Abstract: In a thermoplastic closure unit for a container (1) for the handling and storage of flowable products comprising a substantially tubular pouring part (3) and a closure part (5) sealing the opening of the pouring part, a coating (12,19) is applied to the pouring part and the closure part for protecting the product. Such coatings can be applied to the inside, to the outside or to both sides and can e.g. be provided for protecting the product against the action of oxygen.

Abstract: A perfume carrier including a casing made of impact resisting material and defining a holding chamber, a compression spring received inside the holding chamber, a perfume bottle received in the holding chamber and supported on the compression spring, and a bottle cap detachably fastened to the casing through a screw joint to seal the perfume bottle and having a perfume application rod, which is inserted into the perfume bottle when the bottle cap is fastened to the casing.

Abstract: A plastic beverage closure comprising a base wall, a peripheral skirt and a plurality of threads on the inner surface of the skirt for engagement with the threads of a container which may be made of glass or plastic. The plastic closure includes a compression molded seal extending about the periphery of the inner surface of the base wall and the juncture of the base wall to the peripheral skirt. The closure includes a central axially thickened portion; a channel surrounding the thickened portion and extending radially to an annular radially thickened portion on the skirt at the juncture with the base wall. A concave surface extends from the base of the channel and merges with the surface of the annular portion. A compression molded liner is provided on the thickened portion, channel and concave surface of the closure and defines a planar sealing surface of contact with the end surface of the finish of a container and an arcuate surface for engaging the arcuate surface of a container.

Abstract: A polyethylene cap, for use with containers, particularly polypropylene containers for containing medical specimens in preservative fluid such as formaldehyde, is provided with a 3-face seal, wherein a rim portion of the container is trapped in sealing, contacting relation on three mutually adjoining faces, whereby any tendency of the container rim to "relax" out of sealing engagement with a contacting face portion of the cap is effectively precluded by the fit and the geometry of the cap seal. In the case of polypropylene, which is susceptible to such "relaxation", the subject cap enables the effective sealing of polypropylene containers so that advantage may be taken of the superior properties of polypropylene in non-reactive, secure containment of possibly contaminated medical specimens in liquids such as formaldehyde, a known carcinogen.

Abstract: A one-piece plastics closure for a carbonated beverage bottle has a sealing ring which extends inwardly and downardly towards the closure mouth from its attachment to the closure body. When the closure is fitted the ring extends around the outer radius and over the annular top face of the bottle neck, backed by a stepless abutment and reaction surface of the closure body. The latter surface engages the sealing ring mechanically above the container top face to determine the fitted position of the closure and create a seal when the pressure in the bottle is low. When the product pressure is high, however, the effective seal is made between the sealing ring and the outer radius of the bottle neck. For that purpose the abutment and reaction surface is roughened, so allowing access for the product pressure to the back of the sealing ring.

Abstract: A container closure comprising a container closure shell and a resin liner applied to the inner surface side of the shell, wherein the resin liner is constituted by an upper layer portion which is composed of a resin composition containing such additives as disoxidation agent, drying agent, deodorant, antibacterial agent and thermo color agent and which forms a panel portion on the inside of the hermetically sealing portion, a lower layer portion which is composed of a thermoplastic resin having cushioning property and elasticity and which is interposed between the upper layer portion and the top surface of the shell to join them together, and a hermetically sealing portion which is formed on the outer peripheral side of the panel portion integrally with the lower layer portion.

Abstract: A threaded closure and container arrangement having complementary annular surfaces on the closure and container which engage each other during threading and unthreading to guide the closure and container into axial alignment and to shape the relatively flexible neck opening of the container into an accurate circular shape so that complementary sealing surfaces are brought into accurate engagement with each other and so that the complementary surfaces maintain an axial force tending to maintain the closure and container in sealing relationship during at least initial unthreading movement of the closure from a fully closed position on the container

Abstract: To permit a container and a cap to remate with each other during resealing without fouling by solid debris such as small particles without exceptional preparations to withstand the deteriorating effects of corrosive materials and solvents and to consistently and quickly form a gas-tight seal, the container has a flat angled surface and the cap has cooperating edge that engages the flat surface in a closed line when the cap is fully inserted with a solid closed surface within the line, the closed line having a width perpendicular to its length within a range of 0.5 millimeters to 1.5 millimeters. The cap is closed by screw threads or the like that force the cooperating surfaces together with a pressure of at least 100 psi at an angle of between 75 degrees and 105 degrees.

Abstract: A gasket for sealing a channel of a mounting cup to a container bead including at least one protrusion at an end of the gasket for retaining the mounting cup in position on a container bead prior to clinching. Six such protrusions can be equidistantly positioned about the gasket. A gasketed mounting cup including such protrusions is also disclosed. A method for manufacturing such a gasketed mounting cup is disclosed as well.

Abstract: A plastic container closure package with a linerless sealing closure system comprising a plastic container having a threaded finish for receiving a closure having a base wall and an internal skirt with complementary threads on the skirt. The plastic container is made by a process wherein a tube of molten plastic is inflated and blown to form the container and thereafter the tube is trimmed to form the sealing surface of the finish of the container. The closure includes an annular flange that extends downwardly from the underside of the base wall of the closure and radially inwardly of the closure for engagement with the container. The annular flange includes a smooth continuous frustoconical surface that faces the finish of the container and engages the inner edge at the juncture of the top surface and inside surface of the finish of the container. An annular stop extends axially from the underside of the base wall of the closure to limit the flexing of the annular flange.

Abstract: A plastic closure including a base wall having an inner surface, a peripheral skirt extending from the base wall and a liner on the inner surface of the base wall. The liner includes (a) an ethylene vinyl acetate composition, (b) a primary fatty acid amide and (c) a bis-fatty acid amide. Preferably the primary fatty acid amide comprises an oleamide or an erucamide, and the bis-fatty acid amide comprises ethylene-bis-stearamide.

Abstract: A plastic closure cap of the present invention includes a plastic interior liner. The cap and the liner are bonded by melting them to one another without penetrating either the cap or the liner. The bond between the cap and the liner is extremely durable and resistant to solvent vapour action.

Abstract: A molded screw-threaded plastics closure has depending from the underside of the top an annular sealing portion spaced inward of the skirt. The sealing portion includes a plug part with a sealing rib for engaging the internal surface of the neck of a container, a radially outwardly projecting flange above the plug part, and a waisted pivot part disposed between the flange and the top. As the closure is applied, the sealing rib first moves into sealing engagement with the bore of the neck of the container, and then the flange comes into engagement with the top of the neck of the container and causes the sealing portion to pivot outwards about the part to tighten the seal. An internal rib on the skirt engages the outer surface of the neck of the container to form a secondary seal. Forms of stop may be provided for limiting the movement of the closure and/or the pivotal deflection of the sealing portion to prevent over-tightening during application of the closure.

Abstract: A closure device for a front side of an in particular evacuable cylindrical housing comprises a cap surrounding said front side of said housing with a front wall in which a borehole is arranged. A sealing device is arranged between the borehole and an internal cavity of the cylindrical housing. The cap is connected to the sealing device and/or the cylindrical housing by means of a coupling device.

Abstract: A linerless plastic closure is configured for side-sealing engagement with an associated container. The closure includes a circular top wall portion, and an annular skirt portion depending from the top wall portion, and including an internal thread formation. A two-component side-seal arrangement is provided which includes a relatively rigid support annulus, and a relatively flexible sealing lip. The sealing lip is movable into a position for sealingly engaging a generally outwardly facing surface of an associated container, with the relatively rigid support annulus desirably acting to enhance the sealing effect of the sealing lip. Notably, the relatively rigid sealing annulus further desirably acts to provide a self-centering action for the closure during application to a container.

Abstract: A dispensing assembly includes a seal that is induction-bonded to an outlet of a container. A cap is detachably connected to the container over the seal to protect the seal during shipping. Once the cap is removed, the seal can be peeled away from the outlet. The absence of the seal can be observed when an attempt is made to reconnect the cap to the container after the seal has been removed.

Abstract: A bottle for packaging beverages for individual use, comprising a wide mouth container and a closure lid; the container having a neck with a circular opening; the closure lid having a concentric inner skirt and outer skirt; the container and the closure lid having corresponding fastening means for opening and closing the container; the corresponding fastening means respectively located on an inner circumferential area of the circular opening of the neck and on an outer circumference of the inner skirt; the outer circumferential area of the neck being smooth; the outer diameter of the neck being equal to the inner diameter of the outer skirt, wherein the outer skirt covers and protects the smooth outer circumferential area of the neck when the closure lid is fastened to the container, the environment outside the bottle.

Abstract: An integral blow molded bottle having a neck, a thread surrounding the neck and a collar at the top of the neck. A circumferential flange is provided on the outside of the top of the collar and a support column is provided on the inside of the collar for limiting threading of a cap down on the neck. A circumferential groove is formed in the outside of the collar to prevent bottoming of the flange by a cap threaded onto the neck.

Abstract: A package having means for producing an audible signal, such as a "click", which signals the consumer as soon as a predetermined level of engagement between a container and a closure has been achieved. Normally the desired level of engagement establishes some type of seal between the package components which contact one another. In a particularly preferred embodiment, a semi-rigid polymeric container having a discharge orifice, a sealing member preferably comprising a filter support member secured across the discharge orifice of the container and a closure having attachment means capable of forming a substantially gas-tight atmospheric seal between all three components upon initial closing of the package to the atmosphere is provided. The container and closure are further provided with interfering projections, at least one of which is resiliently deformable, which will contact one another only after the sealing member has been removed from the package and discarded and the closure reapplied to the container.

Abstract: A container closure comprising a rigid lid and a separably formed flexibly resilient seal mounted thereto. The lid includes a top panel with a depending annular flange. The seal includes a solid central panel with an upwardly directed integral flange peripherally thereabout and receiving the lid flange. The seal flange mounts opposed pivot points engageable with the upper edge of a container and defining a pivot axis. A positioning rib extends peripherally about the seal flange between the pivot points for seated engagement on the upper edge of the container.

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: 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: The present invention is a seal for a container closure which is characterized by the fact that associated with the sealing lip (3) is an actuating arm (5) by which the sealing lip can be swiveled. The seal is part of a container closure (1) with a side wall (11) and a bottom (15). When the closure is screwed onto a container, the actuating arm is swiveled counterclockwise, this swivelling movement being facilitated by a deliberate attenuation (17) in the region of the bottom (15) of the closure (1). A counterclockwise swiveling movement of the actuating arm (5) also causes the sealing lip (3) to swivel counterclockwise and thus to lie against the outer wall of the container. A sealing surface is created not only between the container and the actuating arm (5), but also between the outside of the container and the sealing lip (3).

Abstract: This relates to a closure for a container in the form of a closure cap which is provided with a mechanically actuated button. The button is centrally located and is generally in a recessed position. The button is surrounded by a plurality of dished areas which, when the closure is applied, will engage the end sealing surface of a container and cause a deflection of the dished areas which will result in an annular portion of the closure surrounding the button to invert and to project the button axially upwardly from its original recessed position to a projecting position. The closure may be enhanced by other tamper indicating arrangements which are sealed to the closure by way of a translucent panel overlying the end panel of the closure and being bonded at its periphery to the closure. The translucent panel will be provided with a layer of material generally axially aligned with the button and the button will be provided with a layer of adhesive, preferably contact adhesive.

Abstract: A disposable cover and bag assembly comprising an outer cover member adapted to be connected to the open end of an outer canister and having a top including therein an opening, an inner cover member in the opening in the top of the outer cover member, and a bag having a mouth gripped between the inner and outer cover members.

Abstract: A closure seal for sealing a closure to a container land surface includes the application of a sealing material to the land surface just prior to the engagement of the closure and the land surface so that the sealing material may fill in any gaps, imperfections, or misalignments between the land surface and the opposing surface of the closure. In addition, the underside of the annular portion may be provided with a plurality of depending, variable length annular sealing beads which engage the land surface to effect a leak-proof seal.

Abstract: A container assembly has a container with a body and an elongated neck of generally circular cross section and having threads adjacent its upper end. The neck also has a ring adjacent its lower end with a downwardly and outwardly flaring surface. Engaged on the neck is a cap with an elongated tubular body portion extending downwardly about the neck. The inner wall of the body portion adjacent its upper end has threads which are engaged with the threads of the neck, and the inner wall of the lower end of the body portion tapers downwardly to a greater diameter and resiliently bears against the outer edge of the ring.

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 container-closure system is provided for housing or containerizing a product, which comprises a container body having at least one free end about its perimeter which forms an opening on said container for receiving or discharging said product, and an end portion having a central lid portion and a free end about its perimeter, wherein the end portion is positioned adjacent the container opening such that the container body and end portion free ends are joined together as a seam about the container body opening periphery to join the container end portion to the container body, and to form an annular curled seam projection comprising at least a single curled wall of plastic integral with the container body free end periphery or the end portion free end; and wherein the thus formed annular curled seam projection provides a compressible surface adapted for engaging a cap in sealing arrangement.

Abstract: A closure for a container for use in resisting child opening thereof and for recording an act of tampering therewith. This closure has an outer cap and a liner and an inner cap coaxially disposed along a common axis. The inner cap has an outer surface with peripheral groove portions and axial groove portions. The outer cap has an inner surface with a pair of radially protruding spikes which are received and travel in the groove portions for resisting child opening thereof. The liner has a shearable, indicia-marked top foil and a top adhesive attached to the interior surface of a top transparent end wall of the outer cap, and has a bottom, indicia-marked foil with a bottom adhesive attached to the exterior surface of a top end wall of the inner cap, and has an adhesive strip disposed between the two foils, for recording an act of tampering therewith.

Abstract: A composite closure with a side seal proportioning lip is disclosed, with the closure including an outer plastic closure cap, and a plastic sealing liner positioned adjacent a top wall portion of the cap. The sealing liner includes a central disc-shaped portion, and an integral relatively thick, annular sealing bead portion. The closure is thus configured to effect a "top/side seal" with an associated container. The construction includes an annular liner-retaining lip having a relatively flexible annular inner edge portion which coacts with the sealing bead portion of the liner to self-adjust and proportion the degree of sealing engagement between the sealing bead portion of the liner and the associated container.

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 cap closure having a top member with a center opening, a dependent skirt and a liner. The liner has a central raised portion, which may be concave, which mates with the center opening in the top member by an interference fit, thus retaining the liner in the center opening and under the top member.

Abstract: A closure including a standard threaded cap having a tamper indicating band depending from the cap skirt by frangible webs. The tamper indicating band has an inwardly directed bead which cooperates with a flange on the container neck which allows the band to rotate with the cap but prevents the band from being removed past the container flange. Alternatively the tamper indicating band contains spaced ratchet teeth which engage ratchet teeth on the container neck to prevent further rotation. A rotary seal is provided between the cap and container neck which is effective for an axial length A greater than the sum of a distance B between the cap bead and the container flange when the cap is tightened or the axial movement of the cap in rotating the ratchet teeth into contact and the distance C which the frangible webs stretch before fracture. Thus the rotary seal prevents access to the product prior to breaking the tamper indicating band loose from the cap.

Abstract: When a gasket of thermoplastic material is moulded in a polypropylene cap, the adhesion of the gasket to the cap at temperatures below 200.degree. C. is improved by including an adhesion-promoting polymer of propylene in the thermoplastic composition.

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: An improved synthetic resinous molded threaded cap for use on necked containers permitting initial press fit installation and subsequent threaded engagement. The cap is provided with a tear seal, an inner surface of which provides mutual engagement of an inwardly projecting rib with a corresponding rib on the container neck. Rupture of the tear seal removes this rib and allows the cap to be threadedly engaged by further axial displacement of the cap upon the neck. The cap may be molded with a feathered free edge to facilitate removal from a mold without damaging the rib.

Abstract: A method for forming a linerless cap for a container, the apparatus for forming the linerless cap and the linerless cap. The cap has a peripheral skirt and a plastic lid with an annular wall adjacent the skirt extending upwardly therefrom, wherein the wall has an inner stretched, softened non-projecting sealing surface which upon engagement compresses and seals.

Abstract: A centrifuge tube assembly comprising a centrifuge tube and an inserter for placement within the neck portion of the centrifuge tube. The insert has a rigid portion and pliable portion.

Abstract: There is described a threaded dosing cap (1) for a container opening with internal thread (8) and front seal (9) as well as with a breaker type dosing cylinder (5) lying above the container opening in the closing position. A wetting of the container opening and surrounding region by the product running off out of the dosing cylinder (5) used is to be avoided by structural measures. According to the invention, the dosing space (5) is located above the container neck (3) as well as the front seal (9) thereof, and from the dosing space, as the cylindrical prolongation thereof, a product drain ring (6) extends into the container neck (3).

Abstract: A closure for use in connection with a capped container includes a seal liner provided with a tab portion, and adapted to seal the mouth of the container, a cap liner adapted to be adhered to the tab portion of the seal liner and releasably retained within the cap so that upon opening of the container as by unscrewing the cap, the cap liner is released from the cap and provides an enlarged gripping surface to enable the consumer to more easily open the container.

Abstract: A plastic bottle closure assembly comprising a plastic bottle having a threaded neck portion, a closure for engagement with the neck portion and a sealing plug. The sealing plug has an annular mating surface designed to engage an annular planer mating surface of the neck portion. The closure is provided with annular rib for engaging the plug so as to cause the inner mating surface of the plug to engage the mating section of neck portion of the bottle.

Abstract: The packing device has a cap insidely containing a cover provided with a seal corresponding to a bearing surface of the body of the packing device. The body forming lateral studs cooperates with protruding bearing surfaces formed by lugs defined by the cap.

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 lid or a cap in particular for spice shakers consists of a lid bottom and a wall which encircles the lid bottom and projects downwardly therefrom at a substantially perpendicular angle. The inwardly directed face of the wall is provided with ribs which extend in the axial direction of the shaker, are spaced apart from each other and which when the lid is fitted to the shaker and when the lid is removed from the shaker preferably cooperate with an encircling rib formed at the upper edge portion of the spice shaker.

Abstract: The invention relates to a device (1) for exposing a mass (3) stored in a container (2). Disposed in container (2) is a conventional follower piston (5), the dispensing opening (4) of container (2) being closed by a removable closure cap (11). For generating a vacuum between mass (3) and closure cap (11) there is provided a circumferential gasket (15) disposed between an outer wall portion (9) of container (2) and closure cap (11). For avoiding early wear of this circumferential gasket (15) and the resultant loss of its sealing properties, the invention provides that on removal of the closure cap (11) the circumferential gasket (15) is positively forced into sealing engagement with the outer wall portion (9) of the container (2) by a force generated by the removal of the closure cap and acting in the direction towards said outer wall portion.

Abstract: A sealing closure for a container, such as bottles, jars and the like includes a threaded cap and a single-piece gasket of resilient material. The interior surface of the top of the threaded cap is provided with a plurality of radially extending ribs in the vicinity of its periphery. The peripheral portion of the single-piece gasket contacts the ribs, the cap being positionable over the rim of the neck of a container and in threaded engagement therewith to seal the container. The gasket may be of frusto-conical shape with a longitudinal sleeve thereon, the sleeve fitting over a central stud which is integral with the cap. The stud may be so dimensioned and shaped in cross-section, and the sleeve similarly shaped and dimensioned to prevent relative turning of the cap and gasket with respect to one another during opening and closing of a container with the closure.

Abstract: A closure for a container having generally helical threads on the neck finish is formed from a one-piece cap shell of thermoplastic material including a top wall and a peripheral skirt, the skirt having a plurality of spaced, hard, flexible generally vertical thermoplastic ribs integral with the shell for contacting the threads of the container. Each rib is so constructed and arranged that it has sufficient resistance to cold flow that it only slightly flexes and bends around the thread to form a shallow indentation on the rib when the rib is forced into contact with the thread, the indentation being sufficient to provide purchase on the threads for removing the closure.

Abstract: A tamper indicating hermetically sealed package comprising a container having a neck with an opening and a closure. The container includes a first annular bead at the upper end adjacent the opening and a second annular bead spaced axially from the first annular bead and having a greater diameter than the first bead. The closure is made of plastic and comprises a base wall and a peripheral skirt. The base wall includes an annular bead on the internal surface thereof and the peripheral skirt includes an interrupted annular bead spaced axially from the base wall. A sealing gasket is cast in situ in the channel defined by the annular bead on the base wall and the peripheral skirt and extends to the interrupted annular bead on the skirt. A tamper indicating band is connected along a weakened line to the peripheral skirt and includes an interrupted annular bead that is adapted to engage the second bead on the container.