Abstract: A cap assembly for sealing a spout of a container, the cap assembly comprising:a) a cap including:1) a top wall formed with a plurality of vertical holes; and2) a skirt that is suspended from the top wall so that the vertical holes in the top wall form respective shelves extending laterally near a boundary region between the top wall and the skirt; andb) a gasket that is mounted on an inner side of the top wall, the gasket having:1) a body adapted to seal the spout of the container; and2) a plurality of ears, the ears extending laterally outward from the body, spaced from each other along a circumference of the body, corresponding to the respective vertical holes in the top wall, and supported by the respective shelves.

Abstract: A dispensing cap (3) having a body (32) made of a rigid or semirigid material, intended to be mounted on a reservoir (21) containing a product of a fluid-to-viscous consistency, is provided with an opening (4) permitting the dispensing of the product and a lid (5) of a rigid or semirigid material capable of obturating the opening (4). The lid (5) is articulated on the body (32) in the vicinity of an articulation axis (A) so as to be capable of selectively passing from an open position to a closed position, and is connected to the body (32) by a connecting element (10) having one of its ends joined to the lid (5) and its other end joined to the body (32). The connecting element (10) is disposed so as to be situated on one side of the articulation axis (A) in the open position and on the other side of the axis (A) in the closed position. The connecting element (10) is subjected to an elongation when the lid (5) passes from one to the other of its open and closed positions.

Abstract: A child-resistant container and closure assembly having a container neck with a first screw thread and two first locking elements located below the first screw thread on opposite sides of the container neck. A closure for the container neck has a second screw thread complementary to the first screw thread, a resiliently deformable skirt, and two second locking elements on opposite sides of the resiliently deformable skirt. The first and second locking elements mutually engage in ratchet fashion when the closure is screwed onto a fully engaged position on the container neck and subsequently block unscrewing of the closure unless a radial pressure is applied to the skirt at positions spaced from the locking elements to deform the skirt to release the locking elements. The first and second threads are two-start, fast-turn threads so that the closure can be moved from a substantially fully disengaged position to a substantially fully engaged position on the neck by rotation through about 180.degree. or less.

Abstract: A plastics seal for a bottle having a beaded rim comprises a sealing cap (3), which comprises a circular flat cover plate (2) and on the underside (4) of which are provided an outer ring (5), which, in the locking position, embraces the bottle neck, and an inner sealing ring (6) which abuts at least regionally against the inner circumference of the bottle opening in the manner of a tight cap, the two rings (5, 6), which are arranged substantially concentrically relative to the central longitudinal axis (7), being integrally moulded on to the cover plate (2). The inner sealing ring (6) is provided on its inner side (10, 10') which is opposite the contract surface (9; 9') with a plurality of reinforcing ribs (11) which extend substantially parallel relative to the central longitudinal axis (7) and are designed to be shaped parts (12; 12'; 12"; 12'"; 12"") which at least regionally provide a flexible supporting engagement for the inner sealing ring (6) when disposed in the sealing position.

Abstract: Potable liquid containers including a container, container closure and a closure liner, where the closure liner is formed from a polymeric heterogeneous blend of unvulcanized and uncrosslinked butyl rubber and a thermoplastic polymer are described. The closure liners are used for containers with closures such as a twist crown, a crown cork or a screw cap, for bottles, jars and the like, and more specifically for beer, juice and soft-drink bottles with closures made of metal or plastics.

Abstract: A twist-off closure is disclosed for all kinds of containers having a head and a closure cap. The container head has at its top end a sealing lip shaped as a circumferential bead. A steep, multiple-start thread is located below the sealing lip. A fin is arranged between each winding of the steep thread and the container shoulder. The closure cap has a corresponding inner thread that co-operates in the closed state with the fins of the container head causing the closure cap to be clamped, so as to prevent the container from being unintentionally opened by itself. In the closed state, the first part of the windings of the thread of the closure cap engage the fins of the container head, and this is clearly perceived as a pressure point when twisting the cap by hand. All that is required to open and close the closure cap is to twist it through a half turn.

Abstract: A universal cover for cosmetic dispensers is disclosed. The cover comprises a cover body having an open end and a closed end and a retainer secured to the cover, adjacent to the open end, for securing the cover to a dispenser. The retainer comprises a ring of foam or other resilient material adhered or otherwise secured to the cover body adjacent to an open end of the cover body. At least a portion of the cover body is transparent or at least color transparent, so that one can view and identify a cosmetic in a cosmetic dispenser with the cover secured thereto.

Abstract: Two cap modifications are disclosed for use on water bottles to be installed in water dispensers. A central conical well in the top of the cap is formed with a scoreline. When the bottle is lowered into a dispenser, a probe of the dispenser enters the well and causes it to split along the scoreline. When the bottle is raised, the well substantially returns to initial condition, inhibiting spillage of any liquid remaining in the bottle.

Abstract: A vessel for reagent liquids includes a storage vessel with an identification mark applied thereon and a closure which is snapped onto the storage vessel. Either an inner wall surface of the closure and an outer wall surface of the storage vessel or an outer wall surface of the closure and an inner wall surface of the storage vessel fit tightly against each other, and a twisting of the closure and storage vessel is prevented by projections which are located on the adjacent wall surfaces. Further a system for positioning and reading identification marks on storage vessels includes an analytical instrument having at least one holding position for storage vessels and a reading device for identification marks on storage vessels with a twist protection as described above.

Abstract: The present invention employs a plastic snap-on cap which engages the neck crown and is internally threaded to engage the neck threads of a conventional container. A foam gasket under the top of the cap prevents leakage by sealing against the neck lip. The cap has internal threads which snap over and then engage under the neck threads. Vertical "barriers" below the cap threads prevent unscrewing the cap so long as the cap skirt is intact. Score lines extend from the bottom edge of the cap skirt to above the internal cap bead which engages the neck crown and extend up to the cap threads. A tear tab is used to tear a vertical strip of the skirt which extends up between the score lines. The cap is thus tamper-evident since it cannot be removed so long as the cap is intact but can be removed by tearing the aforementioned strip. In one modification, a well is formed in the center of the cap.

Abstract: A child-resistant container and closure assembly having a container neck with a first screw thread and two first locking elements located below the first screw thread on opposite sides of the container neck. A closure for the container neck has a second screw thread complementary to the first screw thread, a resiliently deformable skirt, and two second locking elements on opposite sides of the resiliently deformable skirt. The first and second locking elements mutually engage in ratchet fashion when the closure is screwed onto a fully engaged position on the container neck and subsequently block unscrewing of the closure unless a radial pressure is applied to the skirt at positions spaced from the locking elements to deform the skirt to release the locking elements. The first and second threads are two-start, fast-turn threads so that the closure can be moved from a substantially fully disengaged position to a substantially fully engaged position on the neck by rotation through about 180.degree. or less.

Abstract: A bottle having a sterility seal and a method for producing same are disclosed. The bottle, which can be configured to retain a medicament in powder or tablet form, features a protective cap configured to engage a transfer assembly associated with the bottle. The cap includes one or more raised ridges on an interior surface engageable with a portion of the transfer assembly. A band or layer configuration of a sealing material such as silicone is applied to the transfer assembly prior to insertion of the cap thereover. As the cap comes into surface contact with the sealing material, the ridges cause the material to "roll up" into a toroidal O-ring configuration, thereby forming a seal between the cap and the bottle adapted to the dimensional variations of those components.

Abstract: A cap assembly for receiving a stopper and for application to the threaded neck of a bottle. The cap assembly includes a cap and a thrust washer. The cap has an end wall which has a central aperture and a circular side wall which has internal threads. The thrust washer has a base wall with a central aperture and a side wall which has a ridge at its outer end. The thrust washer lies within the side wall of the cap so that the base wall engages the end wall and the side wall extends through the aperture in the end wall and the ridge engages the outer surface of the end wall to retain tile thrust washer on the cap. Tile side wall of the thrust washer is resiliently yieldable to enable the ridge to disengage from the end wall to release the thrust washer from the cap.

Abstract: The present invention employs a plastic snap-on cap which engages both the neck crown of a container having a rectangular body and a neck having screw threads and is internally threaded to engage the neck threads of the conventional container. A foam gasket under the top of the cap prevents leakage by sealing against the neck lip. The cap has internal threads which snap over and then engage under the neck threads. Vertical "barriers" below the cap threads prevent unscrewing the cap so long as the cap skirt is intact. Score lines extend from the bottom edge of the cap skirt to above the internal cap bead which engages the neck crown and extend up to the cap threads. A tear tab is used to tear a vertical strip of the skirt which extends up between the score lines. The cap is thus tamper-evident since it cannot be removed so long as the cap is intact but can be removed by tearing the aforementioned strip. In one modification, a well is formed in the center of the cap.

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 semi-spherical structure defined by a depending convex wall that engages a gasket mounted within the cap body when the cover is locked in a close sealed position.

Abstract: A screw cap for a container that has a thread, in particular bottles, jars, and the like. A ring that incorporates at least one projection engages the thread on the container. The ring can be configured as a safety ring, i.e., that it have a lower ring section that incorporates barbs that extend from a perpendicular wall area. When the container is first opened, the barbs engage under projections on the container and burst the lower ring section off. The cap of the screw cap need incorporate no threads of any kind because of the projections of the ring.

Abstract: A vacuum-sealed shipping/storage system based on rigid cylinders of plastic or metal, of various diameters, permanently sealed at one end, with the opposite end having removable, double-sealed vacuum lids. In the case of three inch PVC pipe, the first, or primary lid is a common wide-mouth mason jar lid. Larger cylinders use a similar device. Over each primary lid, a single cap of molded or machined plastic or metal is threaded to a permanently affixed threaded collar, such threaded collar being fastened to the outer surface of the cylinder. Between this secondary cap and collar is found an O-ring, of common design, for the purpose of maintaining a secondary vacuum seal should the primary seal become loosened by shifting contents. Removal of both primary lid and secondary cap exposes the entire inner diameter of the cylinder for insertion or removal of materials. For storage-only applications, where little or no movement of the cylinder is anticipated, the primary lid alone will maintain course vacuum.

Abstract: The present invention provides a method of lining a plastic closure top with a thermoplastic, non-cross linked curable, vinyl chloride copolymer plastisol composition that is plasticized with an effective low temperature fusing amount of (A) an epoxydized natural oil, (B) an organic diglycidyl ether and (C) a curing agent for the diglycidyl ether, the plastisol being stable with a shelf life of at least about four months, the method including heating, without preheating, the lining and the closure top at a temperature not over about 300.degree. F. for about 90 to 120 seconds using convection heating without pressure and without conductive heating, to fuse the composition and thereafter solidifying the fused compositon and thereafter cure the composition to provide the lining with tensile and elongation measurements sufficient for a stable closure assembly.

Abstract: A flexible, distortable liner is provided for the cylindrical interior cavity of a cap for a container, especially in the field of relatively small containers such as used for toiletries and the like, the purpose of the liner being to accommodate discrepancies between the neck of the container and the friction fit of the cap. The liner is essentially an annular wall fitting the interior of the cap but having alternated wall portions of reduced thickness compared to interspaced wall portions of greater thickness, the latter having outer arcuate surfaces tightly fitting the cap cavity and the former lying in radially spaced relation to the cap cavity so as to impart greater flexibility to the liner.

Abstract: A polyethylene shipping drum especially suited for shipping hazardous materials is disclosed. The drum comprises a molded container and closure which are threadably connected to each other to form a seal therebetween. A thread lock is provided for the threaded connection between the container and closure. The container has a plurality of indentations in the side wall thereof to provide ledges for stacking the containers one inside the other in a stable, nested relationship. An annular rim is provided on the closure with an inclined annular surface for retaining the sealing gasket in a groove without adhesives.

Abstract: In containers (1( with a screw cap closure (2), both of plastic, the sealing and the firm fit of the screw-cap (2) are improved, in the event of the container dropping, by virtue of the fact that a conical sealing ring (10), which presses from the inside against the mouth rim (5) of the pouring spout (3), is combined with an O-ring seal (13), which is inserted in an undercut annular groove (11) sunk in the end face (6) of the screw-cap closure (2) between the conical sealing ring (10) and the peripheral wall (7), and that in the closed condition the mouth rim (5) bears tight against the peripheral wall (7).

Abstract: A water filtration device is provided with a vessel body having an open interior for containing activated carbon used to filter water flowing through the open interior of the vessel body. The vessel body is preferably tubular with at least one open end and an end cap for closing the open end. The end cap can have an end wall and a tubular side wall dimensioned to fit over the tubular vessel body to close the open end. A circumferential groove, preferably semi-circular in cross-section, is provided on an inside surface of the side wall of the end cap. This circumferential groove mates with a circumferential groove on an outside surface of the tubular vessel body when the end cap is fitted over the open end to form a locking channel. A flexible retaining rod is inserted through an aperture in the side wall of the end cap and into the locking channel to prevent disengagement of the end cap from the vessel body.

Abstract: A bottle crown cap, particularly for beer bottles, comprising a metal shell and a liner of thermoplastic polyurethane. The liner material is completely reacted, then applied directly to the shell by a hot melt process.

Abstract: A vinyl chloride copolymer foam plastisol with an epoxidized natural oil plasticizer such as epoxidized soybean oil and a blowing agent, the plastisol having a long shelf life and the plastisol easily being applied as a liner to the underside of a closure top and fused, without preheating, at a relatively low temperature of about 300.degree. C. for a short time of about 90 to 120 seconds to form a foam liner, the solidified foam plastisol having resilience, good tensile and elongation properties to thereby provide a stable gasket assembly.

Abstract: This relates to a closure combination which includes the closure being formed with a sealant channel to which there is applied by spin lining a plastisol type compound sealant, or the like. It is preferred, from an economy standpoint, to utilize a minimal amount of the sealant while providing the necessary sealing surface between a container neck finish and the sealant. Since the sealant is applied by a spin lining process during which the closure is rapidly rotated, the sealant is thrown radially outwardly by centrifugal force. However, the viscosity of the sealant normally is such as to prevent it from being returned to a level-flat condition. It has been found that by modifying the sealant channel configuration, particularly the slope of the base wall thereof, depending upon the viscosity of the sealant, one can selectively obtain a uniform thickness sealant application or a flat top sealant application.

Abstract: A closure having an insert which acts as a barrier over a container neck lip to selectively shield the product being packaged. An elastic sealing member which can be in the form of an O-ring is compressed between the insert and the container neck lip by a threaded cap of the container.

Abstract: A closure having an enhanced seal for withstanding distortion of the closure and the container to which it is attached during sterilization.An inner plug cooperates with an outer bead to capture the container neck lip and maintain a separate resilient hermetic seal in position between the closure top and the container neck lip.

Abstract: A gasket retaining cap member, and method of forming same, comprising an integral cap member having a downwardly extending annular flange forming an exterior cap wall and a downwardly extending annular retention wall spaced radially inward of the cap wall thereby forming a ring-shaped well therebetween into which a gasket member is placed and thereafter held securely in position by deformation of the retention wall. The method of forming the gasket retaining cap member comprises positioning the cap member, with the gasket placed inside, within a heat staking press which operates to stake deformation into the upper surface of the retention wall thereby causing the retention wall to partially overlie the gasket member and hold it securely in place.

Abstract: In an insulating jug (1) having a stopper (4) on which is arranged a sealing element (13) having a generally radially extending sealing lip (16) that in the closed position lies on a generally radially extedning sealing surface (19) on the housing (2) of the insulating jug (1) , a reliable seal is attained even when there are relatively large discrepancies in the relative dimensions of the sealing parts. This is achieved through the bending stress of the sealing lip (16) being greater than the force extended on the sealing lip (16) by the fluid in the container, and by arranging a free space (23) on the side of the sealing lip (16) facing away from the sealing surface (19).

Abstract: The invention relates to an insulating jug having a casing in which a recess to receive a lid is arranged at the top and a filling opening is provided at the bottom of the recess that is closable by a closure member of the lid, with a spout projecting laterally from the recess and a sealing ring arranged between facing peripheral surfaces of the recess. The object of the invention is to form the insulating jug in such a way that continous sealing of the lid in the recess is ensured, with ease of operation. This is achieved by forming the sealing ring from a lip seal having a sealing lip directed inwardly of the jug and in that the peripheral surface cooperating with the sealing lip is cylindrical in the operating region of the sealing lip.

Abstract: A closure for a container comprising a body of synthetic plastic material including a top wall and a peripheral skirt, removably engaging a container. An annular channel is provided on the inner surface of the top wall at the area of juncture of the top wall and the skirt. The channel comprises integral side wall portions and at least one of said side walls comprises spaced generally vertically extending ribs. A sealing gasket is cast in situ in the channel and interlocks with the spaced ribs.

Abstract: A closure for a canning glass container with a glass cover and a rubber ring therebetween has an upper rim which is formed in the container and provided with a sealing lip with a wedge having a tip with a radius of curvature between 1 mm and 3 mm, a supporting rim formed in the glass cover and having a circular depression located opposite to the wedge and having a radius of curvature exceeding the radius of curvature of the wedge with the wedge and the circular depression extending over an angle of approximately 110.degree.-70.degree., and a projection formed in the glass cover at its side facing toward the canning glass container and provided with a circular outer edge arranged so that it laterally limits the supporting rim of the canning glass container, centers and holds the rubber ring and centers the glass cover in an inner edge of the canning glass container so that relative displacement of the glass cover and the canning glass container which can hinder closing of the latter, is excluded.

Abstract: The measuring cap-containing, liquid-dispensing container assembly includes a container with interior storage space and upstanding pour spout connected to the space, an annular raised platform peripheral of the spout base and an annular recessed liquid drainage channel between the spout base and platform. The channel preferably has a curved bottom and has a drainage hole communicating with the container storage space. The assembly includes a measuring cap disposed over and releasably secured to the spout by a first seal. The base of the cap abuts the platform and is sealed thereto by a second seal. The first seal can be an annular sleeve depending from the cap top interior peripheral of the spout, and mating threads or mating detents and recesses on the spout exterior and sleeve interior. The second seal is an o-ring in a recess in the cap base and/or platform, or a detent in one of the cap base or platform and a mating recess in the other of the cap base and platform.

Abstract: A bottle closure comprises a cap moulded of a first plastics material includes a skirt having a step between a first inner surface portion and a second inner surface portion of the skirt, and a gasket of a second plastics composition covering a radially outer part of the inner surface of the cap end panel and also the first inner surface portion of the skirt and preferbly at least a part of the second inner surface portion, to achieve a combined side seal and top seal upon application of the closure to a bottle neck.

Abstract: This relates to the securement of a flowed-in plastisol liner in a plastic closure member. The closure member is provided with a channel-shaped seat into which plastisol material is flowed, and after which the plastisol material is cured. Air which is normally entrapped between the plastisol liner and walls of the seat is greatly reduced by providing a seat with a plurality of abutments or projections which extend into the seat and the base thereof and wherein the abutments are generally of a tapered configuration and terminate in the base in fillets or radii which permit the flow of air from around the abutments as the plastisol liner material is flowed into the seat. Also, top portions of the abutments are provided with interlocking elements in the form of slots, crosses and the like into which the liner material flows and forms a mechanical interlock between the plastisol liner and the abutments, thereby preventing relative rotation between the plastisol liner and the closure member.

Abstract: A container closure, adapted for the formation of a sealing gasket of synthetic plastics material in situ, includes an end wall, a continuous side wall upstanding from the end wall and enclosing an inner surface of the end wall, and a plurality of spaced-apart retaining members upstanding from the inner surface of the end wall within the boundary of the side wall, each of the retaining members having a retaining surface obliquely inclined above the inner surface of the end wall. Gasket material, or a pre-cursor material, in liquid state can be introduced into the closure and can flow at least partly around the retaining members and beneath the obliquely inlined retaining surfaces to be retained, upon solidification of the gasket material, in the closure.

Abstract: Glass beads having a particle size of 1 to 200 microns are included as part or all of the filler in a sealing composition suitable for sealing container ends and which is made by dispersing a filler in a latex of a styrene butadiene or other rubbery polymer, optionally also containing a tackifying resin.

Abstract: A closure system for a container having a neck with a cap support flange extending radially outwardly around the neck. A resilient gasket encircles the neck and overlies the cap support flange, to be compressed by a closure cap which is attached to the neck for sealing. Annular rib means project from the support flange against the gasket to retain the gasket in its sealing position. A method is also described for the manufacturing of such a closure system.

Abstract: Glass beads having a particle size of 1 to 200 microns are included as part or all of the filler in a sealing composition suitable for sealing container ends and which may be made by dispersing or dissolving solid styrene butadiene or other rubbery polymer and filler, and optionally also containing a tackifying resin, in a liquid medium.

Abstract: A closure for packaging products in a container under pressure conditions other than atmospheric. "Doming" or depression of the central panel portion of the closure end wall is prevented by a rib reinforcement.

Abstract: This relates to a closure member for containers wherein products are packaged under pressurized conditions. The closure member has a flowed-in liner, and in order to prevent relative movement between the liner and the closure member of the closure assembly, there is provided an interlock between the base of the liner and the base of a channel in which the liner is formed. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: A vessel is disclosed which is particularly suited to the sterility testing of drugs and medical equipment. The vessel comprises a glass container with a flat bottom and a plain cylindrical wall and a molded nylon cap which fits over the open end of the container. The cap has a skirt portion including a sealing ring which forms an airtight seal around the container and a top portion having a removable filter element held in place by a clip and which permits venting of the container.

Abstract: An integrated apparatus or device for transferring, that is, pumping water from a water bottle to a water fountain having a reservoir with a dispensing faucet. A housing is provided carrying a stopper for insertion into the neck of a water bottle. Within the housing, there is a pump; a tube is connected to the pump discharge and extends through the stopper for pumping air into the bottle. A further tube passes through the stopper for transferring water from the bottle. The other end of this tube extends to fitting means which can be placed on the reservoir in a position normally occupied by the water bottle in an inverted position. This fitting carries a float valve which closes the end of the supply tube when the reservoir is filled.

Abstract: A medication container is disclosed having structure which is both resistant to interaction with stored medicine and protects the medicine from deterioration. The container maintains the stored medicine available for almost instant self-administration by thw user. Plating is preferably provided to inhibit interaction of the container and the medicine. Alternately, the container is made from a material which is impervious and inert to the stored medicine. The container is configured to accommodate the desired dosage of medication. The preferred container has efficient double sealing to further protect the medicine. The container preferably consists of two members which are selectively secured together by novel threads which require only a small amount of relative rotation between the members for connection and disconnection. The threads are plated and configured to achieve a smooth but tight fit and to avoid bonding or sticking between the threads when the container has been closed.

Abstract: A closure assembly is disclosed which includes a plastic sealing ring having an annular channel in it for receiving and sealing against the entrance mouth of a container, a metal foil liner spanning the sealing ring and a flexible plastic overcap which receives the sealing ring and foil liner therein. The foil liner has a heat seal coating on one or both faces for sealing to the sealing ring and, in some packages, to the plastic overcap. The three-piece closure assembly is positioned on the entrance mouth of a container and the foil liner is induction heated to soften the heat seal coating thereon to seal the liner to the sealing ring. Induction heating may also be employed to adhesively join the foil liner to the undersurface of the overcap and seal the sealing ring to a foil layer in the container body.

Abstract: A tennis ball storage container is disclosed of the type wherein the balls located inside the container are maintained in a compressed air surrounding in order to prevent microscopic penetration of compressed air from inside the ball during the storage. The container comprises a cylindric storage container and a cylindric lid arranged to place over the container to close same. Sealing means are arranged on the container and on the lid which are effective to maintain a generally air tight sealing engagement between the container and the lid during the operation of placing the lid over said container. The sealing means prevents air present in the space defined by the container and the lid as the lid is being placed over the container. The sealing means prevents air present in the space defined by the container and the lid as the lid is being placed over the container. The volume defined by the inside of the lid amounts to at least two thirds of the volume defined by the container.

Abstract: The invention is concerned with an improved creep resistant sealing arrangement for a bell jar which is used in vacuum work. The bell jar generally consists of a closed top cylindrical container having an open bottom defining a planar rim. The rim generally seats against a flat surface with a gasket between the rim and the surface. A vacuum source communicates with the interior of the bell jar. The sealing arrangement of the present invention comprises a unitary resilient elastomeric ring having a generally J-shaped cross-section, an outer leg of which fits against the outside of the bell jar, an inner leg of which fits against the inside of the bell jar and a cross member of which fits against the rim of the bell jar. Also part of the sealing arrangement is means for fastening the outer leg radially against the outside of the bell jar.

Abstract: A glass container is molded with a recessed outlet end having a sharp outer edge and an enlarged lip. The outside surfaces of the lip of the container from a point adjacent the recessed opening are straight in part and convexly shaped in another part and terminate in a portion of reduced diameter at the neck of the container. A closure assembly centrally housing an aerosol "or pump-type" valve is formed with a depending flange, an annular stepped portion adjoining the central housing, and a concave surface portion connecting the stepped portion and the depending flange. A liquid elastomeric resin lining is flowed onto the concave surface and depending flange portions and cured to form a resilient liner. The closure assembly is then mounted upon the recessed open end of the glass container forming an inwardly diverging channel between the recessed outlet and enlarged lip of the container on the one hand and the stepped and concave portions of the closure assembly on the other hand.

Abstract: An improved sideseal closure and package are described in which a cut rubber gasket is used in a metal closure shell in a closure cap which is pressed onto containers for forming a sideseal. The closure cap has an integral cover and depending metal skirt with an inwardly facing channel formed in the lower portion of the skirt for receiving the cut rubber sealing gasket. The channel includes an inwardly directed bead at its top above the gasket for assisting in retaining the gasket in place in the closure cap. A preferred gasket cross-section is described for minimizing rolling of the gasket during cap application. A preferred finish for the glass container provides a slightly concaved sealing surface for engaging the gasket which is positioned downwardly from the container rim below a flared and slightly concaved guiding surface between the container rim and the container sealing surface.

Abstract: An improved pry-off closure cap is described. The cap has a composite structure comprising a metal cover disc held in a molded plastic ring. The plastic ring has an inner groove for retaining the metal cover and container engaging means consisting of either spaced lugs or a continuous bead positioned on a depending skirt portion of the ring and positioned below the cover retaining groove.