Abstract: The invention relates to a bung drum of thermoplastic synthetic material, having a circumferential carrying and transport ring disposed on the drum wall in the vicinity of the upper end and having at least one bung hole located in the edge region of the upper end. The upper end of the drum has a slope surface on both sides of the bung hole. When seen in the normal position of the barrel, the slope surface slopes downwardly in the direction of the edge of the drum with its lowest point in the vicinity of the bung hole.

Abstract: A system for transporting and unloading dry chemicals in a container including a removable bulk head and a liner. The bulk head has a top and a bottom. The bulk head is tilted when installed in the container such that the top of the bulk head is at the back of the container and the bottom of the bulk head is recessed into the container. The bulk head has an opening at a bottom center portion thereof. The liner has an opening and fits within the container. The liner has a funnel extension fitting through the opening in the bulk head. The funnel extension has a diameter which decreases toward the opening in the liner, with increasing distance from the bulk head. The funnel extension extends across substantially the entire width of the container. The container has a height, and the removable bulk head has a length extending between the top and the bottom, which length is greater than the height of the container. The system also has an adapter which attaches to the liner.

Abstract: A drum with a drum closure provided in a drum wall comprises an insert and a shut-off cap which can be placed in the insert which insert is situated in a collar on the drum wall pointing towards the outside of the drum and has a first flange which rests against the inside of the drum wall and a second flange which is flanged radially outwards over the collar and also a sealing ring which is wedged between the first flange and the inside of the drum wall. An additional seal which may or may not be connected to the sealing ring, is provided between the collar and the insert lying opposite in order to improve the sealing.

Abstract: A bung comprises a deformable member with a generally cylindrical middle portion generally coinciding with the bunghole when inserted, and upper and lower frusto-conical ends which increase in diameter as each end extends from the middle portion. The middle portion is preferably of a size less than the hole to facilitate insertion of bung into and removal from the bunghole. Where the hole is tapered, the middle portion is similarly tapered. The spool-like shape of the stopper helps to prevent unintentional disengagement of the bung from the hole and to prevent overinsertion of the bung into the hole. The bung may further comprise one or more pull tabs to facilitate removal. The bung may define a bore to allow gas pressure to escape from the container, thus acting as a stopper. A rigid annular insert at the opening of the throughbore prevents deformation of the circular shape of the opening.

Abstract: The object of this invention is a lidded barrel with a barrel lid and a clamping-ring closure. Between its flat lid plate and its outer rim, the barrel lid is provided with a circular, perimetric groove while also featuring in its periphery at least one bung well with or without a bunghole. When a barrel is dropped, the areas around the bung well are most vulnerable to breakage, i.e. it is in these areas that the barrel lid is most likely to slip out of the clamping ring with leaks resulting. In order to improve leak resistance of a lidded barrel, especially one suitable and approved for hazardous liquids, under extreme stress-load conditions, the area around the bung wells of the barrel lid is to be stress-relieved in the event of overstress (dropped barrel).

Abstract: A plastics barrel (10) with a substantially cylindrical barrel wall (12), a disk-shaped barrel floor (14) and a corresponding barrel top (16), in which a closable closure aperture is optionally arranged, and with a circumferential carrying and transporting ring (22), which is arranged on the outer barrel wall (12) in the vicinity of the barrel top (16) and comprises a downward facing horizontal and an inward facing vertical bearing surface (24, 26) for the grab claws of a barrel grab, characterised in that a recessed closure housing (28) with a projecting closure socket (30) is arranged in the centre of the barrel top (16), the internal diameter of the closure socket (30) measuring at least 100 mm or more and this closure socket (30) being closable in a gas-tight and liquid-tight manner by means of a screw lid (32, 34) which can be screwed thereon.

Abstract: The present invention provides an apparatus and method for modifying existing water tanks on recreational vehicles so they may be cleaned. The apparatus and method may also be applied during the production of new water tanks for recreational vehicles. The apparatus includes an inlet plate, side wall with threads, gaskets, seal plate and a threaded plug. The method is the installation of the apparatus.

Abstract: An improved tank configuration includes a die employed to stamp a formed member. The formed member may be used as the bottom head for a portable liquid container, and is constructed so that all welding is eliminated in the corner portions of the container. A trim machine is employed to remove uneven edges from the formed part. The invention is particularly useful in constructing sloped bottom tanks of increased depth. By the present invention, a stamped configuration is provided in which a draw formed tank bottom is formed so as to allow complete and full drainage of the tank bottom. The bottom head is finish trimmed to exact dimensions so as to facilitate assembly to the shell of the tank.

Abstract: A drum with a drum closure provided in a drum wall comprises an insert and a shut-off cap which can be placed in the insert which insert is situated in a collar on the drum wall pointing towards the outside of the drum and has a first flange which rests against the inside of the drum wall and a second flange which is flanged radially outwards over the collar and also a sealing ring which is wedged between the first flange and the inside of the drum wall. An additional seal which may or may not be connected to the sealing ring, is provided between the collar and the insert lying opposite in order to improve the sealing.

Abstract: A suction accumulator for a refrigerant compressor which is mounted to the compressor in such a way as to reduce the metal fatigue at the joint between the inlet tube and the suction accumulator, and reduce the potential for rust or oxidation of the metal of the suction accumulator. The suction accumulator includes a cylindrical housing with two domed ends, wherein an inlet tube extends into the inlet of the suction accumulator and is provided with a flared end. The flared end is attached to the inlet of the suction accumulator and the flared end matches the contour of the inlet such that when the two parts are joined they are congruent with each other to thereby reduce the vibration therebetween. The suction accumulator is also provided with an outlet which communicates refrigerant from the suction accumulator back to the compressor. The suction accumulator is secured to the outside wall of the compressor using a mounting bracket.

Abstract: A bulk box has a base with side and end wall panels pivotally attached to the base for moving between a collapsed position and an upright position. The bulk box has an insert positioned in the interior of the base for receiving a flowable material. In a foot portion of the base, two outlets for the flowable material are provided. A first outlet permits flow of the material to a side of the base and a second outlet permits flow of the material through a bottom wall of the base. A cutoff device is movable between a first position blocking the flow of the material through the outlets. A diverter is movable between a first position permitting flow of the material through the side outlet and a second position permitting flow of the material through the bottom wall of the base.

Abstract: A plastic weld pourer component for connecting to a plastics container part, more particularly a container part of film-like plastics material, comprises at least one welding rib extending circumferentially about a neck portion defining a discharge passage, and having a welding edge or face. The welding edge is provided at a welding flash formed on a rib base portion of the welding rib having a smaller dimension in directions perpendicular to the circumferential direction than that of the rib base portion.

Abstract: A plastic pressure vessel having an access fitting is disclosed. The pressure vessel has a liner defining a container with an access opening. The fitting comprises a body portion defined by a hollow cylindrical neck portion having an upper annular rim and a radially flaring flanged portion. The fitting further comprises a plastic covering portion surrounding the neck portion and covering and conforming to an upper surface of the flanged portion and conforming to the upper annular rim. The body portion is formed from a plastic material having a higher tensile modulous and higher deflection temperature than the plastic covering portion which forms a fusion bond with the liner.

Abstract: A hand blender powered by an electric motor, for mixing or comminuting foodstuffs in a container, includes a working shaft having an output end, a processing tool attached to the output end of the working shaft, a shaft housing which carries the working shaft, and a bell-shaped casing enclosing the processing tool. The bell-shaped casing has a lower chamber, a lower end bounded by an aperture, and a plurality of lateral openings for the discharge of foodstuffs. A cover plate within the bell-shaped casing forms a fluid-tight seal between the lower chamber and an inner chamber of the shaft housing. The hand blender also includes an air supply structure through which outside air is supplied to the lower chamber of the bell-shaped casing when the bell-shaped casing is immersed in the foodstuffs. The air supply structure includes a flow channel with an inlet side which communicates with the outside air and an outlet side which communicates with the lower chamber of the bell-shaped casing.

Abstract: A removable plug for use in combination with a planar closure having an aperture formed therein. The plug body is of shallow cylindrical configuration and has a top flange which is partially subdivided into inner and outer ring portions by a combination of weak frangible links and strong non-frangible links. A tab integral with the outer ring portion overlies a ledge ring on the closure body to facilitate initialization of the removal process. Location of the pull ring around the maximum diameter of the top flange maximizes leverage and provides a large ring capable of accommodating several fingers of one's hand.

Abstract: A molded lid having an intermediate region configured as a sequence of waves, each of curved cross-section forming successively occurring crests and troughs, and exhibiting amplitudes increasing in value from the lid center toward the rim. The waves terminate at a ring band which is located to slide in adjacency with the inwardly disposed side of a plastic drum. The lid is provided with a polymeric gasket which is retained in position by a retainer band which is insertable in sliding compressive engagement within a retainer cavity.

Abstract: A tank connector assembly including a metal spud member having an internally threaded portion and a cylindrical wall portion. An insert member of polymer material having a cylindrical wall portion. The insert member is mounted inside the cylindrical wall portion of the spud member. A bonding member of polymer material fits the cylindrical wall portion of said bonding member positioned between the external surface of the cylindrical wall portion of the insert member and the internal surface of the cylindrical wall portion of the spud member. The cylindrical wall portion of said bonding member being securely bonded to both the insert member and the spud member. In a preferred embodiment, the polymer material of the bonding member is malcated olefin.

Abstract: A child resistant lid is disclosed for use in conjunction with the standard build bucket for containment of materials. There is provided a threaded capped access opening of sufficiently small dimension to prevent the passage of a child's head, yet of sufficiently great dimension to allow for access to the material contained within the bucket. In addition, there is provided a handle grasp member and tool grip to aid the user in opening the threaded capped access opening. When it is desired by the user to pour the material directly from the bucket, there is provided a pour spout formed on an outermost peripheral edge of the lid and an air inlet opening formed on the cap member. The lid member of the present invention has provided a permanent locking mechanism to aid the user in permanently attaching the lid member to the lipped edge found on buckets of the type to be used in conjunction with the lid and to further serve as a safety feature.

Abstract: A motor-vehicle seat comprising a vertically elongated and upwardly open lateral hollow body, arranged substantially at one side of the backrest rearwardly of the seat cushion and providing a stand receptacle for umbrellas or similar articles.

Abstract: A drum outlet and closure apparatus for use with cylindrical steel drums provides an outlet fitting with a peripheral shoulder that is generally S-shaped to accept a cap seal (such as a commercially available metallic cap seal). The shoulder thus protects an inwardly spaced threaded section. In another embodiment, the drum outlet is formed of parent metal of the drum end, formed into an annular shoulder and then partially threaded. An upper unthreaded section is folded to define a closure sealing surface. The threaded section accepts a threaded closure fitting. An unthreaded lower interior section provides enhanced strength and protects the threading.

Abstract: In an apparatus for making compost, which apparatus comprises a preferably upwardly tapering container (1), which is adapted to be vented at its top and has an upper charging opening (4), which can preferably be closed by a cover (3) and which serves to receive the material to be composted, also a lower discharge opening (7), which can preferably be closed by a flap (6) and which permits the compost to be taken out, a plurality of lower ventilating openings (9), which extend through the container wall (5), and a plurality of air-guiding elements (10), which are provided on the inside surface of the container wall (5) and serve to guide the supply air, which enters through the ventilating openings (9) and flows along the inside surface of the container wall (5). The air guiding elements (10, 12, 13, 15) on the inside surface of the container wall (5) define a flow passage labyrinth, which the air flow along the container wall (5).

Abstract: A tank connector construction comprised of an outer shell of metal material and an inner shell of polymer material mounted inside the outer shell. A metal connector member having a tubular wall and a welding projection at one end thereof is provided with the welding projection of said metal connector member welded to the outer shell of metal material. An insert member of polymer material is mounted in one end of the metal connector member with the insert member fused to the inner shell of the tank. A connector sleeve member is mounted inside the tubular wall of the metal connector member. A connector sleeve member has an internally threaded tubular wall portion and is made of a polymer material having "low creep" characteristics. In the preferred embodiment, the polymer material of the connector sleeve member is a polyamide material.

Abstract: A method of removing body fluids from a patient and disposing of the body fluids, the method comprising the steps of (a) providing a container including a bottom wall having therein a drain, (b) providing a drainage device for automatically opening the drain and draining the contents of the container, (c) collecting body fluids in the container, (d) placing the container on the drainage device, and (e) operating the drainage device so that the drainage device opens the drain and drains the contents of the container.

Abstract: A suction canister including a patient port, a vacuum port, a chamber, and a protrusion including a thin portion which defines a passageway, the passageway extending into the chamber such that the protrusion can be broken to provide communication between the passageway and the chamber to enable draining of fluid from the suction canister.

Abstract: A reagent bottle suitable for insertion into a sample analyzer features a sample discharge opening plugged by an elastic, pierceable stopper, and an air inlet. Both the sample discharge opening and the air inlet are located on the same side of the reagent bottle, the axes of the two openings running parallel to each other, such that both openings can be docked onto corresponding sampling and air inlet elements of the analyzer in one and the same working process when the reagent bottle is inserted into the analyzer. The elastic stopper is covered on its outside by a protective foil and has a recess at a puncturing site enabling the sampling element to puncture the foil more easily. Bordering on the recess of the stopper is an area which is prepunctured but offers a tight elastic seal.

Abstract: Pallet container (1) which can be used as a disposable or reusable container for the transport and storage of liquids has as main components interchangeable plastic container (2), which is equipped with filler neck (3) which can be closed with screw top (4) and discharge connecting piece (5) with drain fitting (6) and drain bottom (7), outer jacket (8) which is made as a lattice jacket, pallet (11) designed as flat bottom tray (12) made of sheet-metal for holding inner container (2) by form-fit, as well as upper frame (13) for stiffening of outer jacket (8) and for the protection of inner container (2).

Abstract: A suction canister including a patient port, a vacuum port, a chamber, and a protrusion including a thin portion which defines a passageway, the passageway extending into the chamber such that the protrusion can be broken to provide communication between the passageway and the chamber to enable draining of fluid from the suction canister.

Abstract: A container for transporting particulate matter which is initially in slurry form has a base and a sidewall portion extending upwardly therefrom and is characterized by a downwardly extending, integrally-formed peripheral drainage channel having a drainage opening at a normally lowest point therein. The container bottom is configured to urge liquid from the slurry toward the channel, and the channel is configured to urge the liquid toward the drainage opening. The sidewall portion defines an opening coverable by a lid. A liner may be used to improve the drainage of the liquid from the slurry and from the container, and a plug can be placed in the drainage opening after liquid has drained from the slurry and the container. A supplemental elevating member can be utilized to elevate the slurry with respect to the channel. A method of use of the container is disclosed.

Abstract: A composite, drum type container for storing and dispensing corrosive fluids comprises an inner plastic liner of polyethylene and an outer plastic shell. The end walls of the outer shell are substantially dome-shaped to add strength to the container, and the top end wall is further reinforced by an inclined offset wall, ribs, and inwardly protruding portions of the sidewall, to prevent deformation. A separate pressure plate adds to the strength of the dome-shaped bottom end wall. A recess or well in the bottom end wall and pressure plate allows complete removal of the contents of the container.

Abstract: A reusable container unit for flowable materials, having enhanced puncture resistance and leak containment characteristics, and being readily handleable by conventional fork lift or the like equipment, comprising a substantially closed and continuous first wall providing a containment vessel for flowable material, a substantially closed and continuous second wall providing a protective shell surrounding the vessel and spaced therefrom over at least a major portion of the outer surface thereof to provide protective spacing therebetween, spacer elements positioned between the vessel and shell for substantially maintaining the spacing therebetween, at least one aperture in adjacent portions of each of the vessel and shell and adapted to provide one or more access ports for of the vessel, individual closure devices for each of the apertures, a tubular wall extending between and connecting the apertures forming each access port to provide a conduit for the flow of materials into and out of the vessel.

Abstract: A plastic drum lid for a standard lidded drum using a clamping member to seal the lid to the drum. The lid includes a central top section of a smaller diameter then the diameter of the lid, with the central section spaced from the rim of the lid by a circumferential groove.

Abstract: A receptacle is disclosed which has a bunghole surrounded by a collar mol out of material of the receptacle to form a collar ceiling area. A closure arrangement for closing the bunghole is provided which includes a bung stop forming a bung stopper ceiling area, the bung stopper being disk-shaped and without any pretightening elements. A ceiling element is disposed in use between the collar ceiling area and the bung stopper ceiling area. A tightening element separate from the bung stopper engages with a counter element at the collar and is engageable with the bung stopper to compress the ceiling element in a direction of the collar area to sealingly close the bunghole.

Abstract: A large portable liquid mixing tank has a top wall with a large access opening that is sealingly closed with a manhole cover and also when the manhole cover is removed and a liquid mixer is installed. In either case, the pressure of any air trapped in the tank increases with rising ambient temperature and can be of a magnitude that blows off the manhole cover or mixer when released from the tank. A universal pressure relief bung is adapted to be threaded in a bung flange in the manhole cover, mixer and the tank top wall and is operable with a strategic vent hole arrangement to completely relieve any air pressure in the tank on only one turn of the bung within the shortest of the minimum times required to remove the liquid mixer, the manhole cover and the bung itself.

Abstract: A barrel for initial use as a bunghole barrel having a bunghole lid with a filling and emptying bunghole, as well as an aerating and venting bunghole, a lid flange and barrel border. The lid flange and the barrel border have a spacing when the lid is closed, and are welded together by a continuous sealing web 20 coaxial to the barrel axis. The bunghole barrel may be reconditioned for further use by removing the sealing web and retrofitted as a wide mouth barrel having a lid with clamping-ring closure, or a removable bunghole lid, or as a bunghole barrel having a bunghole lid welded onto the barrel body by a sealing web.

Abstract: An improved tank bottom configuration formed from a flat metal plate of square or rectangular shape is disclosed. The plate is sheared to provide two adjacent sides which are tapered along their lengths and a notch is cut in each corner portion. By the use of stop and die members, the plate member is deformed to provide a bottom wall portion which slopes downwardly toward one corner and upwardly extending side wall portions which extend around the periphery of the bottom wall portion. A drain opening and a crease are formed in the bottom wall portion, with the crease being aligned with and spaced from the drain opening.

Abstract: A safety device for a pressure vessel comprises an easily-breakable member-having a small thickness and a fixing portion formed in the pressure vessel for fixing the easily-breakable member therein. The easily-breakable member has a top wall portion formed with a breakable portion, and a peripheral wall portion having an end. The fixing portion has a wall portion which extends toward the inside of the pressure vessel such that it defines an opening having a shape complementary to a periphery of the easily-breakable member to permit communication between the inside of the pressure vessel and the outside of the pressure vessel. The wall portion has an inner end. The easily-breakable member is fit into the opening of the fixing portion such that the end of the peripheral wall portion is directed toward the inside of the vessel, and the end of the peripheral wall portion of the easily-breakable member and the inner end of the wall portion of the fixing portion are welded to each other for sealing the opening.

Abstract: An improved tank bottom configuration formed from a flat metal plate of square or rectangular shape is disclosed. The plate is sheared to provide two adjacent sides which are tapered along their lengths and a notch is cut in each corner portion. By the use of stop and die members, the plate member is deformed to provide a bottom wall portion which slopes downwardly toward one corner and upwardly extending side wall portions which extend around the periphery of the bottom wall portion. A drain opening and a crease are formed in the bottom wall portion, with the crease being aligned with and spaced from the drain opening.

Abstract: In a portable container having a receptacle adapted to receive liquid, the receptacle having an opening on the upper surface of the container for both receiving and discharging liquid. In the preferred embodiment, the portable container also has a second set of receptacles adapted to receive powders, each receptacle extending between the upper and lower surfaces of the container, having an opening on the lower surface for receiving the powders and an opening on the upper surface for discharging the powders.

Abstract: A system for mounting access plates for covering an access opening onto storage tanks and the like. A backing plate assembly comprising two semi-circular, rigid backing plates is provided. The backing plates are passed individually into the interior of the tank where the backing plate assembly is reconfigured. The backing plate assembly located within the interior of the tank provides a solid structure that can be used to anchor the access plate onto the tank wall over the opening. Interior and exterior gaskets are used to create a fluidtight seal around the opening and to facilitate assembly of the mounting assembly.

Abstract: A collapsible container is provided in which there is a flange extension (8) from the outlet spout (5) to the lower corner of the container beneath the spout to hold the collapsible container in the corner of the rigid outer container (11) while the container is being filled.

Abstract: A stackable composite container consists of a cylindrical inner container having walls of a thickness capable of fully supporting the pressures of any contained liquid and an outer container enclosing the inner container and being of rectangular cross-section and of a strength adequate for withstanding stacking pressures but inadequate for withstanding the pressures of the contained liquid in the absence of the inner container. The outer container is provided with a plurality of spaced inwardly projecting ribs in supportive contact with the outer wall of the inner container. The base of the outer container has fork-lift tine pockets. There is a means for filling the inner container, and a means for emptying the inner container, both means being accessible from the outer container exterior.

Abstract: A drum closure system is provided for protecting the integrity of the threads of a drum neck and for providing the safe and easy installation of a replaceable closure neck. The drum closure system primarily comprises a drum with a drum neck integrally formed in the drum top, a closure plug, a replaceable closure neck which is interposed threadably between the drum neck and the closure plug, and a specialized tool for installing and removing the replaceable closure neck. The use of the tool, which is designed to enable exertion of very high levels of torque on the replaceable neck, eliminates the need for a locking mechanism between the replaceable neck and drum neck because insertion of the replaceable neck at a high torque measurement virtually eliminates the possibility of relative rotation of the replaceable neck without the specialized tool. Installation of the closure plug makes the removal of the replaceable neck virtually impossible.

Abstract: A drum for liquids with a generally cylindrical sidewall and a drainage system in each end wall. One end wall has a peripheral channel opening into a sump from which substantially all the of liquid in the drum can be removed through a dip tube received in the sump and connected to a siphon or a pump. The other end wall has another sump located adjacent the sidewall with a tapered portion extending between them so that when the barrel is turned upside down substantially all of its contents can be drained by gravity through a bunghole in the sump. A plug is removably threaded in the bunghole which preferably overlaps and is generally axially aligned with the sump in the other end wall to facilitate inserting the dip tube.

Abstract: A reusable container unit for flowable materials, having enhanced puncture resistance and leak containment characteristics, and being readily handleable by conventional fork lift or the like equipment, comprising a metallic, substantially closed and continuous first wall providing a containment vessel for flowable material, a metallic, substantially closed and continuous second wall providing a protective shell surrounding the vessel and spaced therefrom over at least a major portion of the outer surface thereof to provide protective spacing therebetween, spacer elements positioned between the vessel and shell for substantially maintaining the spacing therebetween, at least one aperture in adjacent portions of each of the vessel and shell and adapted to provide one or more access ports for of the vessel, individual closurer devices for each of the apertures, a tubular wall extending between and connecting the apertures forming each access port to provide a conduit for the flow of materials into and out of the

Abstract: A flange fitting for attaching to the lid of a drum includes a seal tube having a generally cylindrical main body with a relatively thin wall arid an outwardly radiating frustoconical lip extension. Also included as part of the flange fitting is a standard drum plug flange having a generally cylindrical main body and an outwardly radiating, frustoconical lip. The drum plug flange is sized and shaped so as to fit within the seal tube such that the lip extension and the lip are generally coextensive with each other. These two components are then able to be anchored into the lid of the drum through a punch press operation which simultaneously clamps and crimps both the lip and lip extension into a raised boss recess thereby precluding any preassembly, such as by welding, of the seal tube and drum flange prior to assembly to the drum lid.

Abstract: A space saving rectangular container having a child resistant lid assembly wherein the rectangular container has a rectangular closure provided with a central opening. The child resistant lid assembly is removably mounted on the closure to close the opening and is positioned inwardly of the container side walls so that when placing a plurality of the containers having child resistant lid assemblies thereon in a stacked or side-by-side relationship, the child resistant lid assembly is positioned inwardly from the side wall of an adjacent container to thereby prevent damage to the lid assembly by the adjacent container during shipment and storage.

Abstract: A tubular fitting of sheet metal is formed in one piece of a container, for example, a bung container and an internally threaded bushing is press fitted into tubular fitting or is held therein by formations, texturing and/or adhesive and is braced axially against a bead formed on the free end of the tubular fitting.

Abstract: The present invention provides a hatch apparatus comprising: (a) a non-metallic base having a base flange which is connectable to a container flange by bolting and (b) a non-metallic lid which is threadedly connectable to the non-metallic base. The inventive hatch apparatus can also include a pressure relief device associatable with the non-metallic lid. In one embodiment, the non-metallic lid comprises a single lid member. In a second embodiment, the non-metallic lid comprises two lid members. The inventive hatch apparatus is highly corrosion resistant and convenient to use.

Abstract: A container (10) of the type having side walls and top and bottom ends, the top end (2) including an access hole 4 surrounded by an upstanding neck (5) adapted to receive a suitable closure, wherein the neck is integrally formed from the material of the top end. There is also provided a closure (12) comprising a cap having a top (13) and a skirt (15) extending downwardly therefrom, the skirt having an internal thread (12a) to engage the external thread of the neck, wherein the top (13a) of the cap is formed in a concave shape, the opposite surface (13b) being convex and extending downwardly towards the interior of the cap.

Abstract: A closure is used for selectively closing an opening of a container, the container including a tubular collar defining an opening and surrounded at the opening by an annular collar flange. An embossment includes a tubular collar retainer having an outer diameter slightly less than an inner diameter of the container collar and defining a through passage. A cap is threaded into the through passage to close the same. An annular retainer flange extends outwardly from an outer wall of the collar retainer and is seated on the collar flange incident to the retainer being inserted in the container collar. The retainer flange is secured to the collar flange by vibration welding so that the cap closes the container opening.