected to the carrying straps of the large-volume receptacle by means of carrying strap holders, wherein the uprights are respectively connected to one another by means of transverse braces in their lower region in order to accommodate a bottom plate. The bottom plate contains a central opening for accommodating a shutter mechanism with a shutter that is situated in a base plate arranged on the bottom plate and can be actuated by means of a hand crank.

The tamper-evident closure is provided for a syringe with a Luer connection or a Luer lock connection, wherein at least the connection end consists of plastic. A cap which is connected to the syringe via at least one frangible web. The cap and the frangible web together with a fixation component are formed as one piece as a plastic injection molded part and are connected to the connection end of the syringe by way of welding.