Abstract: A sanitary sampling system for attachment to a tube portion of a fluid containing enclosure. The sanitary sampling system is comprised of a rigid stem portion for attachment to the tube portion of the fluid enclosure, a stopper portion having a lower portion for insertion into the rigid stem portion and tube portion, a disk-shaped orifice plate fitting for placement on the upper surface of the stopper portion and an adjustable clamp for adjustment around the stem portion, orifice plate fitting and stopper portions of the sanitary sampling system. The sanitary sampling system is designed to enable the stem portion, stopper portion and orifice plate fitting to interlock to form an air-tight and leak-free seal when the adjustable clamp is tightened.

Abstract: A container system for beer formed of a bottle body, a cap and sealing gasket formed of a blend of butyl rubber and one or more thermoplastic polymers. Preferably, the butyl rubber is present in an amount of from about 20 to about 60% by weight of the composition and the one or more thermoplastic polymers are present in an amount from about 40% to about 80% by weight of the composition. The system provides good sealing properties and prevents oxygen, and chlorinated substances such as chlorinated phenols or anisoles, that may be present in the packaging, from entering the bottle.

Abstract: A package formed of a wooden crate or pallet impregnated with a chlorinated phenol and/or anisole wood preservative, one or more bottles containing a potable material, such as beer, a cap on each bottle and a sealing gasket between the bottle and the cap. The gasket is formed of butyl rubber (20 to 80% by weight) and one or more thermoplastic polymers, preferably polyethylene (40 to 60% by weight).

Abstract: A tamper-evident multiple layer induction foil liner for sealing the opening of a container comprises a "sandwich" having a first layer in the form of a fusion-bond heat seal polymer. This heat seal polymer is fusion bonded to the lip of the container opening to secure the liner to the opening. The next layer is a low-cohesive strength layer which, in turn, is bonded to an aluminum foil layer strengthed with tear-resistant backing. A pull-tab is provided to facilitate removal of the liner after the cap is removed from the container. When the pull-tab is lifted, the low-cohesive strength layer splits or shears through the application of a relatively small amount of force. Thus, the aluminum foil and tear-resistant backing readily may be removed from the container opening. It is then a simple matter to puncture the thin and mechanically weak polymer layer to uncover the container opening.

Abstract: A closure cap and fitment assembly configured for use with a container having a neck with an annular lip at its uppermost end defining a mouth. The closure cap and fitment assembly includes a fitment with a dispensing surface dimensioned to span the mouth of the container and a liner. The assembly further includes a cap with a top panel, an annular skirt and threads for releasable engagement onto the neck of the container. The inner portion of the cap defines a retaining structure which is designed to retain the fitment and liner within the cap.

Abstract: A sealing cap, particularly for sealing against a non-circular sealing surface about an opening of a container (such as a wide roller type roll-on container), wherein the sealing gap includes a closure, a sealing member in the form of a non-circular gasket arranged within the closure for sealing against the non-circular sealing surface of the container, and an alignment disk in the closure for aligning the sealing gasket with the non-circular sealing surface during relative rotation of the sealing cap and container. The alignment disk and sealing gasket are rotatably supported within the closure. The alignment disk includes a non-cylindrical well for receiving the non-circular sealing surface of the container and a pair of opposed inclined surfaces for aligning the sealing gasket with the non-circular sealing surface during relative rotation of the container with the sealing cap. The alignment disc can be used in other appliccations than in a sealing cap, e.g.

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: An oxygen scavenger comprises an oxygen absorbent composition and an oxygen permeable film covering the oxygen absorbent composition and including an asymmetric porous membrane whose outer surface portion in the thickness direction of the asymmetric porous membrane is formed as a dense skin layer. Since the dense skin layer is very thin, the oxygen permeability to the oxygen absorbent composition through the oxygen permeable film can be maintained sufficiently high. At the same time, since the dense skin layer has a sufficiently high barrier property as well as a high oxygen permeability, contact of the substances stored in a container with the oxygen absorbent composition can be surely prevented. The substances stored in the container attached with the oxygen scavenger can be prevented from deterioration due to the oxygen present in the container by a high oxygen absorption ability of the scavenger, and maintained in a good or fresh condition for a long term.

Abstract: A Saturn-shaped container is provided which includes a receptacle forming a lower portion of the container, a lid forming an upper portion of the container, a ring member surrounding the receptacle and supporting the lid, and a seal member positioned between receptacle and lid so as to define a first and second compartment within the container. Advantageously, the lid is transparent and may serve as a magnifying means for viewing contents within the container.

Abstract: A plastic closure comprising a base wall, a peripheral skirt, means on said skirt adapted to attach the closure to a container, and a sealing liner compression molded in situ on the interior of the base wall of the closure, said sealing liner comprising a blend of an ethylene vinyl acetate composition and a thermoplastic elastomeric composition.

Abstract: A vacuum-indicating closure includes a top wall 12 and a skirt 14 depending from the periphery of the skirt with a tamper-evident band 24 formed on the lower edge of the skirt. The top wall has a center deflectable portion 30 formed by a thinned circumferential hinge 32 and the deflectable portion is divided into pie-shaped segments 44 by a plurality of radially-extending thinned hinged 40. The center deflectable portion is moved between a convex position and a concave position with the presence or absence of vacuum within the container to which it is applied.

Abstract: Closure liner, i.e., innerseal, comprising a pressure-activated adhesive that is a copolymer of butadiene and acrylonitrile or methacrylonitrile. The copolymer has a single glass transition temperature of no higher than about -25.degree. C., a nitrile content of no greater than about 31% by weight, preferably of from about 18% by weight to about 30% by weight, a Mooney viscosity of at least 95 (measured according to ASTM D1646-87 at 100.degree. C. for 4 minutes), preferably from about 120 to about 150. The copolymer is not cross-linked, and the amount of vinyl groups in the copolymer should not exceed 10% by weight.

Abstract: A polyethylene compression-molded closure with an elastomer liner that is removable, the elastomer being a blend of polypropylene and a rubbery copolymer.

Abstract: A liner, suitable for use with caps for containers, comprising a layer of compressible polymeric foam, a layer of adhesive in contact with and coextensive with said foam layer, and a layer of polymeric film in contact with and coextensive with said layer of adhesive.The liner shows good chemical resistance, good resistance to high temperatures, and good impermeability to gases.

Abstract: A polypropylene compression molded closure with an elastomer liner that is removable, the elastomer being a blend of polyethylene and a rubbery copolymer, containing oil.

Abstract: A tamper indicating closure for use with a container having a neck with an opening in which at least a portion of the closure is transparent. A destructible seal is bonded to the container neck providing a hermetic seal which is visible through the closure to indicate package integrity or tampering. In some embodiments, a transparent insert member is provided through which the seal element is visible, and after removal of the seal element, the insert member serves to reseal the closure to the container neck. In some embodiments, access is obtained to the container by unthreading and removing the closure from the container neck and puncturing the destructible seal element. In other embodiments, the seal element is bonded to the flat closure top or the insert so that the seal element is fractured upon initial opening movement of the closure to remove it from the container neck.

Abstract: Tamper-resistant inner seals that bond firmly to the lips of lidded and capped glass and plastic containers. The innerseals incorporate a metallic foil having a heat sealable adhesive applied to one surface thereof. The heat-sealable adhesive comprises a parafin wax or blend of paraffin wax and microcrystalline wax, polystyrene or derivative thereof, rosin or derivative thereof, and at least one high molecular weight polymeric material selected from the group consisting of ethylene/acrylic acid copolymers, ethylene/vinyl acetate copolymers, ethylene/methacrylate copolymers, and ethylene/vinyl acetate/methacrylic acid terpolymers, and blends thereof.

Abstract: A floating cap seal for sealing containers whose openings are equipped with non-planar surfaces includes a seal which floats upon a ring permitting the seal to effectively seal uneven vessel opening surfaces.

Abstract: A plastic closure having a plastic liner disposed therein is adapted to assemble with a container and provide a side seal and a top seal between the closure and the container wall adjacent the container mouth. The closure includes a plastic cap having an annular ledge near the junction of the cap top wall and skirt. Downward linear movement of the closure relative to the bottle during assembly of the closure with the bottle irons a marginal portion of the liner adjacent the liner edge between the annular ledge of the cap and the outer rim edge of the bottle wall surrounding the bottle mouth, and a side seal between the closure and bottle wall surrounding the bottle mouth is provided thereby. A top seal between the closure and rim of the wall surrounding the bottle mouth is also effected by compressing a portion of the liner therebetween.

Abstract: A composition for forming a molded article having the external appearance resembling that of natural cork which comprises, a thermoplastic resinous material as the major ingredient thereof, a caramel colorant which is present in an amount sufficient to impart to the thermoplastic resinous material the color of natural cork, and a blowing agent, said thermoplastic resinous material being compatible with the caramel colorant and having a processing temperature which is not so high as to degrade the caramel colorant during the molding operation.

Abstract: A cap liner in the form of a sandwich and so arranged that a compressible intermediate layer in the form of discrete compressible strips of relatively great thickness is disposed between two relatively thin non-resilient outer layers. The intermediate layer can be squeezed beyond the periphery of the material for making a better seal and the separate rods will be joined together in abutting fused relationship when the intermediate layer is so compressed. One of the outer layers can be eliminated, in which case the top wall of the cap serves in its place.

Abstract: A laminated lidding material suitable for use on cups of high density polyethylene and/or polypropylene comprises (1) as the bottom layer, a co-extruded layer of ethylene methyl acrylate and low density polyethylene resin, (2) a primer layer, preferably of polyurethane, (3) a layer of polyester, nylon, polypropylene or metallic foil, (4) a layer of low density polyethylene resin, and (5) a top layer of metallic foil, preferably aluminum foil. Lids prepared from this material can be adhered to the tops of high density polyethylene and/or polypropylene cups, and have sufficient strength so that they do not tear on removal.

Abstract: A closure for a teat cup with a resilient inner liner in the shape of a small disk with a centrally located bulge. A farmer who has to milk fewer than four teats on any cow because of injury to or disease in one of them can utilize the closure to adapt an automatic milking machine of the conventional type to harvest her milk. The disk is large enough to cover the opening in the teat cup liner otherwise provided for the reception of a teat so that the flow of air therethrough can be cut off when a vacuum is applied to the passageway which terminates in this opening. The bulge with its gently sloping, raised surface increases the area of contact between the disk and the lip of the liner to aid in sealing the disk to the cup under vacuum conditions and prevents the disk from slipping sideways. A magnet secured to the back side of the closure, opposite the bulge, facilitates storage.

Abstract: In the sealing of a glass container containing a product such as a food product by means of a cover comprising a metal foil having on one surface thereof a sealant layer of a thermoplastic resin, the opening end of the container is preheated, and the cover is placed on the opening end, after which the cover is pressed against the opening end successively by a heating plate and a separate pressing plate. By this process, a positive seal and a high sealing process efficiency are obtained even when the container content is a product such as a heated liquid food product and even when the rim surface of the opening end of the container has some projecting irregularities.

Abstract: A container closure having a sealing liner comprising a vinyl chloride-type resin is provided which has excellent sealing properties, openability and hygienic characteristics. The liner is composed of a composition, especially a plastisol composition, comprising 100 parts by weight of the vinyl chloride-type resin and 35 to 200 parts by weight of a mixed fatty acid ester of glycerin derived from glycerin, at least one saturated or unsaturated fatty acid component having an even number of carbon atoms between 6 and 24 and at least one acetic or butyric acid component, such as a diacetyl higher fatty acid glyceride. A method for producing the container closure is also provided.

Abstract: A heat-sealing sheet material can be obtained by forming, on one side of a sheet base material such as aluminum foil, a sealant layer composed of a graft copolymer comprising a trunk polymer of a 20 to 60% saponification product of an ethylene/vinyl acetate copolymer having a vinyl acetate content of 15 to 45% by weight and a branch polymer of an unsaturated carboxylic acid in a proportion of 10% by weight or less of the partially-saponified product. This sheet material exhibits excellent heat-sealing strength with respect to glass containers, and, moreover, there is almost no decrease in the sealing strength even when the material has been in contact with water. Accordingly, the sheet material is suitable as a sealing material for the opening rims of glass containers for water-containing food products such as jams and pickles.

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: 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 metal cap having a primer layer thereon which has a thermal adhesiveness with respect to a lining layer and wherein part of the lining at the bottom of a cap is thermally adhesively fixed to the primer layer.A method of manufacturing a metal cap including steps of applying a primer to the cap which has a thermal adhesiveness with respect to a lining layer and heating only a portion of the bottom of the cap to cause only part of the lining to become affixed to the primer.

Abstract: Apparatus for the culture of aerobic, anaerobic organisms and tissue which is formed of two sections, one fitting with the other as a cover and has a lubricated open cell foam filter gasket having on one side a microporous membrane and on the other, a non-porous layer. The gasket is fitted to the cover section or onto the rim of the container section and minimizes the chances of contamination from the ambient or otherwise gaseous atmosphere of incubation of the culture or biological material contained therein when closed and/or in use.

Abstract: Provided is a device for preventing the inward deformation of a hollow plastic container which would normally inwardly deform after closure due to the cooling of hot liquids therein. The device comprises a membrane extending across the container spout for sealing the spout, which membrane is more flexible than the walls of the container, means for securing the membrane into sealing engagement with the spout, and means for applying the ambient pressure existing on the outside of the container to the outside of the surface of the membrane.

Abstract: A plastisol composition containing as the resin component a copolymer of a normal .alpha.-olefin and maleic anhydride (1:1 mole ratio) having the structure ##STR1## WHEREIN B is a member of the group consisting of ##STR2## and the hydrolysis product thereof, ##STR3## R is H or C.sub.x H.sub.2+1, x is 1 to 16 and n is 2-300, and a plasticizer for said resin component. The plastisol when fluxed can be used as a closure gasket for containers.

Abstract: A plastisol composition containing as the resin component a copolymer of a normal .alpha.-olefin and maleic anhydride (1:1 mole ratio) having the structure ##STR1## WHEREIN B is a member of the group consisting of ##STR2## and the hydrolysis product thereof, ##STR3## R is H or C.sub.x H.sub.2x+1, x is 1 to 16 and n is 2-300, and a plasticizer for said resin component. The plastisol when fluxed can be used as a closure gasket for containers.

Abstract: A semi-rigid, deflectable reusable lid in the shape of a disk and formed of a non-porous material is adapted to hermetically seal the open mouth of a container. The lid is positioned over the mouth of the container to be sealed and is retained in position by a threaded band. The inner lid surface adjacent the perimeter of the lid is elastomeric or pliable and is adapted to be depressed by the rim of the container during the cooling interval of the usual food processing cycle to provide a seal between the inner surface of the lid and the rim of the container. When the container is sealed, the central portion of the lid is drawn partially inwardly into the open mouth by the reduced pressure within the container. The lid may be formed of one or more types of suitable material to achieve the deflectable and sealing characteristics desired.

Abstract: A plastisol composition containing as the resin component a copolymer of a normal .alpha.-olefin and maleic anhydride (1:1 mole ratio) having the structure ##STR1## WHEREIN B is a member of the group consisting of ##STR2## and the hydrolysis product thereof, ##STR3## R is H or C.sub.x H.sub.2x+1, x is 1 to 16 and n is 2-300, and a plasticizer for said resin component. The plastisol when fluxed can be used as a closure gasket for containers.

Abstract: A plastisol composition containing as the resin component a copolymer of a normal .alpha.-olefin and maleic anhydride (1:1 mole ratio) having the structure ##STR1## WHEREIN B is a member of the group consisting of ##STR2## and the hydrolysis product thereof, ##STR3## R is H or C.sub.x H.sub.2x+1, x is 1 to 16 and n is 2-300, and a plasticizer for said resin component. The plastisol when fluxed can be used as a closure gasket for containers.

Abstract: A synthetic cork-like material for use as a closure for liquid containers which is composed of a fine celled polyolefin foam containing an ionomer and which may be formed by a foaming process.

Abstract: A plastisol composition containing as the resin component a copolymer of a normal .alpha.-olefin and maleic ahydride (1:1 mole ratio) having the structure ##STR1## WHEREIN B is a member of the group consisting of ##STR2## and the hydrolysis product thereof, ##STR3## R is H or C.sub.x H.sub.2x+1, x is 1 to 16 and n is 2-300, and a plasticizer for said resin component. The plastisol when fluxed can be used as a closure gasket for containers.

Abstract: A plastisol composition containing as the resin component a copolymer of a normal .alpha.-olefin and maleic anhydride (1:1 mole ratio) having the structure ##STR1## WHEREIN B is a member of the group consisting of ##STR2## and the hydrolysis product thereof, ##STR3## R is H or C.sub.x H.sub.2x.sub.+1, x is 1 to 16 and n is 2-300, and a plasticizer for said resin component. The plastisol when fluxed can be used as a closure gasket for containers.

Abstract: A novel membrane-to-closure mouth structure is effected by causing a paraffin-based heat activatable peelable sealing ply on a thin metallic foil to adhere to a sealing face of a closure mouth composed of a polymer such as polyethylene by electromagnetically inducing intense abbreviated heat in the foil and consequent focusing of the heat activation necessary for resin migration under pressure to form a water and gas transmission barrier in a frangible sealing ply structure composed primarily of low tensile strength waxes complemented by tackifying materials.

Abstract: A bottle cap is disclosed having a pair of spaced score lines extending across the top of the cap and across a peripheral depending skirt to the edge. A sealing element is bonded to the surface of the inside of the cap. The bonded interface between the sealing element and the cap extends across portions of each of the score lines away from a downwardly depending tear-off flap. The bonded interface serves to prevent tearing of the score lines when the cap is removed. The sealing element is undamaged when the cap is removed so that the cap may be reused.

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.