Abstract: A refillable compressed gas capsule, in particular, for household uses and for compressed-gas hand-operated devices, includes a valve body pretensioned by a spring and slidably held against a valve seat by the inner pressure of the compressed-gas capsule and against the pretension towards the interior of the capsule, which body is held in a holding means inserted into an opening provided in the face side of the capsule limiting the opening path of said valve body and comprising at least one opening leading into the interior of the capsule. In order to produce such a compressed-gas capsule in a very simple manner, it is provided that the holding means and the valve seat are held at least indirectly by an inwardly directed flanged edge of the capsule.

Abstract: A closure accommodating internal pressure build-up in a container. The closure includes a cover, the top wall of which which is provided with a small orifice. A flexible plastic film lid or patch is sealed over the orifice by sealant such as adhesive or heat-seal. The patch may also be sealed by welding. The sealant may be pressure sensitive. When pressure within the container reaches a predetermined level, a small channel will form in the patch and gases will be released. The orifice may include pre-formed V-shaped venting notches in its top edge to direct gas pressure.

Abstract: In a system comprising a container and a liquid contained therein that builds up a gas or vapor pressure, a sealing valve having a concave shaped portion and a slit extending through said portion, allows venting of the vapor from the container to the ambient at a predetermined vapor threshold pressure. The vapor threshold pressure at which the slit opens for venting can be adjusted by valve restraining means which are preferably formed by a protrusion at the inside of a cap covering the sealing valve. The vapor threshold pressure at which venting takes place, can to a large extent be adjusted without affecting the dispensing characteristics of the valve.

Abstract: An evacuation system for unlidded rigid containers including a reciprocating piston pump and a universal disc that provides a leak proof lid for ordinary pots, pans or bowls. The disc is flat and accommodates a variety of container sizes as well as minor surface irregularities in the container lip. Vent holes spaced around the perimeter of the disc prevent implosion of the disc into the container if the disc edge is placed too close to the edge of the container. The disc is somewhat flexible and has a sealing surface on one side for proper seating and sealing on the container lip.

Abstract: An improved bottle cap device formed so as to have a positive sealing arrangement for use with bottles that store gaseous fluid such as soda water and like beverages, wherein the bottle cap device includes a threaded cap body and a hinged cover or lid that is formed having a sealing annular structure which compresses an annular gasket against the mouth of the bottle by a depending convex wall that engages a gasket mounted when the cover is locked in a close sealed position and a pressure release latch for limiting the movement of the hinged cover after it is unlocked from the cap body to relieve pressure within the bottle.

Abstract: A closure with repressurizing apparatus for a carbonated beverage container used as an original factory closure cap or as a replacement to the factory closure. An internally threaded closure which is secured to seal the mouth of a container is combined with a pump cylinder and a hand operated air pump to repressurize the container. The pump cylinder is molded with one or more internal ridges that extend from the base of the pump cylinder to approximately three quarters the length of the pump cylinder. A valve is created when this ridge(s) interacts with the corresponding notch(es) formed on the base of the piston. The valve allows ambient air past the base of the piston only when it is above the ridge(s) on the pump cylinder.

Abstract: An apparatus and method for introducing a gas under pressure into a container of liquid having a cap. A hole is punched through the cap. A hose, having an end, is extended through the hole to the inside of the cap, and the check valve tube forced into the hose from inside the cap. The tube forces the hose outward against the surface of the hole preventing leakage. A gas under pressure will be retained in the container by the check valve.

Abstract: A high temperature, high pressure chemical digestion vessel comprising an inner container which fits within an outer casement. Tapered walls of the inner container define an air gap which insulates against excessive heat transfer between the inner container and the outer casement during high temperature and pressure digestion. The container is provided with a vent. A replaceable, rupturable pressure release disk is provided having a predetermined rupture pressure for being sealingly interposed in covering relation to the vent to seal the container and thereby enclose a substance to be digested in the container. The disk ruptures and releases pressure within the container if pressure within the container reaches the predetermined rupture pressure. The pressure release disk comprises a flat sheet material. A seal cap is provided for holding the pressure release disk in sealing relation to the vent in the container.

Abstract: A closure cap for a bottle having an external bead projecting from its neck. The cap is secured to the bead by an annular retaining part. A sealing disk is disposed beneath the cap-like retaining part, the periphery of which seals against the upper edge of the bottleneck i.e., the mouth of the bottle. An elastic member biases the sealing disk against the bottleneck. The sealing disk will lift off the bottle mouth to relieve any excess pressure generated by the contents of the bottle. A stop projecting from the retaining part defines the space between the cap and the neck to control the biasing force of the elastic member.

Abstract: A bottle cap assembly it is described which includes a hollow cylindrical body adapted to be fastened to the neck of a soda water bottle to seal the top opening thereof, a valve seat having valves to seal an outlet hole on the hollow cylindrical body, a division plate to hold said valve seat in place, a cap retained on said hollow cylindrical body and a bellows within said body retained by the cap. The device functions when the cap is pressed which causes outside air to be compressed and fed into the soda water container to pressurize the same. A release of the cap causes an expansion of the bellows which readmits outside air into the bellows without releasing the contents of the soda water bottle.

Abstract: A high temperature, high pressure chemical digestion vessel comprising an inner container within which digestion is to take place under high temperature and high pressure conditions. The container is provided with a vent. A replaceable, rupturable pressure release disk is provided having a predetermined rupture pressure for being sealingly interposed in covering relation to the vent to seal the container and thereby enclose a substance to be digested in the container. The disk ruptures and releases pressure within the container if pressure within the container reaches the predetermined rupture pressure. The pressure release disk comprises a flat sheet material. A seal cap is provided for holding the pressure release disk in sealing relation to the vent in the container. An outer pressure resisting-casement is provided for receiving the container therein and providing support to the container.

Abstract: A suction device suitable to create a vacuum in containers particularly for the preservation of food in a vacuum, consisting of a casing formed by two coupled halves (4, 5) that contain an electric motor (7) that actuates a suction pump formed by a cylinder-piston unit (14, 15), by means of a reducer group formed by a pinion (17) force-fit onto the shaft (16) of the motor (7) and by a crown gear (19) having an eccentric (37) which actuates a connecting rod (23) connected to the piston (15). The device has at one end a holed tip (34) which can be pluged directly in the seating of the valve (3) that is provided on the container, so that it can be used with one hand only.

Abstract: A resealable conduit is used to remove or add fluid to a closed system without coring or contamination of the fluid. The conduit can include funnel-shaped guide means, duck bill valve means and beveled tip puncturing means. A conduit resting angle of less than about five degrees can be achieved. A tip bevel angle between about ten and twenty degrees is preferred. The beveled tip can have a rotated or twisted blade surface extension. A blade surface extension formed with a ninety degree rotation of the blade surface is preferred. Alternately, the puncturing means can include a needle point or a flat cutting surface.

Abstract: A device for aerating liquids in containers is described, which may particularly be useful for the aeration of wines before consumption. The device comprises a base element to rest on the container, a tube attached to the base element and depending into the container, and means defining a variable volume above the base element and communicating with the tube. The device operates by manual expansion of the variable volume means, which preferably comprises a cylinder, the base element comprising a corresponding piston, followed by gradual reduction of the volume to force air through the tube and into the liquid.

Abstract: A cap device to be mounted to a mouthpiece of a container, in one aspect, comprises a cap member provided with an inner hollow portion and a film member accommodated in the inner hollow portion. The film member has a laminated structure composed of at least one metal including layer and a fusing layer abutting against an open end face of the mouthpiece mounted to the container. The cap device mounted to the mouthpiece is sealed by heating the film member by the high frequency induction heating treatment to fuse the fusing layer at the open end face of the mouthpiece. After the sealing, the cap device is removed and a connector means is connected to the mouthpiece and a pressure is applied to break the film member to establish the communication between an interior of the container and a connection line.

Abstract: A low pressure relief valve made of elastomeric material is capable of relieving pressure in fixed and movable systems and is both economical and reliable.

Abstract: A valving-type closure having a resilient diaphragm provided with a portion having a through slit for the passage of fluids, the slit portion being adapted to bulge and open the slit in response to fluid pressure applied to one side thereof. The slit portion has abuttable, cooperable structures on one side, which come into forcible abutment and act to physically open the slit as the portion bulges. Preferably the abuttable structures are in the form of rings molded on the underside of the diaphragm. The slit through the diaphragm also extends through the ring, thereby forming two semi-circular ring segments. The ring segments in turn form abutment shoulders that pivot the walls of the slit away from one another when the diaphragm is bulged, thereby resulting in a more pronounced spreading force being applied to the walls, and increasing the size of the opening formed by the slit.

Abstract: A pressure venting package for foods has a container with both top and side seal areas, and a closure which can accept two different types of insert disks, one for packaging oxygen sensitive (meat) products and the other for packaging non-oxygen sensitive (non-meat) products. The insert disk used for meat products has a gasket of low oxygen permeability and forms a seal with both the top and side seal areas of the container; whereas the insert disk used for non-meat food products forms only a top seal.

Abstract: A combination pressure and vacuum pump for food or drink containers including a pump housing having a pump cylinder therein, a pump head adapted for sealing engagement with a valve stopper on a food or drink container, and a piston in sliding airtight engagement with the pump cylinder; the pump cylinder, pump head and piston defining a pump chamber. A handle is provided for moving the piston and the pump cylinder relative to one another to pump a gas into or out of the food or drink container. The pump chamber is connected to the valve stopper via a first opening when the pump head is sealed to the valve stopper and to the atmosphere via a second opening through a combination pressure and vacuum valve, the combination valve being switchable from a vacuum position to a pressure position.A combination pressure and vacuum valve stopper is also shown which includes a valve element reversible between a pressure position and a vacuum position to convert the stopper between pressure and vacuum use.

Abstract: A closure having an axially movable insert disk which is lifted by a bead around the inside of the closure shell to open a sealed container. When the closure is in sealing position on the container, the lifting bead lies below the top of external threading on the container, and at the top of cooperating internal threading of the closure skirt. The bead has an inside diameter greater than that of the closure threading, and can move upwardly past the external threading on the container. The overall heights of the closure and the container finish can thereby be reduced and less material used.

Abstract: Stopper (1) with valve (6) for a bottle, which stopper (1) and valve (6) are integral and of the same elastic material, the valve being surrounded by a circular raised edge (5) and a circular flange (4) for cooperation with a pump (15) made from plastic material.

Abstract: The invention relates to a screw closure of plastics material for bottles which are under pressure, comprising a cap (1) having a cap end portion (2) and a substantially cylindrical peripheral cap portion (3) with internal screwthread (7), and a circumferentially extending, inwardly projecting bead (5) at the transition between the cap end portion (2) and the peripheral cap portion (3), wherein a sealing disc (9) which is movable relative to the cap bears against the inward side of the cap end portion (2) and the projecting bead (5). In order, in regard to such a pressure-tight closure, to limit the maximum pressure up to which the closure remains pressure-tight, to a value which is noticeably below the pressure at which a bottle explodes, it is proposed in accordance with the invention that the bead has a segment-like interruption.

Abstract: A composite closure for a container vents internal gas pressure in excess of a pre-established maximum. An insert disk fits inside an overhanging top lip of the closure. The undersurface of the top lip is recessed to present a chamber into which excess gas pressure beneath the cover can deflect the disk and thereby provide a vent under the disk. A stop on a small area of the undersurface of the top lip positively abuts the disk to prevent blocking the chamber if the closure is overtightened.

Abstract: This invention relates to an improved can end construction for carbonated beverage cans having a score line defined opening panel incorporated in a selectively contoured pouring spout configuration for accommodation of an automatic pressure releasing resealing cap assembly engageable therewith.

Abstract: A container capable of being evacuated by a pump which is removably and sealably attached thereto comprises a cover having a removable valve mounted therein and a container body which is adapted to receive the cover. A compressible indication member is positioned between the periphery of the cover and container body, the visibility of which from the outside of the container provides an indication of the evacuation state of the container. The cover and the container body are movable relative to each other which movement is dependent on the pressure difference between the interior and the surroundings of the container whereby the deformation of the indication member provides an indication of the amount of pressure in the container.

Abstract: A vacuum storage device comprises a closed vessel for storing food with an air exhaust port provided with a check valve, and a pressure reducing device for drawing out air in the closed vessel with a suction port, either of the closed vessel or the pressure reducing device being provided with structure for hermetically connecting the suction port of the pressure reducing device to the air exhaust port of the closed vessel, the pressure reducing device and closed vessel being removably and hermetically connected to one another by mounting the former on the latter or vice versa.

Abstract: A packing container comprising a tear-off part defined by predetermined lines of weakness and removable from a container wall, and a handle clip connected with a start portion of the tear-off part and comprising an overpressure valve which closes an opening in the container wall.

Abstract: An autoclave useful for pressure digestion of samples for chemical analysis, consisting of a closeable vessel containing the sample, which during operation sustains elevated temperatures and pressures. The autoclave has a PTFE (Teflon) beaker and lid, in direct contact with each other thus forming a tight seal with an excess-pressure release mechanism. The assembled vessel is held in a device that presses the sealing surfaces of the beaker and lid together, through pressure on a metallic lid support disc. The sealing surfaces of the beaker and lid are free-standing, which permits a direct release of excess-pressure and necessitates an extended clamping device for the lid support disc, which is fixed at a single point.

Abstract: A high temperature, high pressure chemical digestion vessel comprising an inner container within which digestion is to take place under high temperature and high pressure conditions. The container is provided with a vent. A replaceable, rupturable pressure release disk is provided having a predetermined rupture pressure for being sealingly interposed in covering relation to the vent to seal the container and thereby enclose a substance to be digested in the container and to rupture and release pressure within the container if pressure within the container reaches the predetermined rupture pressure. The pressure release disk comprises a flat sheet material. A container cap is provided for holding the pressure release disk in sealing relation to the vent in the container. An outer pressure resisting-casement is provided for receiving the container therein and providing support to the container.

Abstract: A vented fuel cap adapted to be removably attached to a filler neck of a fuel tank of the type commonly employed with small internal combustion engines is provided. The vented fuel cap comprises generally a generally cylindrical cap that is formed with inner threads, and is adapted to be threadedly engaged with the filler neck. A liner element is provided to fit within the cap, and is seated along the underside of the top of the cap. The liner element includes an axially inwardly-directed dome-shaped diaphragm portion that includes a slit formed substantially in its center. The cap and liner element allow for bi-directional venting of the fuel tank. The inwardly-directed dome-shaped diaphragm portion of the liner element allows outside air to vent into the fuel tank at a considerably smaller pressure differential than that required to vent outwardly from the interior of the tank.

Abstract: A hand-operated vacuum pump is combined with a resilient closure sleeve for sealing and de-pressurizing the open space within a fermented beverage container. A pump cylinder is covered by a resilient closure sleeve which is insertable into the neck of the beverage container. A piston is coupled for extension and retraction through the pump cylinder. The piston carries a floating seal which is axially movable along a reduced diameter portion of the piston for opening and closing an air inlet port between an air transfer annulus and an evacuation chamber. The pump includes an improved check valve assembly in which a suction port is sealed by a resilient membrane which engages a tapered sealing surface in which the suction port is formed.

Abstract: A cover for a filling or dispenser spout (5) for a storage holder such as a liquid container, which cover consists of a circular body (1) having arranged along the periphery thereof a flange member (2) provided with fastening means (3) such as a screw-thread, co-operating with the spout (5) and a sealing ring (7) fitted inside the flange member, wherein the circular part of the cover located inside the sealing ring is provided with a discharge opening (8) which can be closed off from the container content by a pressure sensitive closing means (9) arranged inside the cover, said closing means being a dome-like structure (13) co-operating with a diaphragm (10) with a passage opening (12), such that the content of a storage holder can be vented without the content thereof, for instance an aggressive liquid, being able to escape to the outside.

Abstract: An apparatus for closing an open end of a mouth of a carbonated beverage container and pressurizing the interior of the container with air. The apparatus includes a base threaded on the mouth of the container to cover its open end and a cap surrounding the base and slidably mounted between upstroke and downstroke positions in order to pressurize the air space above the contents of a previously opened bottle. The apparatus also functions as a closure for maintaining the pressurized condition until the bottle is again opened. The apparatus includes in one form a plurality of locking key members on the cap and locking tabs on the base to hold the cap in its downstroke position. In another form, the lock comprises a rotatable annular collar disposed about the cap and threadedly engageable with an annular flange on the base.

Abstract: A carbonation cap is provided for use with a conventional screw top bottle having an externally threaded neck. The carbonation cap is correspondingly internally threaded and includes one or more resilient seals which collectively function as check valves, pressure relief valves, and flow seals to enable the fermentation and carbonation of beer without transferring the beer from the bottle in which it was brewed. The resilient seals also enable the carbonation of soft drinks, or beer, from an external source of pressurized carbon dioxide. All of the foregoing is accomplished without at any time exposing the beverage or its components to the deletorious effects of the oxygen in the atmosphere.

Abstract: A self-closing container closure which opens in response to overpressure in the container comprises a sealing plug connected to the closure by a plurality of flexible webs, the overall length of each of the webs being at least equal to the maximum distance between the attachments of the webs to the plug and closure as the plug moves between the open and closed positions.

Abstract: A hand operated pump has a threaded extension which is engaged with a threaded bottle neck. The pump is used to restore pressure in a beverage bottle.

Abstract: A stopper having a slit valve is provided for a bottle which is adapted to be used with a pump for evacuating air from the bottle to preserve wine being consumed from the bottle or by increasing the pressure in the bottle, for example, to maintain the carbon dioxide content in a soft drink being consumed from the bottle. The stopper and valve are integral and are made of the same elastic material. The valve is surrounded by a raised circular edge for protecting the slit valve. A circular flange is provided which rests on the top of the bottle neck. The raised circular edge is shaped to sealably receive a pump housing.

Abstract: A sealing device for containers which forms a valve for automatic elimination of overpressurized gases that may form with the container is provided. The device is composed of a rigid cap having a flat crown and depending skirt, an elastic disk sector in contact with the underside of the flat crown and an inner cap having a circular crown with a circular cutout and raised circular rim on an upperside thereof. A flat circular protuberance on the underside surface of the disk sector, when the device is in use fits into and is surrounded by the circular crown portion, both of which are adapted to fit vertically over the orifice of the container. When in use, the circular crown exerts a crushing pressure on the upper portion of the elastic disk sector while at the same time the flat circular protuberance remains sufficiently elastic to allow gases overpressurized to vent from the container.

Abstract: A vacuum drainage bottle includes a chamber for receiving fluids from a patient and a pressure indicator (9,21) for measuring the pressure in the chamber. Prior to use, the pressure indicator is isolated from the chamber by means of a breakable seal. The seal may be in the form of a recessed membrane (43), which may be ruptured by depressing the pressure indicator, causing a ball (45) to bear against the membrane (43).

Abstract: A container closure member is adapted for receiving a container sealing liner, the closure member comprising a top panel and a skirt depending downwardly from the top panel. First projections depend downwardly from the top panel interiorly of the closure for defining, with the liner received in the closure member, a first air flow passage extending from beneath the top panel to the skirt. Second projections depend inwardly from the skirt interiorly of the closure for defining, with the liner received in the closure member, a second air flow passage extending downwardly along the skirt to ambient environment, the second air flow passage being in flow communication with the first air flow passage. The liner has container sealing surface at its periphery and a central air flow passage in communication with such first and second air flow passages.

Abstract: Tamper-evident closure apparatus for internally pressurized containers includes a closure provided with a mechanism for venting the internal pressurized gas upon initial unsealing of the container and a tamper-indicating device adapted to be acted upon by the vented gas to indicate that an initial unsealing of the container has occurred. The tamper-indicating device may be, for example, chemically activated to change colors when acted upon by the vented gas or may be mechanically activated so that venting of the pressurized gas causes a visibly apparent disruption, distortion or the like to indicate initial unsealing of the container.

Abstract: A bottle stopper has a head and stem having therethrough a continuous passage wherein is located a valve comprising a restriction in the head of passage and affording at the stem-remote side thereof a seat for a resiliently-loaded stop.The valve is resiliently urged into a closed position but yieldable to open when pressure in the bottle to which it is fitted exceeds the resilient pressure. The head and stem are engageable, respectively, over the mouth and against the internal surface of the neck of a bottle when fitted to a bottle.

Abstract: A container for effervescent products, especially kefir, is covered by a lid having openings for the escape of the gas. A layer, covering the opening, is affixed to the surface of the lid. A passage leading to the exterior and connected with the opening is disposed between this layer and the lid. By means of this arrangement, the gas can escape from the container without difficulty, but germs and dust cannot enter the container from the top since the opening is covered.

Abstract: A pressurizing and closure apparatus for carbonated beverage containers. The apparatus is inserted and secured to the container's mouth and a hand pump pressurizes the container to a pressure greater than the surface pressure of the carbonated beverage. A valve then seals the pressurized container from the pressurizing apparatus as the hand pump is slightly withdrawn from its bottom position.

Abstract: Child-proof turn-lock closure of plastic material for threaded mouths on containers, particularly on bottles, with a screw cap closure on which an outside cap is clamped with axial play, both of which caps are provided with projections or projections and grooves which, within the axial play, can engage in each other, those sides of the projections or grooves which touch each other when the cap is screwed down being made as carriers, while those sides of the projections or grooves which touch each other when the cap is screwed off act as wedges, and in such a way that, when being screwed down, the screw cap is carried by the outside cap but when being screwed off this only happens when an axial pressure is exerted on the outside cap and directed against the container, wherein recesses are provided in the face of the screw cap, which are covered by a gas- and liquid-impermeable inlay cover. The closure is particularly suitable for bottles containing hypochlorite.

Abstract: A bottle closure cap stampable from sheet metal as a shallow cylindrical inverted dish having a rounded juncture forming a fillet between its crown and its cylindrical wall; a layer of elastomeric material being disposed in the fillet and engageable with the axial end of the bottle when the cap is attached. A generally radially extending rip tab is integral with the cylindrical wall at the bottom edge thereof and is adapted to tear through the cylindrical wall by a generally circumferential pull of the user to gain access to the container. A rip line is provided commencing at a corner defined by the bottom edge of the cylindrical wall where it meets the rip tab. The rip line extends at a shallow angle across the cylindrical wall to a level which is spaced below the crown, continuing parallel to the crown circumferentially about half-way around the closure cap.

Abstract: A thermoplastic threaded closure for a fluid container comprises a relatively rigid, generally curvilinear dome, and an internally threaded annular skirt depending from the periphery thereof. An annular plug sealing member depends from the inside concave surface of the dome, and is constructed and arranged for a slight interference fit within an associated container finish. A plurality of circumferentially spaced venting ports may be provided through the dome, between the plug and the skirt.

Abstract: The closure part is formed by a flat plug which is longitudinally displaceable within a nipple of the suction bottle, the flat plug being displaceable from its basic position on the outside of transverse openings of the nipple, past the transverse openings, into its closing position just in front of the inner end of the nipple, in which closing position it is located at a greater distance from the transverse openings than the length between an end edge and sealing place of a drainage-tube connecting plug serving as a ram for the flat plug.

Abstract: A container closure system such that an uninstructed person would find it difficult to remove the closure. Helical screw threads on the container and on the one-piece closure have detents and discrete thread portions engageable under the influence of a spring means once the closure has been screwed onto (cap) or into (stopper) the container to a certain extent. Unscrewing can only be effected by firstly overcoming the spring means to separate the locking detents/thread portions and subsequently turning the closure while continuing to overcome said spring means.

Abstract: The source of vacuum comprises a tubular body in which a piston which is combined with a piston rod is axially slidable. A seal is interposed between the rod and the body where the rod extends out of the body. A suction orifice is provided which is on the axis of or in the vicinity of the axis of the body and parallel to the axis. An arrangement is provided for holding the body and urging the piston to one end of the body in one hand. A communication passage is provided for putting the suction orifice in communication with a chamber defined between the piston and the body when the piston is depressed relative to the body.