Abstract: A stopper for closing wine bottles. The stopper has a tubular duct to communicate residual interior gaseous atmospheric volume with the outer ambient. A membrane is secured transversely in the duct to allow the passage of gaseous atmosphere through the membrane and to selectively block the passage of liquid therethrough.

Abstract: The present invention provides a culture container and a cap for a container having a ventilation filter medium or a medium similar thereto that can exchange carbon dioxide gas in the culture container with atmospheric air, and prevent the contamination of sterilized culture medium inside the culture container with fungi, mites, and the like. A culture bottle includes a bottle unit, and a cap that is mounted on an opening. The cap includes a cap unit, and a ventilation filter medium. A hole is provided in the cap unit. The ventilation filter medium includes a plurality of micropores having a pore diameter between 0.1 and 50 micrometers, and is mounted on the hole.

Abstract: A reusable filter port assembly is installable on the wall of a sterilizable cultivation bag, such as is used in the cultivation of mushrooms. A grommet and locking collar are removably installed in the wall of the cultivation bag or pouch to provide gas flow communication between the interior of the bag and the ambient environment after the bag is sealed. A removable filter cap holds a filter member over the opening of the filter port assembly to prevent undesired particles from passing through the port of the assembly. In use, the grommet is placed against the interior surface of a bag or pouch, such as a plastic cultivation bag. The collar is screwed down over the grommet from the exterior surface of the bag to form a grommet-collar combination fixed in place to the wall of the bag. Once installed, a patch of bag material of the bag wall is still covering the grommet opening of the neck tube.

Abstract: The invention herein provides a method of treating water in situ to both sterilize the water and remove unwanted odors and tastes produced during sterilization. The water is preferably intended for drinking. The water is sterilized by a sterilizing treatment such as ozonation and the odors are removed by incorporating zeolite into the container cap, a capliner, or both. The invention also provides a container for packaging sterilized water for human consumption.

Abstract: A stopper for closing wine bottles. The stopper has a tubular duct to communicate residual interior gaseous atmospheric volume with the outer ambient. A membrane is secured transversely in the duct to allow the passage of gaseous atmosphere through the membrane and to selectively block the passage of liquid therethrough.

Abstract: A vented closure, for preventing deformation of a container containing a gas evolving liquid, is provided. The closure includes a first closure member and a second closure member. The first closure member seals the container from the outside atmosphere and defines a gas inlet, a gas outlet and a gas flow passage between the inlet and the outlet. A gas-permeable, liquid-impermeable membrane is placed in the gas flow passage. The second closure member is moveably fitted on the first closure member and encases the first closure member with a small clearance fit that allows gas passage. A sealing element coupled to the second closure member is aligned with the gas outlet of the first member so as to block gas flow when a predetermined load is applied to the second closure member and allow gas flow when the predetermined load is absent.

Abstract: There is provided a cap liner including a fluid impermeable layer for venting gas to and from the container and an adhering device for adhering the impermeable layer to a rim of a container and a channel extending therethrough for venting gas therethrough. Also provided by the present invention is a method of sealing an opening of a container by affixing a meltable layer of a sealing member to a container rim and venting the container through a vent patch, meltable layer, a foil layer, and a fluid impermeable layer having pathways thereon.

Abstract: The present inventors have discovered a new vent which can be used in a venting closure and particularly in venting closures for large heavy duty liquid detergent and other liquid laundry product containers. In one embodiment, the vent comprises a wall, a vent opening in the wall, and one or more spacers on the surface of a face of the wall. Most especially the spacers are protuberances, especially rounded protuberances. A liner is adhered to a portion of the surface of the face and spaced from the vent opening by the spacers. The liner is made of a material which permits air to pass through the vent hole, but preferably, the liner material does not permit liquids to pass through the vent hole. In an especially preferred embodiment, the liner is comprised of a tetrafluoroethylene polymer. In a most preferred embodiment the application is also directed to a venting closure.

Abstract: A flexible elastomer closure plug mat presents a plurality of protruding hollow septa closure plugs depending from the mat's lower face. The mat and protruding closure plugs are preferably formed of silicone rubber, with a thick layer of polytetrafluoroethylene or TEFLON® durably bonded to the lower face of the mat and to the outer faces of all of the arrayed plurality of closure plugs. The arrayed plurality of closure plugs are dimensioned for telescoping insertion into the open tops of a corresponding plurality of sample vials held in a well plate, and for frictional engagement therein.

Abstract: A vented closure, for preventing deformation of a container containing a gas evolving liquid, is provided. The closure includes a first closure member and a second closure member. The first closure member seals the container from the outside atmosphere and defines a gas inlet, a gas outlet and a gas flow passage between the inlet and the outlet. A gas-permeable, liquid-impermeable membrane is placed in the gas flow passage. The second closure member is moveably fitted on the first closure member and encases the first closure member with a small clearance fit that allows gas passage. A sealing element coupled to the second closure member is aligned with the gas outlet of the first member so as to block gas flow when a predetermined load is applied to the second closure member and allow gas flow when the predetermined load is absent.

Abstract: A cap for a container housing a consumer product, in the form of a device that is capable of diffusing a volatile substance inside the container. The device includes a cap liner element for carrying the volatile substance and a barrier element, which is lodged between the cap liner element and the interior of the container. The barrier element is formed of a membrane that is permeable to the vapors of the volatile substance but impermeable to the consumer product, so as to enable molecular diffusion of the volatile substance's vapors into the headspace above the consumer product when the container is closed.

Abstract: Disclosed herein are a method of an apparatus for providing a vented closure (10) for a container having complementary non gas-tight features (52, 54) by which the closure may be removeably attached to close the container, by fitting a venting member (12) to form a liquid-tight, gas-venting seal between the closure and the container and provide a venting gas path from the container through the venting member to atmosphere via the complementary closure and container features; the venting member may replace or by-pass the existing sealing member in a closure.

Abstract: A sterile connector for containers holding medicinal liquids comprising a base body with a lower part that can be inserted into the container wall and which can be sealed with respect to the container wall and an upper part equipped with a passage for the liquid. At the lower side and/or the upper side of the base body a barrier module is provided that is an injection molded part with a core made of a material that is essentially impermeable to certain gases and an envelope made of a material of which the base body is made.

Abstract: A low vent pressure master cylinder reservoir cap diaphragm assembly is used to keep brake fluid in the reservoir but allow air to freely pass to and from atmosphere. The diaphragm assembly includes a flexible sealing component having an aperture and a fluid flow restrictive material bonded to the flexible sealing component covering the aperture. The fluid flow restrictive material allows a limited amount of brake fluid to pass through but allows air to freely pass through. The flexible sealing component is preferably made from a rubber material. The fluid flow restrictive material is preferably made from a material such as nylon that is either mesh or has small pores.

Abstract: A sealed container opening, intended for fluid communication with a container for storing medical fluids, comprising a tubular sleeve-formed part (22, 22A) having a resilient pierceable stopper (24, 24A) inserted in its mouth (21, 21A) and a covering sealing device (10, 10A). The sealed container opening contains the same autoclavable polyolefinic material as the container. All parts of said container opening, exposed to the fluid or fluid handling devices are sterilized in a single process by means of steam transferred to these parts during its autoclavation. Saddle formed port systems attachable to a flexible containers are also disclosed.

Abstract: A venting cap (1) has a cavity (7), at least one first passage (4) for fluids connecting the cavity (7) with the inside of the container, at least one second passage (5.1, 5.2, 5) for fluids connecting the cavity (7) with the outside of the container, and a liquid-absorbing mass (8) arranged within the cavity (7). The liquid-absorbing mass (8) acts, after absorption of liquid, as a selective filter prohibiting the passage of liquid, but permits the passage of gas. This ensures the foolproof selective permeation of gas but not of liquid. Venting properties remain unaltered even at extreme conditions of transportation and storage.

Abstract: A container having a closure comprising a closure wall having a puncturable region in communication with the interior of the vessel, and having on an inwardly facing region of the closure wall a desiccant material separated from the interior of the vessel by a semi-permeable membrane which permits transmission of water vapor therethrough but is substantially impermeable to liquid water.

Abstract: The present invention relates to a container, or a cap for a container for viscous liquid products. The container or the cap comprises a venting element. The venting element allows passage of gases between the interior and the exterior of the container when the pressure inside the container differs from the external ambient pressure. The container or cap further includes a control feature which controls the phase separation of the product splashed onto the membrane.

Abstract: A closure (20) for sealing a micro-organism container (50) is disclosed. The closure (20) includes a resilient seal (24) for sealing the container (50), a passageway (26) extending through the seal (24), or filter media (28) extending across the passageway (26) integrally molded to the seal (24) for allowing sterile gas exchange therethrough. A method of making a flask closure (20) is also disclosed. The method includes molding a sealing member (24) having a port (26) extending therethrough while simultaneously sealing a peripheral edge (31) of a filter media (28) within the passageway (26).

Abstract: A reservoir including a housing having a chamber formed therein for the storage of hydraulic brake fluid. The chamber is in fluid communication with a master cylinder. The housing has an opening which is in communication with the atmosphere. The housing further including a passageway in communication with the cavity and the opening. A membrane is disposed in the passageway of the housing. The membrane has oleophobic properties such that the membrane permits the passage of air therethrough and substantially prevents the passage of brake fluid therethrough.

Abstract: A container assembly provided with an antibacterial agent against “slow-leak” bacteria, comprising a container such as a plastic bottle which has a mouth portion having a rim; and a seal member such as a crown cap fitted to the mouth portion at the rim, wherein at least either a surface portion of the rim or the rim-contacting surface portion of the seal member includes an antibacterial agent such as silver zeolite in the form of a coating or a liner, thereby effectively blocking the entry of unwanted live bacteria and eumycetes which may enter the interior of the container assembly due to slow-leak.

Abstract: A closure (20) for sealing a micro-organism container (50) is disclosed. The closure (20) includes a resilient seal (24) for sealing the container (50), a passageway (26) extending through the seal (24), or filter media (28) extending across the passageway (26) integrally molded to the seal (24) for allowing sterile gas exchange therethrough. A method of making a flask closure (20) is also disclosed. The method includes molding a sealing member (24) having a passageway (26) extending therethrough while simultaneously sealing a peripheral edge (31) of a filter media (28) within the passageway (26).

Abstract: A vented flask cap having a body portion with proximal and distal ends with a generally cylindrical sidewall extending from the proximal end to the distal end of first and second support plates are formed at the proximal end of the body portion and having a plurality of apertures extending therethrough; a filter assembly is also provided which includes a first, lower membrane having a first porosity, a second, upper membrane having a second porosity and a radiation absorbing material disposed between the first and second membranes.

Abstract: An adaptor cap for a container. The adaptor cap includes a skirt constructed to engage a fluid container and to retain the adaptor cap on the fluid container. The adaptor cap further includes a dome projecting outwardly from said skirt. The dome defines an interior chamber. The dome further defines a spike port providing fluid communication between the chamber and an exterior environment of the dome, the spike port being constructed to receive and retain a hollow spike therein. The dome also defines at least one vent aperture therethrough, the vent aperture providing fluid communication between the chamber and the exterior environment of the dome. The adaptor cap further includes a microbial filter mounted on the dome across the vent aperture.

Abstract: A lid is disclosed having a pressure compensation device comprising a gas permeable, liquid impermeable membrane and a surge protection element comprising a gas permeable material which serves to break the surge pressure exerted on the membrane by the container contents. The lid is designed as an injection molded plastic part with the membrane being integrated in an upper cover portion of the lid by injection molding.

Abstract: A disposable plastic lid is formed with a vent hole. A filter formed of a hydrophobic material such as polytetrafluoraethylene is mounted over the vent hole. The pore size of the filter material is selected to allow for the free passage of air and to inhibit or block the passage of liquids such as water.

Abstract: A vented closure is provided in which a PTFE membrane layer comprises a vent for releasing accumulated gas pressure. The membrane is carried on a structural support which may vary from a fabric type backing to a porous plastic stem, the support permitting a variety of improved vent architecture to be utilized including vents with reduced material requirements, improved geometry, and better handling characteristics.

Abstract: A container having a closure comprising a closure wall having a puncturable region in communication with the interior of the vessel, and having on an inwardly facing region of the closure wall a desiccant material separated from the interior of the vessel by a semi-permeable membrane which permits transmission of water vapor therethrough but is substantially impermeable to liquid water.

Abstract: The present invention is a venting cap (1) with a hole (4) and a semi-permeable membrane (7). The membrane is fitted in a housing (6) of particular dimensions which is in turn fitted in a protrusion (5) corresponding to the hole in the cap. The present invention further encompasses a process for the manufacture of the cap.

Abstract: The present invention is a pressure equalizing and foam eliminating cap for a container. Pressure equalization and foam elimination is accomplished by designing the cap so that it can be rotated between a fully closed position, a gas venting position and a fully open position. This is accomplished in several ways. A first embodiment includes a spring biased, gas separation membrane between the cap and the mouth of the container. A second embodiment includes a finely, transversely perforated, annular plug on the underside of the cap and a seal between the plug and the interior of the neck. Alternatively, in this embodiment, the perforations may be larger and protected by a gas separation membrane. A third embodiment is similar to the second but incorporates two seals, one above and one below the perforations. In this embodiment also, the perforations may be larger and protected by a gas separation membrane.

Abstract: A dual cap lining for bi-directional venting comprising a substantially round, disc-shaped, laminated, fluid-impermeable, gas-permeablematerial bottom layer, and having an extruded and cast polyethylene material top layer which is provided with apertures which communicate with the bottom layer and also communicate with channels provided on the upper surface of the top layer, and the material of construction of the laminated bottom layer is gas-permeable such that the dual lining allows bi-directional gas flow therethrough, for gases which have built-up in the interior of the connected container to safely escape by venting from the interior of the container to the external ambient atmosphere through openings existing between the spiral screw threads of the cap closure and threads of the container neck, and the reverse venting to equilibrate for relatively increased external pressure, without passage of solid or liquid material from the interior of the container through the lining to the closure and to the exte

Abstract: Rigid container structure for hermetic sealing of particulate solids which emit an off-gas during containment. Provisions are made for enclosing chamber space with a gas-permeable imperforate membrane film so as to selectively separate and retain an off-gas out of contact with container contents. In a specific embodiment, carbon dioxide is selectively separated from coffee contents while the entire container, including such enclosed chamber as established, is hermetically sealed from ambient atmosphere. Provision is also made for venting of a separated off-gas in initiating a rupture of an end closure structure prior to full opening of the container. That arrangement further diminishes the opportunity for inadvertent discharge of particulate solids due to expulsion of gas from inert gas purging and from gas emitted during hermetic sealing.

Abstract: A container suitable for containing and dispensing fluid materials comprising a hollow body wherein said container comprises a sealing and venting system consisting of a perforated area (4) comprising one or more perforations of the container in combination with a fluid-impermeable but gas-permeable membrane applied to said perforated area (4) such as to provide a liquid-impermeable sealing means (1) and gas-permeable venting means characterized in that said membrane is treated to reduce its surface energy.

Abstract: An improved adaptor and protector for same which is removably sealing an opening of the adaptor located at an end of a tubular member. The adaptor has a longitudinal passageway for receiving a cannula. An upper end of the adaptor has an interior diameter defining a first end of the passageway for receiving the cannula. A lower end of the adaptor has an interior diameter defining a second end of the passageway adapted for receiving an injection site wherein the diameter of the first end is larger than the diameter at the second end. A middle portion intermediate the first end and the second end has a tapering interior diameter for directing the cannula to the injection site and further having an exterior surface with gripping surfaces. The tapering interior diameter of the middle portion of the adaptor includes guiding members to direct the cannula or other injection devices. The adaptor may also be provided with a protector removably sealing an opening located at an end of the adaptor.

Abstract: A dual cap lining for bi-directional venting comprising a substantially shaped, laminated or secured, fluid-impermeable, gas-permeable material bottom layer congruent with a container opening, and having an extruded and cast polyethylene material top layer which is provided with channels on the lower surface of the top layer, and the material of construction of the laminated bottom layer is gas-permeable such that the dual lining allows bi-directional gas flow therethrough, for gases which have built-up in the interior of the connected container to safely escape by venting from the interior of the container to the external ambient atmosphere through openings existing between the spiral screw threads of the cap closure and threads of the container neck, and the reverse venting to equilibrate for relatively increased external pressure, without passage of solid or liquid material from the interior of the container through the lining to the closure and to the exterior of the container.

Abstract: A cap for a storage jar or the like for hospital use in storing syringe needles preparatory to disposal, in the construction of which alternating discs of steam permeable construction material and non-needle puncturable construction material, the latter with steam passageway openings, are embodied in the cap so that the syringe needles can be steam autoclaved through the cap, moving through the steam permeable discs and the steam passageway openings of the other discs, so as to sterilize the stored syringe needles, and the steam passageway openings are held out of register or alignment with each other so as to prevent projection of any stored syringe needle out of the jar and coming into contact with a hospital employee or other individual.

Abstract: A closure for providing selective access to and for closing a cell culture vessel includes an open cylindrical first portion for attaching the closure to the cell culture vessel. The first portion includes a passageway for access to the vessel. The closure includes a second portion attached to the first portion by a hinge for closing the access passageway. The second portion additionally includes a vent which has a porous membrane covering it to prevent passage of microorganisms through the vent. The closure includes a third portion which is attached by a hinge to the second portion for closing the vent. Either the vent or the access passageway may be opened with one hand providing easy access and selective closure of the cell culture vessel.

Abstract: An infant feeding bottle that is nipple-equipped at one end that is further equipped with a pressure equalizing apertured diaphragm member at the opposite end. The diaphragm member allows room air to pass therethrough into the air space in the bottle when the bottle is inclined and liquid is withdrawn through the nipple, thereby equalizing the interior air pressure. The diaphragm member is gas and liquid tight when the inside and outside pressures are equal and the bottle is in an upright configuration with the feeding liquid resting on the diaphragm member. The diaphragm member has a central portion which is dome configured and provided with apertures that are in a sealed shut configuration when the diaphragm member is relaxed yet that are opened when the diaphragm member is expanded responsive to differential air pressure.

Abstract: A closure unit for a container for storing and handling flowable products is made from at least two different thermoplastic materials, the different materials fulfilling different functions. A basic thermoplastic material (A.2) is used for sealing against the container (G.2), and an area made of another different thermoplastic material (B.2,C) is provided to fulfill additional sealing functions, to increase mechanical stability, to have a reduced permeability, and to provide increased elasticity for additional opening and closing and/or absorption characteristics. The closure unit is produced by a multimaterial injection molding process, so that contact surfaces between the different thermoplastic materials can be interconnected by reversible or irreversible positive engagement and/or by more or less pronounced melting into one another. The closure unit is in two parts and comprises a pouring part (1.2) and a closure part (2.2), or is in one part.

Abstract: A closure device for fermentation test tubes or flasks (vessels) comprises a cylindrical cap which is either molded integrally with the vessel as one piece or is molded separately and is snugly fitted over the neck of the vessel, in a fashion which not only allows for free gaseous flow between the contents of the vessel and the ambient atmosphere but also facilitates easy access to the contents of the vessel without having to detach the closure from the vessel. Particular features of the cover permit manipulation with the fingers of the hand holding the vessel. Embodiments disclosed include those adapted to function selectively in aerobic or anaerobic procedures.

Abstract: A vessel and closure assembly for culturing mammalian cells wherein a gas permeable membrane is provided in the closure to allow rapid and uniform equilibration of gases between the atmosphere of the vessel and the atmosphere of an incubator. Removable thin impermeable film labels are provided for allowing passage of gases through the gas permeable membrane for uniform equilibration between the atmosphere in the closure and the atmosphere of the incubator as well as for occluding passage of gases through the gas permeable membrane when the vessel is removed from the controlled atmosphere of the incubator.

Abstract: An apparatus is provided for continuous and regular liberation of active constituents into domestic water supplies. The apparatus comprises a receptacle having a body portion which is impermeable to water and to the active constituent. The receptacle is provided with an aperture closed by a membrane which is permeable to water and to the active constituent. An operculum surrounds the membrane to secure the membrane to the receptacle. The active constituent is provided into the receptacle and is released through the membrane in a controlled manner over an extended period of time. Preferably, the membrane has a mean pore diameter greater than 0.05 microns.

Abstract: A closure device for a front side of an in particular evacuable cylindrical housing comprises a cap surrounding said front side of said housing with a front wall in which a borehole is arranged. A sealing device is arranged between the borehole and an internal cavity of the cylindrical housing. The cap is connected to the sealing device and/or the cylindrical housing by means of a coupling device.

Abstract: A pour spout for pouring a fluid, such as fuel, by gravity from a container to a tank. The spout includes a conduit having one end connected to the fuel container and having a second end to be positioned within the neck of the tank. A sleeve is mounted for sliding movement within the conduit and the outer end of the sleeve carries a closure which closes off the discharge end of the conduit. A seal is incorporated to prevent the entry of foreign particulate material into the sliding interface formed between the conduit and sleeve. The seal is provided by an annular skirt which overlaps with an annular flange together with an annular jacket of resilient foam material surrounding the sleeve and conduit at the location of the sliding interface.

Abstract: Over thirty years of frustrations associated with the inadequate performance of "coffee mugs" that were adapted for use as "shaving mugs" prompted my development of a true SHAVING MUG designed specifically to hold a typical shaving soap cake in a manner that is convenient to the user. A shaving mug made in accordance with this patent application will:a. Hold the soap cake secure enough to prevent dislodging during use, cleaning, or even rough handling.b. Protect the soap cake from contamination.c. Prevent soap or water residue from leaking out during storage.d. Permit the soap cake to dry quickly between use.e. Not break easily.These attributes represent significant design improvements resulting in a shaving mug designed specifically for brush type shaving lather products and clearly corrects the deficiencies of the existing mugs.

Abstract: A pressure equalizing membrane made of gas permeable, water impermeable polytetrafluoroethlyene is preassembled to a retaining ring and the ring retained within a housing wall with a watertight seal. Either a one or two part retaining ring is used as a holder for the PTFE membrane. The retaining ring is provided with at least one circumferential elastic sealing lip about its periphery for providing a press fit of the membrane and retaining ring assembly into the housing wall opening, and for providing a watertight seal about the membrane.

Abstract: A closure device for connection to a fluid container which has an opening for receiving the device. The closure device has a base section which may sealably cover the container opening. The base section has a spike receiving opening passing there through with at least one air vent on the base section which is spaced from the spike receiving opening. A hydrophobic air filter, is associated with the air vent. Adjoining the base section is an internal cover, which lies over the aperture, covering it and the base section. The internal cover has a pierceable portion which is in alignment with the spike receiving opening of the base section.

Abstract: A cap for a flask includes a top portion; an inner collar extending downwardly from the top portion for insertion into the mouth of the flask; an outer collar spaced from the inner collar and extending downwardly from the top portion for covering the lip of the flask; detent means on the inner surface of the outer collar extending inwardly to positively engage the lip of the flask and sealingly engage the cap with the mouth of the flask; and a permeable section in the top portion within said inner collar for enabling exchange of gases in the flask.

Abstract: A bottle assembly for storing and retailing a liquid substance such as fabric bleach that generates gases when it is heated or contaminated. The bottle of the assembly has a neck on which a closure cap may be screwed. The neck is closed by a peelable seal made of porous plastic foam such as polystyrene, which is fixed by a pressure adhesive across the neck and sized so as to be easily graspable and peelable with two fingers with a reduced risk of contact with the substance within the bottle. Another seal made of the same porous foam is freely mounted within the cap to allow the bottle to be sealed again in a permanent manner after the peelable seal has been removed. Both seals prevents the bottle from bulging and from leaking if it is inadvertantly knocked over.

Abstract: Compositions of matter, sheet material, and packages made therefrom. Novel compositions of polypropylene and high density polyethylene are useful as sealant materials for flexible sheet material structures wherein the sheet material is sealable to a preformed container, to form a lid therefor, and is peelable therefrom, with cohesive failure of the sealant layer in the area of the formed seal. The novel sealant layer compositions provided for package closure and sealing which is capable of withstanding retort conditions while maintaining the integrity of the package closure and seal. Concurrently the lid is readily peeled from the package to provide access to the interior of the package. The peelability comprises cohesive failure of the sealant material in a novel blend of a polypropylene polymer with an ethylene polymer having a density of at least 0.940.