Abstract: A closure for connection to a container with a threaded neck portion includes an upper wall with a lower surface and a skirt formed integrally with and extending generally downwardly from the upper wall. An internal helical thread is formed on an inner surface of the skirt for engaging the threaded neck portion to thereby secure the closure to the container. An inner annular seal extends generally axially downwardly from the upper wall to sealingly engage an inner surface of the neck portion. The inner annular seal has an inner seal apex area and a downwardly sloped surface extending generally downwardly and away from the upper wall to the inner seal apex area. A gas barrier seal has an annular sealing bead positioned between the inner seal apex area and the upper wall inner surface for sealingly engaging the inner surface of the neck portion. The downwardly sloped surface of the inner annular seal holds the annular sealing bead at least adjacent the lower surface of the upper wall.

Abstract: A container (1) includes a body (2) and a cap (20). At least one elastically deformable portion (26, 27) of the cap has a set of beading (17, 18) capable of interacting with a snap-fit edge (6) provided on the neck. A first ramp (6, 16, 11) causes, in response to a rotational movement of the cap (20) with respect to the body (2), an axial displacement of the set of beading (17, 18) along the snap-fit edge (6) between a bottom position and a top position, and a second ramp (6, 16, 11) simultaneously causes the set of beading (17, 18) to part radially so as to allow the set of beading, when in the top position, to pass over the snap-fit edge (6) under the effect of an elastic return force exerted by the elastically deformable portion (26, 27).

Abstract: A bottle/cap assembly with sweep-and-drain action includes a bottle, a cap and a sweep-and-drain mechanism. The bottle has in series, from the bottom to the top, a closed bottom, a body sidewall, a cylindrical neck sidewall, and an open top. The cap is configured and dimensioned to be rotatably received about the neck sidewall and includes a closed cap top to close the open top and prevent egress of liquid from within the bottle. The sweep-and-drain mechanism includes (i) a circumferentially spaced plurality of vertically extending grooves or slots in the bottle extending downwardly from the open top through said neck sidewall, and (ii) a circumferentially spaced plurality of radially extending vanes or wipers projecting downwardly from the closed cap top towards the open top.

Abstract: The present invention is directed to a one-piece dosing cap comprising a top wall, side walls defining the top portion of a dosing compartment, and an attaching skirt extending from the base of the side walls, said skirt comprising substantially vertical walls and a stopping portion, characterized in that said dosing cap comprises at least one undercut portion. Preferably, the one-piece dosing cap of the present invention is manufactured by a one-step injection molding process. Also preferably, said cap comprises attachment means for securing, more preferably releasably securing said cap onto the neck of a container. More preferably, said attachment means are achieved by screw threads, which match cooperating screw threads of the container.

Abstract: A container closure formed from a synthetic resin as a single unit has a circular top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. An outer cylindrical sealing protrusion, inner cylindrical sealing protrusion and annular sealing ridge arranged therebetween, all having a predetermined shape and a predetermined size, are formed on the inner surface of the top panel wall. The thickness of the center portion of the top panel wall is reduced to a predetermined range and a plurality of ribs having a predetermined thickness are formed on the inner surface of the center portion of the top panel wall.

Abstract: Disclosed is a bottle cap comprising an upper body (100) including a plurality of longitudinal grooves (116), an inner cap (114), at least two seals (123, 124), and at least one stopper (120) projection for catching on an upper portion of a bottle; a lower body (102) having a plurality of longitudinal grooves (130) and at least one stopper projection (131), wherein an upper cutting line (132) is formed between the upper body (100) and the lower body (102) except for a non-cutting portion and a vertical cutting line (133) is formed; and a pull-tab (106) to allow the upper body (100) and inner cap (114) to be removed from the bottle by a user. There is further provided a bottle cap comprising an upper body, a side portion, a bottle plug, and a circumferential ring; a lower body including a vertical cutting line and a circumferential groove; and a pull-tab, integrally fixed to one side of the vertical cutting line.

Abstract: A package for flowable media and a snap lid which package and snap lid are both made from thermoplastic material, in which a collar-shaped head of the package surrounds a pouring aperture of the package, which collar-shaped head has a retaining ring on its outside, an inside annular surface, and an upper end having an edge with a snap catch, which upper end can be closed using the snap lid. The snap lid has a closing wall from which an annular sealing lip projects towards an inside of the package, and can be brought into contact with an inside surface of the edge in sealing engagement. The closing wall is provided with an outside catch for snap engagement with a snap catch of the edge of the head. The head of the package widens outwards and upwards at its edge, and both the inner surface of this edge and an outer surface of the sealing lip on the snap lid are curved convexly relative to each other. The invention also includes preforms for making the package of the invention.

Abstract: A cap and container assembly can be opened and closed repeatedly and continue to achieve a good seal between the cap and the container. The good seal results from the engagement, of the container neck with cap protrusions, which temporarily deforms the shape of the container and/or the cap as the cap is secured to the container.

Abstract: A cap and container assembly can be opened and closed repeatedly and continue to achieve a good seal between the cap and the container. The good seal results from the engagement, of the container neck with cap protrusions, which temporarily deforms the shape of the container and/or the cap as the cap is secured to the container, and from stopping surfaces which limit the extent of that deformation.

Abstract: A closure arrangement for a container has a container neck, having slanted grooves extending in a circumferential direction of the container neck. A removable cap has a clamping projection for each one of the slanted grooves, wherein the clamping projections slide in the slanted groove when the cap is removed from or fastened to the container neck. Each one of the grooves is delimited by two opposed slanted surfaces. The width of the slanted grooves measured in the circumferential direction matches the size of the clamping projections in the circumferential direction.

Abstract: A tamper-evident, snap-on, screw-off closure is used with a specially shaped container neck. The neck has double lead external threads and, below the threads, a conical wall having external ratchet teeth. The closure has an upper skirt having internal threads mating with the neck threads. A conical lower skirt is connected to the upper skirt by a plurality of frangible bridges. The lower skirt has internal ratchet teeth to mate with the neck ratchet teeth. The cap skirt threads are double pitch and slightly over 360° in length. When the cap is applied to the neck it snaps on in two stages. The lower skirt has a tear tab which, when pulled, fractures the lower skirt on a vertical line. Continued pulling on the tab sequentially fractures the bridges.

Abstract: A self-centering container closure includes a locator annulus which extends downwardly from the undersurface of the crown, radially inwardly from a resilient fin. The annulus extends downwardly by a distance greater than the fin and has an outer diameter slightly smaller than that of the inner diameter of the neck of the container with which it is to be used. The annulus assists with centering the closure on the container as the closure is screwed onto the container.

Abstract: A molded closure for use with a container includes a top wall defining a generally planar inner surface and a skirt depending from the top wall generally perpendicular thereto. The skirt includes a container engaging member formed therein. The closure includes a retaining projection formed in the top wall contiguous with the inner surface and extending therefrom inwardly of the closure. The projection extends from the surface perpendicular thereto and defines at least a pair of mold binding surfaces perpendicular to the top wall surface. The binding surfaces are formed in facing relation to one another. The closure is formed in a heated state, and as the closure cools, at least the binding surfaces exert a binding force on the mold block at a location forming a part of the projection to momentarily retain the closure bound to the molding apparatus.

Abstract: The present thermoformed containers are recloseable and resealable. This is accomplished primarily by providing a thermoformed container with a threaded neck and the use of a conventional type of closure on the threaded neck of the thermoformed container. The threads are on the neck and preferably also on an outwardly extending peripheral edge on the neck. This outwardly extending peripheral edge is created in thermoform molding. The neck preferably also is in the form of a two or more ply structure and in a further preferred embodiment the neck is reinforced by the closure. The closure in the embodiment of external threads on the neck has a reinforcing plug. In this embodiment the reinforcing plug fits into the neck adjacent the inner wall of the neck while the threads of the closure contact the exterior wall of the neck. In the embodiment of internal threads on the neck the closure can have a skirt which is in close contact with the exterior wall of the neck. This will likewise reinforce the neck.

Abstract: A tamper evident closure for use in the neck of a container has a plurality of severable connectors, connecting a tamper evident band with a hinged flange to the lower edge of a skirt. A support wall is located just inside the connectors where the connectors are attached to the lower edge. The connectors are strong enough to remain in tact during installation and transport, but weak enough to sever when the closure is subsequently removed from the container. The closure has severable connectors connecting a tamper evident band to a lower edge of a skirt. The connectors are at a 45.degree. angle relative to vertical when the container is in an upright position. In a further embodiment, a closure has a block seal that is thin enough to be easily removed from the mold in which the closure is formed without opening the mold in two directions. The block seal is thick enough to provide a solid seal between the closure and the container when the closure is installed on the container.

Abstract: A tamper-indicating container-closure package assembly is composed of a container including a base, a sidewall portion extending upward from the base, and a finish portion connected to an upper region of the sidewall portion defining a mouth of the container. The finish portion includes a threaded portion located inside the mouth which can include at least one interruption for allowing venting of the container as a closure is removed. A seal seat is recessed inside the mouth, yet is situated above the threaded portion, while a radially outwardly bulbous portion protrudes outside of the mouth.

Abstract: A container and closure assembly, affording a simple, quick, ergonomical, and reliable closing operation, provides an intermediate, partly open position that is reliably indicated. The distance of rotation of the closure relative to the container necessary for closing the closure is short, so that quick and simple closing of the container is provided. The closure is mounted to the container by a projection that is cooperatively received in a track. Either the closure or the container may be provided with the projection, the other being provided with the track. In a preferred embodiment, the track includes a protuberance that hinders the movement of the projection past a predetermined position along the track.

Abstract: A container, preferably of small capacity, such as a school milk plastic bottle, has a neck having an in-turned lip flange, a vertical surface spaced below the lip flange and an external shoulder below the vertical surface. A second external shoulder below the first-mentioned shoulder is preferably slanted upwardly-outwardly. A cap for the neck has a top and a skirt depending from the top formed with internal bead segments which snap under the first mentioned shoulder. The lower edge of the skirt fits tightly against the second shoulder to prevent the fingernails from being used to overcome the tamper-evident feature of the cap. A tear tab (preferably chevron-shaped in cross-section) depends from the skirt. An external, vertical scoreline adjoins the tab and at its upper end is adjacent a second scoreline which is formed on the interior of the top. Pulling the tab tears the skirt from the top for about 342.degree. of its circumference.

Abstract: A negative-pressure-resistible leakage-proof bottle cover, wherein a leakage-proof gasket is disposed. A circular main body of the leakage-proof gasket is stuck onto inner top face of a cover body, wherein an extended positioning circumferential edge is commensurate with a confining stopper of the cover body. The bottom face of the leakage-proof gasket is extended to form an infiltration resister, whereof the open end is further extended in out- and- up direction to form an infiltration-resisting ring. At a lower portion of the cover body, an anti-tampering ring is arranged, wherein a plurality of seamless cutting lines is round-set and a bridge point is formed in each of the seamless cutting lines.

Abstract: A container and a removable closure, the container having an outlet with an inner and outer surface terminating at one end in a rim. The closure includes an end wall with an inner and outer skirt extending therefrom, the inner and outer skirts defining between them a slot which when the closure is applied to the container receives the container rim. The inner skirt includes a sealing section, and a deflecting section in the region of the free end of the inner skirt. The cross-sectional areas of the region and the cross-sectional area of the inner surface of the outlet being such that when the closure is applied to the container the deflecting section of the inner skirt engages the inner surface of the outlet to force the inner surface of the outlet adjacent the rim into sealing engagement with the sealing zone to seal the closure to the container.

Abstract: The invention provides a safety seal device which includes a tear-off strip and a band section. The band section is subdivided into circular arc sections and U-shaped sections. The band section is provided with wedge-shaped locking elements. In addition, the band section is joined to the body of the screw cap via first breakaway webs. The U-shaped sections form spring elements in the band section thereby elastically suspending the locking elements. For this reason, the locking elements can elastically give when the screw cap is first screwed on, so that the safety closure cannot be plastically deformed when the screw cap is screwed on, which would jeopardize its security.

Abstract: A container assembly comprising a container for containing a fluid and a container closure. The container includes a neck having a mouth therein for passage therethrough of liquid in the container. The container closure comprises a closure cap portion adapted for releasable connection to the neck of the container. The closure cap portion comprises a generally annular-shaped skirt and at least three lugs extending generally radially inwardly from an inside surface of the skirt. The container further includes at least three bayonet provisions on an outer surface of the neck for matably receiving the at least three lugs of the closure cap portion, the bayonet provisions and the lugs being shaped and configured to releasably lock the skirt of the closure cap portion to the neck of the container.

Abstract: A child-resistant adult-friendly prescription storage vial is presented with an over-cap which can only be removed from the vial by first orienting the cap at a particular point on the vial and then depressing a pair of push-tabs on the cap. When the cap is properly oriented the push-tabs mechanically operate a pair of locking tabs on the vial which hold the cap in place. The locking tabs are designed so that an extended lip on the tab interlocks with a slit on the cap and can only be removed from the slit when the push-tabs on the cap are manually operated.

Abstract: A tamper-evidencing, snap-on, screw-off closure is used with a specially shaped container neck. The neck has a neck stretch with multiple neck threads and a locking wall below the neck stretch with a plurality of external teeth. The closure has an upper skirt with multiple closure threads which mate with the neck threads and a tamper-evidencing band with a plurality of internal teeth shaped and positioned to engage the external teeth. The teeth are shaped to guide the teeth into side-by-side interengage during axial application of the cap to the neck.

Abstract: Disclosed is a closure for a container, such as a blow molded jug having a neck surrounding an opening therein, the closure having a first annular portion and a second annular portion. The first annular portion in the closure has a wiper seal and a lip seal. The second annular portion exerts an upward pressure on the lip seal which causes improved sealing and leak-tight properties during shipping, handling, etc. The upward pressure also enhances the effectiveness of the wiper seal. The second annular portion may include an annular tear skirt having a pull tab for the removal thereof to facilitate removal of the closure from the container. The closure may also include a plug seal, and a lower annular portion extending from the second annular portion.

Abstract: A closure for a container having an open top surrounded by a container wall. The closure includes a top wall from which a hollow insert depends for reception within the opening of the container and further includes an outer skirt that depends from the top wall for releasably engaging an outer face of the container wall. The insert has a first seal and a second seal for sealingly engaging the inner face of the container wall. The second seal is formed upwardly of the first seal, and a channel is formed between the seals to prevent leakage through capillary action.

Abstract: A tamper-indicating closure is used with an associated container having a finish having an external thread formation thereon, and an annular locking ring located axially under the thread formation. The closure includes a closure cap having a circular top wall portion defining an outermost edge and a top wall extension region. The closure cap includes an annular skirt portion depending from the top wall portion inwardly of the outermost edge. An internal thread is formed in the skirt and defines a skirt wall plane. The closure includes a plurality of ribs extending from the top wall extension region to define an enlarged grasping region to comfortably fit a user's hand. An annular tamper-indicating band depends from the cap and is detachably connected to the cap by a plurality of circumferentially spaced, frangible connectors extending between the band and at least some of the ribs. The band includes an internal surface configured for engaging the locking ring and separates the band from the skirt portion.

Abstract: The combination of a reusable lid and a container, the lid being provided with external threads and the container being provided with internal threads adjacent its upper end for mating with said external threads. The lid is assembled to the container by engagement of the external and internal threads on the lid and container respectively. Preferably the lid has a sealing ring disposed adjacent to the underside of an outer peripheral ledge for engagement with a selected portion of the container, so as to tightly seal off the contents of the container. A latch element is formed on the lid for engagement with a cooperating catch element formed on the container. The latch element prevents removal of the lid from the container until the latching element is released from the catch element.

Abstract: A sealed container includes a base jar for containing a substance and a removable lid for closing and sealing the base jar. The base jar includes a bottom wall, a side enclosure extending upwardly from the bottom wall having an upper portion with a screw thread, and an upper wall extending inwardly and upwardly from the upper portion of the side enclosure having a circular brim which defines a wide mouth opening for the base jar. The removable lid includes a top wall and an encircling member extending downwardly therefrom with a screw thread which matingly engages with the screw thread of the upper wall of the base jar. For sealing with the base jar, the removable lid also includes a circular projection extending downwardly from the lid which engages and seals with the circular brim.

Abstract: A combination container and closure provided with matching, engaging lugs or a ring on said closure and said container and an interior ring on said closure fitting within the opening on said container.

Abstract: The top (2) of a sheet metal container (1) for the transportation and storage of liquids has a central fill opening (3) which is edged by a neck (5) which is perpendicular to the top surface (4) of the container. A plastic or metal ring (6) with an external thread (7) is pressed down against the top surface (4) by the upper edge (8) of the neck (5). The neck is swaged outwardly. The threaded ring (6) is protected against rotation by form-fit connections on the neck (5). A plastic screw cap (11) into which a disc-shaped insert (12) of special steel is pressed, is screwed onto the threaded ring (6). Between the outside edge (13) of the cap insert (12) and a ring projection (14) of the latter, an annular groove (15) for holding a gasket (16) is molded into the insert, and by this gasket (16) the screw cap (11) is sealed against the upper edge (8) of the neck (5).

Abstract: A lid for use on a holder with a candle disposed therein, the holder having a lip defining an open mouth. The lid includes a central cap and a projection depending outwardly from the central cap. The projection includes an inner wall, which is configured to surround and abut the candle in the holder when the lid is in place on the holder, and an outer wall, which is configured to abut the holder when the lid is in place on the holder. A peripheral flange extends outwardly from the outer wall and is configured to abut the lip of the holder when the lid is in place on the holder. In another aspect, a candle package includes the lid, in combination with the holder and the candle. Also, a method of packaging a candle utilizes such a candle package.

Abstract: A composite closure for a container having a ring shaped cap with a ring shaped top and an annular skirt depending downwardly from the outer periphery of the top. The skirt is provided with internal threads for engaging external threads on the container neck. A disk shaped lid insert has its outer peripheral edge annularly received in an annular internal lid retaining groove in the cap which permits relative rotation between the lid insert and the threaded cap. An elastic annular seal is received in an annular groove provided in the bottom side of the lid insert for sealing the upper edge of a container.

Abstract: In the case of over-tightening of the closure-cap on a beverage bottle (through turning in the wrong direction) there is the risk that, due to the high internal pressure, not only will the thread jump, but also that the cap will be ejected directly from the container. In order to avoid this risk, the invention proposes a screwable closure-cap with security against over-tightening. This cap possesses a ramp element (3) on the end of the thread oriented towards the cap-base, said ramp element being able to engage with the thread-start of the container mouth in the case of over-tightening of the closure-cap. As a result, the cap-wall in the area of the ramp element will be forced outwards in the case of over-tightening so that jumping of the thread in this region will be facilitated. In this way, jumping of the thread on one side only--on the ramp element side--will be achieved when over-tightening is continued, so that ejection of the closure-cap will not be possible.

Abstract: A squeeze contour seal assembly includes a container and a cap. The container has a neck portion which forms an opening. The neck portion has first and second wall thicknesses and screw threads for engaging the cap. The first wall thickness is greater than said second wall thickness. The cap has grooves for engaging the screw threads and a plug seal for releaseably engaging the opening when the screw threads and the grooves are threadably engaged. The second wall thickness engages a slot formed between the plug seal and the cap, thereby creating an interference fit between the neck portion and the plug seal and providing a leak free seal.

Abstract: A closure for a beverage bottle includes a plug element having a disk shaped head portion and a hollow cylindrical portion which seals with the inner surface of the opening of the bottle. An annular projection is formed around the circumference of the bottle 12 near its mouth. The closure further includes a cap element which fits over the plug element and which includes with a skirt having an annular recess which locks onto the annular projection of the bottle. A first precut line is provided in the cap, extending around its circumference and a second precut line portion extends from the distal edge of the skirt to the first precut line across the annular recess. The cap may be disengaged from the bottle by cutting through the second precut line and the first precut line.

Abstract: A combination of a container and a lid is provided. The container has an inner peripheral surface around an opening to the container interior. The lid is movable between (1) a closed position to cover the opening, and (2) an open position to expose the opening. The lid has (a) a peripheral wall, (b) a peripheral hinge that extends from the wall, (c) a plug seal wall that extends from the peripheral hinge, and (d) a central portion that extends from the plug seal wall. When the lid is in a closed position, the lid is displaceable from an outwardly projecting configuration wherein the plug seal wall is held in a non-sealing condition disengaged from the inner peripheral surface to an inwardly deformed configuration wherein the plug seal wall is held in a sealing condition engaged with the inner peripheral surface.

Abstract: The present invention is a pressure equalizing and foam eliminating cap for a container. Pressure equalization and foam elimination is accomplished by designing the cap so that it can be rotated between a fully closed position, a gas venting position and a fully open position. This is accomplished in several ways. A first embodiment includes a spring biased, gas separation membrane between the cap and the mouth of the container. A second embodiment includes a finely, transversely perforated, annular plug on the underside of the cap and a seal between the plug and the interior of the neck. Alternatively, in this embodiment, the perforations may be larger and protected by a gas separation membrane. A third embodiment is similar to the second but incorporates two seals, one above and one below the perforations. In this embodiment also, the perforations may be larger and protected by a gas separation membrane.

Abstract: An anti-backoff closure assembly includes a container and a cap. The container has a neck portion forming an opening and having a protrusion and screw threads on an outer surface of the neck portion. The cap has on an inner surface a second protrusion, grooves, and a seal for releasably engaging the opening of the neck portion to form a leak free seal. The first and second protrusions engage to create an interference fit when the screw threads and the grooves are threadably engaged. Upon engagement, the second protrusion deforms the first protrusion sufficiently to form an indentation on the first protrusion that resists backoff as the pressure between the screw threads and the grooves is reduced as a result of plastic relaxation, thereby maintaining the leak free seal of the seal within the opening.

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 closure cap for sealing containers without gas bubbles displaces some of the contents of the container when fitted onto the neck of the container and at the same time allows any trapped gas to escape through one or more vents before the closure cap engages in the closure position.

Abstract: A double ended bottle having two narrow necks at opposed ends of the bottle. Sloped shoulders provide gentle transition between each neck and the full width of the body of the bottle. The bottle is internally open and unobstructed so that a common chamber extends from one opening to the other. Each neck has a threaded cap having two features for sealing against leaks past the cap. In one feature, an internal projection formed in each cap plugs the neck of the bottle. In an alternative embodiment, the neck has a separate adaptor or insert for reducing throat diameter. If this is provided, the projection is accordingly sized. Both the projection and the throat of the insert are beveled for centering the projection within the bore of the insert. The second sealing feature includes an external flange formed on each neck between the threads and the body of the bottle, and a corresponding groove formed in the cap.

Abstract: The invention concerns a plastic screwable closure cap which possesses a bung type internal seal (4) for sealing a closeable container. The internal seal comprises a narrow sealing portion with an insert portion (6) immediately beneath, said insert portion serving to centre and gently introduce the internal seal. In order to attain the earliest possible venting of the closure cap when screwing off, venting recesses are provided on the insert zone (6). These prevent the insert portion from sealing the container, and enable the release of gas from the container as soon as the sealing portion comes out of engagement with the container mouth. The side surfaces of the vent recesses also serves as friction surfaces, in order to generally flatten irregularities on the container mouth before the actual sealing portion is engaged.

Abstract: This device comprises, on the one hand, a stopper fixed to the neck of the container, having a skirt intended to do the fixing to the exterior wall of the container, a central hollow shaft resting against the internal face of the neck of the container and a closed end having an off-centered opening connected to the central hollow shaft by an oblique passage and, on the other hand, a cap which, mounted on the stopper, has an exterior skirt mounted so that it can pivot on the skirt of the stopper, a central hollow shaft engaged in the central hollow shaft of the stopper and in contact therewith, the skirt and the hollow shaft being connected by a closed end including an outlet opening for the product, which opening is situated the same distance away from the axis of rotation as the opening of the stopper, and the hollow shaft including an orifice formed on the same side as the opening in the closed end and at the same height as the oblique passage of the stopper.

Abstract: The closure cap of a closure and container package for a pressurized liquid is designed with a sealing flange which depends from the cap top at an angle to a sealing location on the container wall so that an increase in container pressure will increase the sealing force of the flange against the container wall. A pressure relief passage is provided downstream of the sealing location.

Abstract: A vessel and closure assembly for culturing cells wherein a gas permeable membrane is provided in the closure to allow rapid and uniform equilibration of gases between the atmosphere of the vessel and the atmosphere of the incubator. A plug is provided for occluding passage of gases through the gas permeable membrane when the vessel is removed from the controlled atmosphere of the incubator.

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: A tamper-evident, snap-on, screw-off closure is used with a specially shaped container neck. The neck has at least one first helical thread on an upper neck stretch portion, and a first tamper-evident structure having a first locking member. The closure has an upper skirt having at least one second helical thread mating with the first helical thread of the neck. The closure includes a second tamper-evident structure having a second locking member shaped and positioned to engage the first locking member when the closure is applied to the neck.

Abstract: A container lid has a depending insert having a thickness sufficient to have a groove formed in its peripheral edge, and a beverage container has an annular, radially inwardly extending protrusion formed in it that snaps into the groove when the insert is inserted into the container. The connection is so strong that the lid will not separate from the container even when the cup is filled with a beverage or food and inverted. The lid includes a peripherally positioned handle that enables facile removal of the lid, and the interconnection between the lid and the container includes a double seal that inhibits the risk of spillage.

Abstract: A fitment and closure assembly useful with a gable-topped carton having a gable-forming panel with a pouring hole, through which contents are pourable from the carton, is molded from low density polyethylene. A fitment having a tubular spout formed with an external thread and an annular flange extending outwardly from the tubular spout, below the external thread, is attachable to the gable-forming panel so that the annular flange is attached to the gable-forming panel, around the pouring hole, and so that the tubular spout extends upwardly from the pouring hole. A closure having an upper wall, a tubular skirt with an internal thread and an upper shoulder, and a plug seal forming an annular recess between the plug seal and the upper shoulder is threadable onto the fitment so that the external and internal threads are interengaged and so that the upper end of the tubular spout enters the annular recess with an interference fit.