Abstract: An end closure assembly for a pressure vessel includes a non-metal universal head member positioned in an opening in the pressure vessel, wherein the universal head member has a size complementary to the opening in the pressure vessel, a retainer ring member engaged with the pressure vessel for retaining the universal head member in the opening in the pressure vessel, and a securing plate member engaged with the retainer ring member for securing the retainer ring member.

Abstract: A lid for a can comprising a tubular body (10) with an upper end affixing an annular upper wall (20), which internally defines a seat (21) for the hermetic seating of the lid (30), said lid comprising, in a single piece: a sealing portion (31), which is removably seated and retained in the seat (21) and provided with an upper edge (33); and a pair of handles (35) disposed around at least part of the upper edge (33) and having ends unremovably incorporated thereto at points angularly spaced from each other, said handles (35) being medianly displaceable from an inoperative position, substantially coplanar to said upper edge (33), to a raised operative position, after the breakable means (36) have been broken. The present lid may further comprise a seal strip (40) peripherally incorporated to the pair of handles (35).

Abstract: An aluminum container is comprised of a base portion, a substantially vertical wall portion extending upwardly from the base portion, a transition portion extending from the wall portion, and a neck portion extending from the transition portion. The neck portion is tapered and has an upper end having a wall thickness that is preferably less than the thickness of the wall of the remainder of the neck portion. The upper end of the neck portion may also be chamfered. The aluminum container of the present invention may be combined with a threaded sleeve to form a receptacle. The sleeve has an outer surface and an inner surface. The outer surface has threads thereon and the inner surface has a taper complementary to the taper of the neck portion so as to form a friction fit with the neck portion. The sleeve may also have a notch formed in the periphery of its upper outside surface.

Abstract: A dispenser assembly for dispensing a substance from a receptacle is provided. Preferably the collar therefore comprises outwardly projecting and elongated angled ribs for forming complementary elongated grooves in the outer surface of the ferrule. A method of assembling such a dispenser assembly upon a receptacle is also provided and comprises the important step of allowing the collar to rotate over the outer surface of the ferrule and towards the receptacle, such that the elongated ribs form complementary elongated grooves in the outer surface of the ferrule thereby forming an airtight seal between the dispensing assembly and the receptacle.

Abstract: A breech for a dual-component cartridge with a breech plug with two sealing bolts which can be inserted into the two mutually separated outlet openings at the cartridge throat and seal these openings tightly, and with a retaining nut that can be screwed onto the cartridge throat. This nut can turn relative to the breech plug and can be locked to it in an axial direction and released therefrom. In order that the breech plug will be held by the retaining nut without additional parts and so that it can again be easily separated from it, between the retaining nut and the breech plug a manual-detachable snap-in connection is formed by the relative movement of the breech plug in the axial direction.

Abstract: Apparatus is provided for sealing cylindrical materials containers such as paint cans and caulking tubes. The apparatus includes a cylindrical sleeve constructed of a semi-rigid, rubber-like material having a first open-base end, where the first open-base end opens into a cylindrical chamber, inner and outer cylindrical surfaces of which extend contiguously from the first open-base end to a second closed-base end of the sleeve. The inner cylindrical surface includes at least one annular bead or protrusion disposed thereon. The apparatus also includes a clamp for placement over an annular portion of the outer cylindrical surface disposed opposite the annular bead to compel a pressure seal by the bead with an outer surface of the materials container. Same features enable the apparatus to usefully and efficaciously seal an access opening in the materials container enclosed and clamped by same.

Abstract: The present invention relates to a resealable container with a twist opening end closure which is suitable for storing perishable solids and liquids, and in one embodiment an easy open tab feature to facilitate venting.

Abstract: The invention concerns a container having a barrel-like body and a fitting sealed lid which during transport and storage prevents contamination of the content, which permits multiple opening and closing without losses of sealing integrity and which manages without an elastomeric seal as an additional material component, which is distinguished in that at least in the braced condition the lid bears sealingly with respect to the body against at least two mutually spaced sealing locations which are peripherally continuous in an annular shape around the axis of symmetry of the container.

Abstract: An attaching ring or fixing ring is provided for attaching or fixing a dispenser member to a neck of a receptacle containing a substance to be dispensed. The ring is annular and has a bottom portion and a top portion. In a preferred embodiment, the bottom portion includes snap-fastening tabs for fixing the ring to the neck. The top portion includes an opening for the dispenser and a surrounding structure for securing the dispenser member to the neck. The top portion further includes at least one guide wall element extending parallel to the longitudinal axis of the dispenser member and around the periphery of the fixing ring substantially in line with the snap-fastening tabs. A hoop can be provided for preventing the tabs from splaying apart. The hoop can include an internal projection, such as a vertical rib or a thread.

Abstract: A reusable sealable plastic drum incorporates

Abstract: An integral cap assembly for a portable liquid container that has a reversible spout, includes a cap portion with an opening and a pair of grooves formed at opposite sides of the opening. A closure cap is coupled to a first flexible member, where the cap portion is coupled to a second flexible member. The first and second flexible members are each coupled to a remaining flexible member. The closure cap can be fitted either above the opening or below the opening of the cap portion, to thereby provide an integral cap assembly with no separate parts when the reversible spout is in either the closed, non-pour position, or the open, pour, position.

Abstract: A breech for a dual-component cartridge with a breech plug with two sealing bolts which can be inserted into the two mutually separated outlet openings at the cartridge throat and seal these openings tightly, and with a retaining nut that can be screwed onto the cartridge throat. This nut can turn relative to the breech plug and can be locked to it in an axial direction and released therefrom. In order that the breech plug will be held by the retaining nut without additional parts and so that it can again be easily separated from it, between the retaining nut and the breech plug a manual-detachable snap-in connection is formed by the relative movement of the breech plug in the axial direction.

Abstract: An attaching ring or fixing ring is provided for attaching or fixing a dispenser member to a neck of a receptacle containing a substance to be dispensed. The ring is annular and has a bottom portion and a top portion. In a preferred embodiment, the bottom portion includes snap-fastening tabs for fixing the ring to the neck. The top portion includes an opening for the dispenser and a surrounding structure for securing the dispenser member to the neck. The top portion further includes at least one guide wall element extending parallel to the longitudinal axis of the dispenser member and around the periphery of the fixing ring substantially in line with the snap-fastening tabs. A hoop can be provided for preventing the tabs from splaying apart. The hoop can include an internal projection, such as a vertical rib or a thread.

Abstract: A lidded plastic barrel (10) consisting of a barrel body (12), a barrel lid (14) and a clamping ring or ferrule (16). The U-channeled rim (20) of the barrel lid (14) includes an additional, rotationally symmetrical sealing web (36) and a gasket (22) is positioned between the outer circular side wall (26) of the lid and the said sealing web (36). Between the sealing web (36) and the inner circular side wall (28) of the lid an annular recess (38) opens up toward the bottom while the sealing web (36) and the inner circular side wall (28) are spaced apart and are mutually connected by way of an upper flange (40).

Abstract: A self-closing bottle cap having a cover plate (1) that is easily pushed aside with a light touch from a swab stick (17). The cover plate pivots aside and upward on a hinge (6) with an oblique pivot axis (10) that provides an ideal trajectory and gravity component for the cover plate motion. The cover plate is held aside with the swab stick while dipping the swab (18) into the bottle contents. When the swab is removed, the cover plate returns by gravity and closes the bottle. This allows an operator to easily open the bottle for each dipping of the swab, using only one hand with little distraction. The bottle remains closed at all times except briefly during each dip. This minimizes evaporation of chemicals into a working environment.

Abstract: A cover element and clamping ring are mountable on and sealable to close a tubular portion surrounding an access opening in a wall portion of a container of a fuel tank assembly for a motor vehicle. The tubular portion is contiguous with and projects outward from the wall portion, defines the opening in the wall portion, and has a contoured bead which projects radially outward from the projected end of the tubular portion. The cover element is demountably situated on the projected end of the tubular portion and is thereby removably situated over the opening in the container. A sealing ring is removably disposed between the cover element and the tubular portion of the container. The clamping ring is removably snapped onto the contoured bead of the tubular portion of the container.

Abstract: A fuel tank for a motor vehicle has a connecting portion which extends around an opening in the tank wall which is closed by a holding cover, with the interposition of a sealing ring. The connection between the connecting portion and the holding cover is made by a fixing means urging the holding cover towards the connecting portion. The sealing ring is disposed in a groove in the connecting portion or the holding cover and the cross-sections of the groove and the sealing ring are so selected that, in its operative position of closing the opening, the holding cover is supported directly by the end surface of the connecting portion, bearing against that end surface.

Abstract: Closure for containers, comprising a locking ring (1) which in situ surrounds the container along the whole of its outer periphery. At least one area of the container closure comprises means which allow a substantially reversible increase in the circumference of the locking ring. The container closure also comprises at least one lock-release part (2) on the radially external side of the locking ring, and which in at least one end is fastened to or constitutes an integrated part of the locking ring (1), and which under the influence of a force results in an increase in the circumference of the locking ring (1). There is hereby provided a closure system for containers whereby the container can be opened even by very weak hands, and whereby it is subsequently possible to effect a closing of the container so that this is closed tightly. The opening and the closing are effected without the use of tools.

Abstract: A garbage or trash receptacle lid securing device for securing a lid to a garbage or trash receptacle. The device includes an elongated receptacle band formed of flexible pliable material having a length sufficient for circumferential engagement around an upper open end of the receptacle. A releasable connection for connecting each end of the band together is also provided for adjustably tightening and securing the band when positioned circumferentially around the receptacle. A plurality of radially spaced lid straps are each connected one to another at a mid point thereof and, at each end thereof, at spaced apart points to and along said band. The lid straps are of sufficient length whereby, when said band is circumferentially engaged and tightened in position around the receptacle with the lid in a closed position atop the receptacle, the lid straps are automatically tightly positioned centrally across the lid in a generally radially evenly spaced apart relation one to another for lid retention.

Abstract: A closure system which provides a lubricated lock ring on a hinged door assembly rather than proximate a pressure vessel is provided. The configuration of this system removes lubricants from the region immediately adjacent a pressure vessel entrance to be sealed by the door assembly. A shorter entrance tunnel for access to the pressure vessel interior is also provided by this configuration. A clamp ring having radially extending lugs is rigidly affixed proximate to and partially defining the pressure vessel entrance. The door has a continuous thread about an outer circumferential surface thereof. A lock ring having a complementary interior continuous thread is in rotational communication with the threaded circumferential surface of the door. The lock ring also has plural, inwardly projecting lugs which are capable of passing between the clamp ring lugs when the door is swung toward the clamp ring.

Abstract: A container for gelatin includes a cone-shaped first cup having a closed end and an open end. The diameter of the open end of the first cup is greater than that of the closed end of the first cup. A flange extends radially out from the periphery of the open end of the first cup. A cone-shaped second cup abuts the first cup and has a closed end and an open end. The diameter of the open end of the second cup is greater than that of the closed end. A flange extending radially out from the periphery of the open end of the second cup. The flange on the second cup flush abuts the flange on the first cup and has a diameter to the same as the flange on the first cup. A connector clamps and holds the first cup and the second cup together. The diameter of the connector is the same the diameter of the flange of the first cup.

Abstract: One form of a cap for a container includes an internal part and an external part relatively movable with respect to one another among closed, intermediate and open cap positions. Complementary structures protrude from the internal and external parts for dictating relative positions of the internal and external parts as the parts are initially joined together. Interengaging elements on the internal and external parts secure a selected portion of one of the internal and external parts to the other after joining the parts together. A breakable seal between the selected portion of the one of the internal and external parts and the remainder of the one of the internal and external parts, when broken, allows the internal and external parts to move relative to one another. Variations are also disclosed.

Abstract: The invention relates to a pressure cooker with a container that can be airtightly closed with the aid of a cover, which can be placed upon a container edge and locked with it. A closing mechanism is provided on the cover. The closing mechanism includes a total of four arcuate closure members, acting distributively over the periphery of the cover and pivoted on the periphery of the cover. The closing mechanism can be moved by an actuating device from an open position, in which the cover can be removed from the container, into a locked position to extend underneath the container edge. In the locked position, the cover is pressed at its periphery against the container edge by interspacing an encircling ring. The total (for example four) closure members are combined into (for example two) groups of two closure members each of which are connected with hinges.

Abstract: This invention relates to a cylindrical, blow-molded lidded barrel (wide-mouthed drum) with a barrel lid and tension-ring closure. Previously known lidded barrels have comparatively little ability to withstand falls and are therefore not well-suited for handling liquids. Owing to the special configuration of the barrel lid and the barrel mouth edges as well as by a special matching of the individual components to one another, the lidded barrel according to the invention can be manipulated in the filled state with the same barrel-gripping tool (parrot's beak), ans is universally employed and in industrial use for modem plastic L-ring bung barrels or normal steel bung barrels. By improving the strength of the lidded barrel when it is dropped, the barrel is also made especially well-suited for handling liquids since it remains liquidtight even when dumped or dropped from great heights.

Abstract: The invention discloses a plurality of cylindrical slugs linked together by a cable. The slugs are separated by spacers and the cable is crimped at each end thereof to keep the slugs and spacers from coming off the cable. The cable-slugs-spacers assembly is inserted through a guide tube and into an annulus locking the cover of the pressure vessel to the housing of the vessel. A relief mechanism is provided in the cover to ensure that the cable-slugs-spacers assembly is fully inserted in the annulus thus preventing accidental extrication of the cover when the vessel is pressurized. A proximity sensor is positioned in the housing of the vessel and senses the pressure of the first slug inserted into the annulus thus insuring that the cable-slugs-spacers assembly has been fully inserted in the annulus. A coupling is provided on one end of the cable-slugs-spacers assembly to positively lock the assembly in place ensuring that the cover will not be extricated from the pressure vessel under pressure.

Abstract: A structure of squeeze lid is provided. The squeeze lid includes a cyliner container having an upper opening and a sloped flange slightly extending outward from the opening; a squeeze lid of a circular body having a first and second lower flanges concentrically formed and extending downward from the edge of the body to define an annular gap therebetween engageable with the sloped flange of the container, an upper flange extending upward from the edge of the body including a plurality of radial slits fromed spaced apart in the circulity of radial slits fromed spaced apart in the circumference and a reinforcement ring engageable into a circular space moving outward so as to effect the second lower flange to move inward in order to tightly close the upper opening of the container which may decorate with patterns to be used as a cup or vase.

Abstract: A chime assembly shaped to fit on the upper opening of a drum to receive a top and a closing ring. The chime assembly comprises a top chime having a lower band with a slot shaped to receive the upper opening of a drum. The top chime has a top flange and an upper annular portion having an annular groove shaped to receive a sealing ring. The top flange comprises a substantially axially-extending wall and a substantially radially extending flange positioned to be engaged by the cover. The chime assembly further comprises a bottom flange comprising an annular lower side wall, an annular radially-inwardly extending support surface, and a downwardly-projecting annular glide ring to contact a support surface and thereby elevate the drum from the ground surface. The chime assembly is preferably entirely plastic.

Abstract: A thin wall metal can is described having a converging neck portion and cylindrical chimney with a threaded sleeve encircling the chimney and restrained from rotation on the chimney by splines on an inner surface of the sleeve firmly engaged against an outwardly projecting shoulder on the can between the neck portion and chimney. The sleeve receives a threaded closure for closing and sealing the can.

Abstract: A safety web for retaining the lid of a waste drum during opening of the lid. Safety web 10 is adapted to form a secure containment volume 22 that prevents lid 14 from becoming an airborne safety hazard. Safety web 10 includes a belt 20 for securing the safety web to the drum. The ends of belt 20 are secured to a ratcheting turnbuckle 25 that allows adjustment of the length of belt 20. Safety web 10 further includes a plurality of radial straps 30 radially disposed about belt 20. The ends 32 of radial straps 30 are fixedly secured to belt 20. Radial straps 30 are further fixedly secured to each other at a central point 35 defined by the midpoint of each radial strap 30. An annular strap 40 is provided on safety web 10 between belt 20 and central point 35. In order to allow an operator to vent pressure off of the drum with safety web 10 in place on drum 12, a steel elongated pry bar 50 is also provided.

Abstract: Closure means for fastening a cover over the open end of a cylindrical drum, utilizing an annular split ring contoured to mate the cover to the drum. Included are a pair of depending lugs, extending from the ring on opposite sides of the split. Each of the lugs has a substantially parallel lateral face and a transverse opening therethrough. Spacer means are provided between the lugs. A tie bolt mounted through the openings of the lugs is tightened so the lugs are drawn together, contracting the ring. The spacer means between the lugs form a pivot point with the lugs, drawing the ring in a direction toward the pivot point.

Abstract: A reusable transport and containment system for a pan or dish having a peripheral flange. The system includes a manually graspable collar that acts as support around the perimeter of the pan and a lid that sealingly engages the collar. The coupled lid and collar insulate the pan's contents while shielding the food handler's hands from the pan and its contents.

Abstract: This invention relates to a cylindrical, blow-molded lidded barrel (wide-mouthed drum) with a barrel lid and tension-ring closure. Previously known lidded barrels have comparatively little ability to withstand falls and are therefore not well-suited for handling liquids. Owing to the special configuration of the barrel lid and the barrel mouth edges as well as by a special matching of the individual components to one another, the lidded barrel according to the invention can be manipulated in the filled state with the same barrel-gripping tool (parrot's beak), ans is universally employed and in industrial use for modem plastic L-ring bung barrels or normal steel bung barrels. By improving the strength of the lidded barrel when it is dropped, the barrel is also made especially well-suited for handling liquids since it remains liquidtight even when dumped or dropped from great heights.

Abstract: Essentially "U" shaped endless elastic loops, with the opening facing inwardly, removably hold first foil covers over access openings of flanged containers. The foil is placed over the container opening and flange formed around the opening. The elastic loop is stretched to encompass the foil cover and flange and then released to secure the foil cover over the access opening. Clamping strips can be provided with the elastic loops to hold second foil covers onto the elastic loops and over the container openings. The clamping strips are provided with protrusions or recesses that match recesses or protrusions on the upper surfaces of the elastic loop to clamp foils between them and over the access openings.

Abstract: A pump and filter assembly comprising a filter cover secured onto a filter body by a locking ring. A one-piece latching mechanism, integral to the locking ring and composed of flexible material, biases a latching end of the latching mechanism against the locking ring, causing the latching end of the latching mechanism to project through a slit in the locking ring into a notch on the outside of the filter body when the filter body is completely threadably engaged with the locking ring. The latching portion of the latching mechanism is easily biased away from the slit and the notch, facilitating disengagement of the locking ring from the filter body and filter cover. The entire latching mechanism is itself easily removed from the locking ring, facilitating repair or replacement of the latching mechanism.

Abstract: A transportation ring affixed to a container for the purpose of retaining the container plug on the container during transportation. The transportation ring snaps over the can seam and extends inwardly over the plug curl, but not downwardly below the plug cover portion. The ring is preferably fabricated from a rigid plastic material.

Abstract: A preform, a process for forming the preform and a container formed from the preform are disclosed. The preform comprises a tubular body portion having an open end and a closed end. At a location near the open end, a flange extends outwardly from the tubular body portion. A closure retaining element is provided for engaging a closure. The closure retaining element is formed separately from the tubular body portion and includes a manner for attachment to the tubular body portion. The closure retaining element is attached to the tubular body portion adjacent the flange via the manner for attachment.

Abstract: An open top drum having a closed bottom, a sidewall extending upwardly from said bottom, and a chime portion for receiving a removable cover. The chime portion extends from the sidewall so as to define an open top and includes a substantially radial first chime wall, a substantially cylindrical second chime wall directed upwardly from an outer portion of the first chime wall, and an exterior circumferential rib circumscribing a lower portion of the second chime wall for added rigidity. The drum assembly may also include a cover having a peripheral chime receiving member, and a retaining ring having a first leg for engaging the cover and a second leg for engaging the first chime wall. The legs are joined by an intermediate band. The cover may include a circumferential flange that extends over a portion of the second chime wall but not over the rib. The rib fills a substantial portion of an area defined by the second leg, intermediate band, second chime wall and circumferential flange.

Abstract: An adhesive injection apparatus comprising: an adhesive reservoir tube having a flange portion; a connection cap having a pressing portion, a large-diameter portion, and a plurality of axially extending protrusions formed side by side circumferentially on an inner wall of the large-diameter portion, the large-diameter portion having an inner diameter larger than an outer diameter of the flange portion of the adhesive reservoir tube; and a nozzle having a flange portion; wherein when the adhesive reservoir tube and the nozzle portion are connected to each other, the flange portion of the adhesive reservoir tube is interposed between the pressing portion of the connection cap and the flange portion of the nozzle so that the flange portion of the adhesive reservoir tube is pressed by the pressing portion of the connection cap and the flange portion of the nozzle in a condition that the plurality of axially extending protrusions of the connection cap are in contact with an outer edge of the flange portion of the

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: A package comprising a container, a closure assembly which includes a tearing portion. The container includes a sidewall, a closed end and an end with an opening. The closure assembly includes a central panel covering the container opening and a circumferential edge secured to the container. The tearing portion allows the closure to be opened for access to the contents of the package.

Abstract: A seal and extender assembly which prevents surface water and other environmental liquids from inadvertently entering a sump, such as one used in a gasoline service station. The seal assembly includes an extender and a cover. The extender defines a channel and has a first end and a second end, the first end has a larger diameter than the diameter of the second end, the first end is secured to the sump adjacent the access port. The cover has a top surface and a perimeter surface, the top surface covers the access port and the perimeter surface secures to the second end of the extender.

Abstract: The invention concerns a sterilization container which is preferably intended for hospital waste and is formed by a bin (1) having a filler opening, which is delimited by the upper edge of the side wall (5) of the bin and is opposite the base (4) thereof, and a lid (2) for covering the filler opening. The bin (1), and possibly also the lid (2), consists of a tough plastics material which is permeable to microwaves and is still resistant to elongation above the boiling point of water. A pressure-tight sealing arrangement (20), disposed between the bin (1) and the lid (2), and a closure arrangement (3, 29), for securing the lid (2) on the bin (1) against the effect of internal pressure in the bin (1), ensure that the contaminated waste collected in this waste-collection container can be sterilized when the container has been hermetically closed and the waste has been moistened by microwave radiation and then disposed of in the sterile state.

Abstract: An annular lock stopper for closing an aperture of a bottle having a neck with an inner wall, an upper edge which delimits the aperture, and an outer recess situated below the upper edge on an outer wall. The annular lock stopper includes a stopper part and a ring part. The stopper part includes a central stem for insertion into the neck of the bottle, an upper part, fixed to the central stem, and an outer part, depending from the upper part and arranged to embrace the outer surface of the neck of the bottle when the stopper part is in the inserted position, the outer part having a lower end portion comprising a widening arranged to fit into the outer recess of the neck of the bottle when the stopper part is in the inserted position.

Abstract: A lid retainer is provided for a "paint can" type container having a lid that is secured to the top wall thereof by multi-friction fit. The lid retainer is composed of a high tensile strength, impact resistant polymer material having limited flexible and defines a circular body section with a circular lid retainer flange and a circular locking flange projection downwardly from respective inner and outer radial extents of the circular body section. The locking flange has a radially inwardly extending locking projection having a downwardly and radially inwardly facing can surface disposed for camming engagement with the circular bead that interconnects the side and top walls of the container and induces yielding of the retainer flange as the locking projection passes over the circular bead.

Abstract: A twist-off can end assembly includes a cylindrical can body having an open end with a rolled flange extending around an exterior surface of the can body at the open end and a shoulder portion joining the open end with side walls of the cylindrical can. A collar surrounds the exterior surface of the can adjacent the open end, the collar including a can mating finish of an inner surface thereof and a closure engaging finish on an outer surface thereof. The collar is seated against the exterior surface of the open end between the rolled flange and the shoulder portion of the can body. A cylindrical closure is provided having a dependent peripheral skirt for operatively engaging the closure engaging finish of the collar. A lid member is secured to the open end of the cylindrical can body by a lid engaging portion of the cylindrical closure.

Abstract: A closure which comprises a body portion having an open end, a closed end, an inner wall and an outer circumferential wall and an insert. The insert is for engaging a container, wherein the insert is formed separately from the body portion and includes a manner for attachment to the body portion. The insert is attached to the body portion adjacent the inner wall via the manner for attachment.

Abstract: A closure element for a container equipped with a neck in order to confine a cosmetic product in a tamperproof manner. The closure element is produced by dual-injection molding of plastic and includes a ring non-removably fixed onto the neck, this ring being produced from a first plastic, and a disc forming a lid, produced from a second plastic, an edge of which is received in a groove formed in the ring. The two different plastic materials are incompatible so that no connection occurs between them by thermofusion. The disc is equipped with a tab to facilitate separation of the disc from the ring in order to open the container.

Abstract: Pressure vessels having end closures for sealing at least one open end are constructed so as to provide full-bore access to a generally tubular shell portion wherein one or more filter cartridges will be disposed. A sealing ring of rectangular cross section is seated in a groove provided in the tubular shell at a location axially inward of a cylindrical surface region wherein a central annular groove is provided. A closure head fits within this annular surface and includes a shoulder which prevents insertion past the sealing ring.

Abstract: There is disclosed a door for closing an access opening of a hyperbaric or other pressure chamber in which access may be had to the interior of a vessel in which a patient is received through an opening and which, when in closed position, is releasably locked to the vessel.

Abstract: A package comprising a container, a closure assembly which includes a tearing portion. The container includes a sidewall, a closed end and an end with an opening. The closure assembly includes a central panel covering the container opening and a circumferential edge secured to the container. The tearing portion allows the closure to be opened for access to the contents of the package.