Abstract: A resin-laminated rubber closure for a medical vial is provided herein. This closure comprises an annular leg part to be inserted into the mouth of the vial, which leg part is notched or cut at least at one position and a flange part to be contacted with the front surface of the vial mouth, wherein the outer and inner surfaces of the annular leg part is provided with a chemical-resistant resin film laminated thereon except for the upper end of the leg part so that the rubber surface is exposed at the upper end of said leg portion, and wherein the leg part has at least one protrusion on the outer surface of the laminated portion. The present invention also relates to a molding process for economically producing said closure.
Abstract: The one-piece twist-off bottle top, used mainly for fizzy or still soft drinks, has a deformable break-open seal (2) that features a succession of recesses (4) exhibiting oblique pyramidal shape. When the top is fitted initially to the bottle, certain of the surfaces of these pyramids are urged gently outward so that the internal diameter of the seal can be enlarged; when the cap is first twisted off, other surfaces are designed to resist on coming up against an annular bead (9) offered by the neck of the bottle, in such a way that the cap and seal are forced to separate.
Abstract: A back-off resistant closure for resealable engagement upon a container having a neck with a ring of outwardly projecting ratchet formations includes a generally planar top portion with a depending peripheral annular skirt, the skirt having a plurality of recess formations for matingly engaging the ratchet formations on the container neck, thus preventing unwanted backing-off of the closure from the container, as well as facilitating the removal of the finished closure from conventional injection molding machinery.
Abstract: An easily openable packaging container produced by heat-sealing a container member with a lid member, the easily openable packaging container comprising:(a) a container member including a recess portion and an integral flange portion surrounding the recess portion; and(b) a multilayer lid member including an inner layer and a substrate layer adjacent to the inner layer being peelable from the inner layer, the inner layer being heat-sealed to the flange portion outside the inner edge of the flange portion and inside the outer edge of the flange portion and having a first circular depression therein outside the outer edge of the heat-sealed portion and inside the outer edge of the flange portion and a second circular depression therein inside the inner edge of the heat-sealed portion and outside the inner edge of the flange portion, the first circular depression and the second circular depression being formed by pressing pressure, the first and second circular depression being for cutting the inner layer when s
Abstract: An end closure for a packaging container, where the end closure has a central panel and a circumferential rim for being attached to a wall of a packaging container for placing the panel countersunk in the container.A tearing denotation is arranged in the panel and merges into a further tearing denotation extending the whole way around the panel close to the rim.A low ledge is arranged at the side of the panel opposite to the rim for maintaining an easily flexible material covering the underside of the end closure and at least part of the rim outer side thereof at a non-welding distance at both sides of the tearing denotation, i.e. at such a distance that the temperature and pressure is insufficient for heat sealing or welding of thermoplastics material on the flexible material and/or the panel.
Abstract: The closure has a body (1) and a guarantee ring (2) connected to it. The hooks (5) applied to the guarantee ring (2) and intended to separate the latter (2) from the body (1) of the closure upon removal of the closure from the container are each equipped with a slide wedge (8). This wedge may perferably be in the middle of the hook which extends longitudinally along the periphery of the closure. The wedge (8) has a slide face (11) of a width (b) that is about a quarter of the length (L) of the hook (5). The slide face (11) is inclined to the interior wall (4) of the guarantee ring preferably at an angle (.alpha.) of 31 degrees and initiates at the lower rim (9) of the guarantee ring in order to improve the machine-operated placing of the closure onto the container.
Abstract: An umbrella type resealable closure device is described. A metal container includes an end wall with a flanged region substantially surrounding a scored portion defining an openable panel. A resealable closure device incorporates a non-hooking closure structure on one side and a structure for separating the openable panel from the end wall on the opposite side.
March 1, 1989
Date of Patent:
March 27, 1990
Reynolds Metals Company
Horst F. Arfert, Roger H. Donaldson, Eric L. Jensen, Wesley E. Smith
Abstract: 5-gallon plastic molded bottles of at least two manufacturers have neck profiles which differ slightly but have a diameter where the variation in profile is at a minimum. The cap of this invention fits at least two profiles. In each profile there is an outward-convex bead below the top lip. The interior of the skirt of the cap curves concave approximately co-extensive with such bead curvature and has plural circumferential internal annular ridges which engage the bead at about its maximum diameter. Below the ridges is an internal annular tension ring having a diameter when unstressed less than the diameter of the top neck bead at its circle of contact which engages below the maximum bead diameter and hence tends to pull the ridges down into tighter engagement with the profiles of either manufacturers' neck finish. Below the tension ring the skirt is formed with a horizontal tear line which extends about 265.degree. of the circumference of the skirt.
Abstract: A plastic unitary molded child-resistant, snap-on, tampered-evident closure includes an upper cap portion having internal spaced ribs disposed for cooperation with the upper annular collar on the neck portion of a container, only one rib being sized to pass through the gap of the upper annular collar, and the upper cap portion having an indication indicating the location of the one rib; a lower skirt portion connected to the upper cap portion and having an inside diameter close to the outside diameter of the upper cap portion; weakened intermediate portions circumferentially formed about the closure at the connection between the lower skirt portion and upper cap portion; the upper cap portion including about its circumference a plurality of vertically extending intermittently spaced grooves extending down to the weakened intermediate portions; a plurality of corresponding openings which separate the weakened intermediate portions and extend through the connection between the upper cap portion and lower skirt
Abstract: Tamper-evident closures for application to containers are disclosed. The closures include a cylindrical side wall, a series of frangible bridges, and an annular skirt, and the skirt includes on its inner wall an upper raised portion, a lower raised portion, and an indented central portion therebetween. In this manner, an annular collar on the container can be locked between these upper and lower raised portions on the annular skirt portion of the closure, and this can result in improved consistent fracture of the frangible bridges upon removal of the closure from the container.
Abstract: A combination of a bottle (1) and a closure (2) for containing a drink, having an improved sealability. The bottle (1) is produced by a blow-molding process with a resin comprised mainly of a polyethylene terephthalate, so that a bottle neck (3) is in a non-crystalline state while a bottle body (5) is given an improved heat durability by a bi-axial orientation followed by a heat treatment for relaxation. The closure (2) is made of a thermoplastic resin such a a polyolefin and provided with a top wall and a side wall having a thread (7) on the inner surface (9) thereof corresponding to a thread (4) on the outer surface (12) of the bottle neck (3).
Abstract: A plastic closure for a container, such as a bottle having an externally threaded neck, has a top wall, an internally threaded sidewall, and a seal comprising outer and inner concentric sealing members that extend downwardly from an inner surface of the top wall. The outer sealing member extends downwardly farther than the inner sealing member and is substantially thicker than the inner sealing member. The outer sealing member is disposed to engage an outer corner of the rim of the neck of the bottle when the closure is threaded onto the bottle, and the inner sealing member is disposed to engage the top of the rim after engagement of the corner with the outer sealing member. The outer sealing member deflects outward slightly, and the inner sealing member deflects upwardly and inwardly.
Abstract: A brush has a hole formed at the end of its handle. The hole cooperates with flexible prongs which interfit within the hole to removably engage and support the brush. The flexible prongs are attached to a combined bottle cap/cup which is utilized in combination with a liquid bottle. The cap/cup interfits over the mouth of the bottle in any of the usual ways as by threaded or frictional engagement with the mouth. The cup/cap may be formed in the shape of an ellipse so that it can also serve as an enlarged handle for the brush in that the brush is used without removing same from the cap/cup. In another embodiment, the cup/cap takes the form of an attachment which overfits a bottle and cap so that it can be employed as an attachment to existing packages without the necessity of modifying the existing packaging design and structure. The brush is attached to an overlay of an elongated shape of a size such that the brush hangs along the sides of the bottle.
Abstract: A bottle closure cap for two-component packages is formed with a collar extending from the bottom of a cup-shaped cap which has a bottle screw-on thread on the inner wall of the cup. The collar connects via a thread which is directed opposite the bottle-screw-on-thread, to a beaker which can be brought over projections seated on an outer side of its beaker cylindrical wall into a non-rotatable but axially displaceable coupling engagement with the inner wall of a bottle neck. A front end of the collar comes into form-locked engagement by an annular groove on the bottom of the beaker.
Abstract: A tamper evident push-on type integral synthetic plastic closure cap for an externally beaded container neck, the body of the cap being formed with a thin central disk region, a thicker surrounding rim region, an interior ridged inner skirt provided with an interior sloping wall portion descending from the inner edge of the rim region, and an outer skirt descending from the outer edge of the rim region, the outer skirt being provided with an arcuate, buttressed lifting tab extending horizontally from a portion of the outer skirt, two inward projecting ribs on the internal side of the skirt, a circumferential weakened region in the skirt disposed between the ribs separating the skirt into distinct upper and lower regions and a descending tear tab projecting downwardly from the lower edge of the lower region of said skirt so that lifting of the tab will break the wall of the skirt and separate the skirt at the weakened region to detach the lower skirt and rib from the remainder of the cap by tearing along the c
Abstract: A bottle sealer includes a telescopic expansible hollow extension formed on an annular portion of the sealer sealed in a bottleneck, and fluidically communicated with a liquid filled in a bottle so that when the bottle filled with a liquid or water is subjected to a freezing temperature to become ice, the telescopic hollow extension may serve as a buffer for absorbing the volume expansion due to a conversion of water into ice.
Abstract: A lid for a liquid container having a substantially circular opening is disclosed. The lid includes a drinking spout and a cover integrally connected to a portion of the lid by means of a connecting member, with a cover adapted to fit over the drinking spout in friction-fit relationship. The lid of the invention permits removing the cover and resealing the cover with one hand. In the sealed position, the lid provides a liquid tight seal against spilling through the drinking spout.
Abstract: An assembly of a tube having a breakaway plug member mounted on one opening thereof is provided. The plug member has an open end and a closed end, and includes on its inner surface a first inner-wall portion extending from the open end toward the closed end a predetermined distance which is fixedly secured to the one open end of said tubular body, and a second inner-wall portion defining a space therein which extends from the first inner-wall portion to the closed end. The plug member also includes on its outer surface a thin-walled frangible portion located on or radially outside the second inner-wall portion which is breakable to allow separation of the plug member from the tubular body. The one open end of the tubular body extends in said space beyond the thin-walled frangible portion toward the closed end of the plug member.
Abstract: A container closure molded from plastics material has a top, an annular skirt depending from the top and formed with a screw-threaded on its internal surface, and a tamper-evident ring connected to the bottom edge of the skirt by frangible bridges. The radially inner surface of the ring is formed with wedge-shaped inwardly projecting protrusions for engaging under a security band on the neck of a container. An annular groove is formed on the radially-outer surface of the ring at a location axially between the upper ends of the protrusions and the bridges, and serves to form a hinge in an advantageous method of molding the closure.