Abstract: A thermoplastic closure suitable for fitment to a threaded container neck is disclosed. The closure has at least one venting groove in the sidewall traversing the closure thread. A rigidifying means is provided at the point of traverse of the venting groove and the closure thread. This rigidifying means has a perpendicular height measured from the sidewall less than the perpendicular height of the closure thread also measured from the sidewall. The rigidifying means provides hoop strength to the closure sidewall.

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: A combination of a threaded closure and a threaded finish of a cooperating container, with axial venting slots formed through the threaded portions of the closure and finish. The venting slots on the closure and finish are arranged to be axially aligned when the seal between the closure and finish is first broken.

Abstract: A thermoplastic closure suitable for fitment to a threaded container neck is disclosed. The closure has a top wall with an annular sidewall depending therefrom. To provide a gas-tight seal between the closure and the container, there is provided a gas-tight sealing system above the closure thread. About the inside surface of the annular sidewall is an extended closure thread which, due to its extent, requires the user to make two turning motions to achieve removal of the closure from the container. By requiring two turning motions, sufficient time is provided for venting of any pressurized gas from the container to the atmosphere. This venting can be facilitated by the utilization of any conventional venting means.

Abstract: A thermoplastic closure for fitment to a container for packaging product capable of producing internal container pressure, e.g., carbonated beverages, is disclosed. The closure comprises a top wall and an annular sidewall downwardly depending from the top wall. A closure thread on the inside surface of the sidewall is provided for cooperation with the container neck thread to achieve fitment of the closure to the container. A sealing system adjacent the top wall of the closure provides sealing of the closure to the container. Venting structure is provided on either the closure or the container or both for venting of pressurized gas from the container upon loss of the seal when the closure is rotated to remove it from the container. A heat-shrinkable tamper-indicating means is attached to the lowermost edge of the sidewall of the closure. Application of heat to the tamper-indicating means causes it to shrink towards the container and to a point of interference with a container flange.

Abstract: A plug-type closure for a bottle, e.g. a wine bottle "cork" consists of a unitary circular cross section plug having a thin-wall core spacedly surrounded by the outer member and a plurality of radial webs bridging the outer member core. The core is formed with a corkscrew-shaped cavity including a screw-shaped groove whose depth and radius decreases progressively toward the bottom of the plug.

Abstract: A device for culturing microorganisms includes a vessel having a mouth for containing a culture medium and a stopper member for hermetically sealing the vessel. The stopper member is provided with a through hole on its peripheral wall for communicating with the inner atmosphere of said vessel.

Abstract: A virgin sealed inner closure cap for container is provided which comprises a base cap member made of one thermoplastic resin and provided with a pour-out hole through the upper end wall thereof and a plug member removably fitted to said pour-out hole and having a holding tongue thereon. The plug member is made of another thermoplastic resin, which has no chemical affinity with that of the base cap member, and lightly attached to the base cap member to cover the pour-out hole by pressing the plug member against the base cap member while the plug member is molten by heating.

Abstract: A safety closure cap capable of venting excess pressure within a container is disclosed. The safety closure cap is a unitary device made of a flexible material, constructed to seal a container having an orifice surrounded by an upstanding rim. The safety closure cap is comprised of a disc having a retaining lip; an annular ring which is parallel to the disc and connected thereto by a short annular wall; a pull tab connected to the periphery of the annular ring; a sealing skirt extending outwardly and downwardly from the annular ring which is adapted to substantially overlap the container rim; a venting channel adapted to vent gasses within the container which extends across the periphery of the annular wall from the retaining lip portion to the outer periphery of the annular ring, and two vertical gripping members disposed respectively on upper and lower surfaces of the pull tab.

Abstract: A sealing device for use with a bleed screw of an hydraulic system comprises a one-piece moulding of rubber or plastics material. The sealing device comprises a sealing ring of frusto-conical outline, an end cap, and a flexible strip interconnecting the ring and the cap. In its position of use the sealing ring is clamped between a shoulder on the bleed screw and a plain face on a caliper which surrounds a threaded bore into which the bleed screw is screwed. This prevents foreign matter from entering the screw threads externally. The end cap is detachably deformed over a bead at the free end of the bleed screw to prevent moisture or foreign matter from entering the bore through a bleed passage in the bleed screw.

Abstract: An improved cap is provided for selectively sealing a tube, such as a drain tube, of a suction bag used in medical/surgical suction equipment. The cap is preferably a generally hollow truncated cone, closed at one end and open at the other end to receive the tube. The inner structure of the cap generally defines two chambers. A first chamber has an inside diameter slightly larger than that of the tube. A plurality of axially oriented ribs are disposed on the inside surface of the first chamber to engage in sliding contact with the tube. A raised portion on at least one of the ribs acts as an intermediate stop which defines a first operative position of the cap. In this first operative position, air can pass through the channels defined by the inside of the first chamber wall, the ribs, and the tube. A second chamber has an inside diameter approximately equal to or slightly smaller than that of the tube.

Abstract: A self-sealing ceramic crucible and lid combination suitable for proximate analysis of coal or coke samples. The combination comprises a generally cylindrical crucible vessel having a substantially flat outside bottom surface one one end and being open on the other end, the wall of the vessel terminating at its open end in a rim which is finished circumferentially for sealing with the lid. The inside bottom surface is also preferably substantially flat. The lid member is generally cup-shaped and has a circular top wall and a depending circumferential skirt portion, the upper surface of the top wall being generally flat, the inside diameter of the top wall being slightly greater than the outside diameter of the crucible vessel, such that when the lid member is placed on the crucible vessel, the lower surface of the top wall which has a finished annular recess rests on the rim of the crucible, and the skirt of the lid member extends downwardy along the wall of the crucible and terminates in a circular edge.

Abstract: The object of the invention is to provide a container-closure assembly with detent means for positive positioning of the closure with respect to the container at a preselect intermediate position between full closure-container cooperation and non-cooperative relationship.A neck (16) of a container (10) is provided with external threads (22) including a detent positioning assembly (24) comprised of a pair of outwardly extending projections (26a and 26b) formed on a plane perpendicular to the axis of the container. The closure or cap (30) thereof is formed with internal threads (38) for engaging the external threads (22) of the container (10) and a detent positioning assembly comprised of inwardly extending projections (40) below the internal threads (38) thereof.

Abstract: Apparatus for use in lyophilizing a substance in a container and sealing the substance within the container after lyophilization. The apparatus includes an upper portion positionable about a resilient stopper in frictional engagement therewith, and a structure supporting the upper portion. The supporting structure is positionable on the open end of the container to space the upper portion and the stopper axially therefrom and define at least one fluid path communicating with the interior of the container. The upper portion and the supporting means may define an axial passageway for conducting the stopper from the initial position to a sealing position at least partially within the open end of the container upon application of an axial force to the stopper.

Abstract: A container sealing system is disclosed herein for use in conjunction with a refillable container having a resealable closure member associated therewith. The sealing system includes a first fluid tight sealing member disposed between and engageable with the closure member and the container and a second sealing member integrally formed on the closure member and engageable with a portion of the container so as to prevent nongaseous contents of the container from leaking into the area of threaded engagement between the closure member and container. A vent passage is also provided in the closure member which is operative to provide safe controlled relief of pressure within the container in response to partial removal and prior to full removal of the closure member.

Abstract: A reusable closure cap for sealing a vial, comprising a rigid tubular screw-type cover having as an integral part thereof a relatively soft highly elastic stopper bonded to the interior of the closed end of the tubular cover. The elastic rubber stopper has a centrally positioned hollow interior portion coaxially with and facing the open end of the vial to be sealed.

Abstract: An improved tamperproof container for lyophilized material wherein the container comprises a vial having flange about its opening. Below the flange, but spaced apart therefrom is a shoulder to define an indented neck therebetween. The opening is sealed with a pierceable stopper. An overcap extends over the flange and about the neck to form a skirt about the neck. The skirt has at least a portion thereof extending inwardly in gripping relation with the neck and limited in removal by contact with the underside of the flange whereby the cap cannot be removed without destroying its structural integrity.

Abstract: A linerless plastic closure is disclosed which is adapted to seal containers for pressurized contents such as carbonated beverages and which utilizes a plug configuration that is designed to expand under pressure. This is accomplished by making the plug in the form of a disc spring washer with tubular supports joining it to the top of the closure. Pressure against the disc spring washer increases the pressure of the seal against the interior surface of the bottle mouth to provide a reliable seal. The closure may have a slot through the threads on the closure to permit rapid escape of gases from the container during removal of the closure from the container. In this way, dangerous blow-off of the closure from a container is substantially eliminated.

Abstract: An evacuated blood-sampling tube has a stopper with a skirt which fits over the open end of the tube. The stopper can be displaced to a venting position, in which an axial groove in the skirt communicates the interior of the tube with the exterior, to facilitate processing of the tube sample, including pipetting, with the tube stoppered. The tube may have a bead which engages one annular groove in the stopper to provide a sealing fit and another annular groove in the stopper skirt to define the venting position.

Abstract: The cover for a breathing apparatus canister has a body portion of substantially the same shape as the top of the canister and is provided with a skirt extending around the upper part of the canister and also with a central opening through which the neck of the canister extends. Extending from the body portion upwardly around the neck is a circular side wall closed at its upper end by a top wall above the sealing ring that encircles the upper end of the neck. The side wall is provided with inwardly projecting detents underlying the sealing ring to hold the cover in place, but the detents are sufficiently yieldable to permit the cover to be applied to the canister and removed.

Abstract: A bottle stopper comprising a cap and a skirt portion extending from the cap. The skirt member comprises: a flange arranged on the skirt member; a first slit extending from the lower end of the skirt, which is spaced from the cap, to a point on the skirt between the lower end and the cap; and a second slit extending from the lower end of the skirt to a point on the skirt between the flange and the lower end of the skirt. The second slit is bordered by first and second edges, each comprising a protuberance.A method of packaging a pharmaceutical substance comprising the steps of: filling a bottle with the pharmaceutical substance; inserting the inventive bottle stopper into the top of the bottle.

Abstract: A bottle cap which reliably seals a bottle at high and low temperatures and which nevertheless can easily be removed by hand without a tool. The cap is made of two parts: An outer cap member of hard plastic material and a sealing insert of soft plastic material. In the closed position the outer cap member is fixed against the inner sealing member by means of a detachable opening ring, which firmly holds the sealing insert clinging to the bottle opening.

Abstract: The disclosure is of an improved vacuum tube having one or more vents around the mouth to allow evacuation, prior to closure assembly, which tube eliminates the necessity of using a vented stopper and avoids the problems inherent in such vented stopper.

Abstract: A flat can of a size which will fit in a person's pocket which is suited particularly for snuff, but is adapted for use with other products. The can has a bottom wall and a cylindrical side wall, and there is a lid with a top wall and a downwardly-extending peripheral flange which fits snugly around the neck of the cylindrical side wall. The lid is held in place by circumferential rib structures, respectively on the outer surface of the neck of the side wall and on the inner surface of the lid flange. There are also vertical ribs on the can neck which extend upwardly from the peripheral rib and which provide venting when the lid is installed. The vertical ribs are in pairs spaced a short distance from each other and there is a gap in the peripheral rib on the neck between the bottom ends of each pair of vertical ribs. When the lid is being installed or removed, the circumferential rib on the lid flange rides upon the vertical ribs so as to facilitate the movement of the lid flange on the neck.

Abstract: A container for pressurized products wherein the container is formed of first and second container halves joined in a generally mid-height peripheral seam. Under abusive handling, the seam could open and a rupture type failure may occur. A shrunk plastics material film wrapper is applied along the central portion of the container in overlying relation to the peripheral seam and serves to permit controlled venting of the pressure from within the container in the event of such seam failure of the container per se.

Abstract: A stopper for wine bottles wherein a right cylinder cork member is retractably retained as a closure in the neck of the bottle by means of a plastic crown member with a vented head and with anchor legs isolated from the liquid wine contents of said bottle, the two members being assembled as a unit with a retainer ring.

Abstract: A two piece pourer closure, comprising a base portion with a cover portion which on rotation is raised by cooperating protuberances to open a pouring aperture, is provided with a separable guarantee strip, at least partly covering the cover portion to prevent it from being grasped and rotated and with means for centering and supporting a jacket portion of the cover against laterally acting forces. The means for supporting the jacket portion may be the protuberances on the base portion or a ring of guide elements on the base portion engaging the inner surface of the jacket portion.

Abstract: A bottle seal particularly adapted for ink bottles used in automatic ink feed systems wherein the bottle seal is to be pierced by an ink withdrawal needle, the seal having a stopper which has a portion extending into the bottle neck terminating in a lip seal. The stopper portion has an outer diameter groove adjacent the lip seal with at least one air channel communicating from the groove to the exterior to allow aeration of the bottle.

Abstract: Flask which is fitted with a closure which can be sealed in such a manner as to ensure sterility of its contents and which is characterized in that it is provided at its head part with a thread, preferably a round thread which is connected with a conical ring, and in that the corresponding closure cap has an inner thread so formed as to correspond on the flask, and in which the open end of the closing cap is provided with a recess into which the tamper-proof ring is pressed in.

Abstract: A seal cap assembly for a reservoir casing comprises a first seal cap having an annular thick rim portion detachably secured over the upper opening of the casing and a vertical expansible diaphragm formed in a piece with the inner periphery of the rim portion to be disposed within the casing and a second cap assembled with the thick rim portion of the first cap to facilitate removal of the cap assembly from the casing by a pushing force given to the second cap.

Abstract: A closure for the mouth of a container includes a bottom part sealingly attachable to the mouth of the container, the bottom part having a central tubular portion projecting into and sealing with the container mouth. An upper part of the closure includes a cylindrical stopper portion which fits into the tubular portion and seals with at least one annular flange which is provided on the inner surface of the tubular portion.

Abstract: The invention relates to screw closures for thermally-insulating containers. Each closure has a portion adapted to project into an opening of an inner, thermally-insulating vessel of the container, there being a flexible part provided on said portion, this part being intended to occupy substantially completely the opening of the inner vessel when the screw closure is introduced into the opening to reduce the possibility of heat transfer occurring in the region of the screw closure.

Abstract: An improved home canning closure system is provided for a home canning jar featuring a plastic ring and a metal lid combination which is adapted to allow excess pressure to escape while preventing the escape of the contents from the container. The plastic ring includes an annular top panel portion and a skirt portion depending downwardly from the outer periphery of the top panel portion. The skirt portion incorporates threads on its inner surface to engage threads on the external neck of the home canning jar. The plastic ring features a downwardly and inwardly directed annular sealing flange depending from its lower surface which forms a spring member to maintain a constant force to bias the metal lid into sealing engagement with the upper rim on the home canning jar.

Abstract: A self-venting cap for containers of materials that produce vapor comprising a cap, a rigid tube thereon terminating at the geometrical center of the container, a fully flexible tube extending from the rigid tube, and a float at the end of the flexible tube.

Abstract: The invention comprehends a capsule for stoppering the neck of a bottle, characterized in that its skirt has a cross section which is cylindrical practically over the whole of its vertical height, has a slight thickness, substantially uniform over the whole of its height, and includes around its inner wall, a retaining rib of triangular section intended to be anchored and fit beneath the collar on the neck of the bottle.

Abstract: In champagne and other types of effervescent wines which generate gases when bottled and enclosed by a cork which is used as a stopper, the cork is usually wired to the mouth of the bottle to prevent it from being blown therefrom should the pressure build up sufficiently therewithin. When the wire is removed and the cork moved from side to side, it will be released from the neck of the bottle and shot therefrom with a substantial force. A towel is usually wound over the cork and neck of the bottle before being released to prevent someone from being injured when the cork is blown from the bottle neck. The wire was eliminated when a hollow plastic stopper was developed as the pressure within the stopper was applied in all directions forcing the side against the inner surface of the bottle neck an amount corresponding to the increase in pressure.

Abstract: Apparatus for use in blood and like sampling comprises a container and a fitting closure. The blood can be transferred to and from the container without removal of the closure. The container has a shelf to provide a sealing surface for the bottom of the closure which is received in an upper portion of the container. The closure is provided with passageways and is removable from a closed position in which the passageways are sealed against the shelf and a position which allows passage of blood to and from the lower portion of the container. The upper portion of the container can be of larger diameter than the lower portion and can be either concentric or eccentrically located with respect to the lower portion. An adaptor for use with the apparatus is also disclosed which allows a blood sample to be aspirated directly from a vein into the container through closure.

Abstract: Pressure relief channels are provided at the neck of beverage bottles of the type having roll-on (twist-off) closures to release gas pressure within the closure promptly as the closure is turned to remove it and before missiling of the closure can occur.

Abstract: Pressure relief openings are provided in roll-on (twist-off) closures for beverage bottles to release gas pressure within the closure promptly as the closure is turned to remove it and before missiling of the closure can occur.

Abstract: The present invention provides a container with a removable adapter cap for use in nasogastric tube feeding. The adapter cap and container include cooperating elements which provide vent means to secure steady flow during delivery of the liquid dietary contents of the container.

Abstract: A twist closure or screw-type cap is disclosed. The closure which has internal threading is for fitting onto a container having external threading. In one embodiment the uppermost thread turn of the internal threading of the cap terminates a distance spaced from the crown plate of the cap. In a further embodiment the cap is provided with a stopper which projects into and seals the opening of a container when the closure is positioned on the container, and characterized in that at least one beadlike enlargement is provided on the threading of the cap and/or container in the region of the beginning of thread commencement.

Abstract: A ventible closure for a container adapted to hold sterile fluids wherein the container has a neck with an open end surrounded by a beaded rim. The closure includes a rigid plug which fits down into the container neck and an elastic cap fitting over the open end of the neck in engagement with the rigid plug and the beaded rim to seal the container. For venting, internal pressure within the container causes outward flexing of the elastic cap to break the seal and establish flow paths for the fluid to escape from the container.

Abstract: The disclosure relates to a drinking receptacle and valve means wherein: hot or cold liquids may be safely contained and carried during intermittent drinking such that the liquids cannot be spilled and in the case of hot liquids the valve means is manually operable to open the drinking valve to allow drinking of liquid from the receptacle or container. The valve means comprising a lost motion mechanism coupled with a manually operable plunger such that the manually operable plunger first opens a relief valve to relieve steam and pressure from the interior of the container whereupon the plunger continues its motion to open the drinking valve so as to allow drinking of contents from the receptacle after steam and pressure has been relieved therefrom and to thereby avoid the danger of causing hot coffee or other beverages to gush from the drinking valve when opened.

Abstract: A pressure relieving bottle closure is disclosed. The closure is of thin metal construction having an internal sealing disc and adapted to be received by a preferably screw threaded bottle neck to form top and side seals with finish surfaces of the bottle. The sealing material comprises a resilient liner within the closure. In the area of the side skirt of the metal portion of the closure which forms the area disposed over the side seal is at least one opening. If excessive pressure develops inside the bottle, pressurized fluid first escapes through the top seal of the bottle and, upon reaching the area of the side seal over which the said opening is located, pushes the sealing liner outwardly into the opening to escape through the side seal to the exterior of the bottle. The closure again seals when the excess pressure has been relieved, provided that the sealing material used possesses sufficient resiliency.

Abstract: The disclosure is directed to a container for unit doses of dry vaccines which are to be administered on the surface of the skin. The unit dose container is made up of a rigid receptacle and a compressible closure which supports a bifurcated needle bearing dried vaccine. The closure is adapted to support the needle in the container during a lyophilizing process while liquid vaccine is dried on the needle. The closure has grooves which in one position of the closure relative to the receptacle permit the vaporized liquid from the vaccine to be withdrawn from the receptacle during lyophilizing. In another position the closure seals the container. The move from the first position to the second position is accomplished merely by pressing on the end of the closure.

Abstract: A threaded bottle stopper for controlling the release of pressurized gases from a bottle is disclosed. The threaded bottle stopper is used in conjunction with an externally threaded bottle neck and comprises a cap having an internally threaded annular skirt depending downwardly therefrom and a tubular body portion extending downwardly from and integral with the underside of the cap. The outside diameter of the tubular body portion is such to permit insertion thereof within a neck bore of a bottle. The continuous thread on the annular skirt engages a continuous thread on the neck of the bottle where rotation of the threaded stopper in both directions moves the tubular body portion respectively into and out of the neck bore of the bottle. The bottle stopper is provided with means for sealing the discharge opening of the bottle neck.