Abstract: A method for converting a thin-walled container to a jar with a rigid threaded neck which will accept a conventional threaded screw cap which comprises separately forming a thin-walled container and a rigid threaded neck ring and then attaching the ring to the outside of the container and the jar so made.

Abstract: A cap includes a closure portion rotatably engaging the filler neck for closing the filler neck and an outer shell for providing a hand grip to permit rotation of the cap about an axis. A clutch is included in the cap for selectively providing an operative connection between the outer shell and the closure portion so that rotation of the outer shell relative to the filler neck in a cap-removal direction will rotate the closure portion in the cap-removal direction. An actuator is provided for activating the clutch means. The actuator is reciprocable relative to the outer shell in operative directions substantially parallel to the axis of rotation of the outer shell to control activation of the clutch.

Abstract: A paperboard carton for containing and pouring liquid has a pour spout fitment adhesively secured to its upper surface and at least partially over a reinforcing patch on said upper surface to spread the upward force exerted by opening the fitment over an area of the carton surface larger than the bottom surface of the fitment so as to prevent the fitment from being torn away from the carton surface. In addition to the force distribution, the tensile strength of the added patch material is much greater than the strength of the carton coating, thus this new patch material becomes the primary seal.

Abstract: Insert (1) for fixing into openings, the insert being manufactured in at least two parts having openings therethrough, the parts being joined together so as the openings are in communication. One cap member (2) and at least one locking member (3) are required to form an insert, whereby the cap member interfaces with the external surrounding suface of an opening and the locking member interfaces with the internal surrounding surface of an opening so as to fixedly locate the assembled insert within the opening and cause both the insert and the opening to flex to a certain extent, whereby the insert is snugly fitted in the opening and any movement between the insert and the opening is accommodated by flexural movement of either or both the insert and/or the opening without affecting the seal between them.

Abstract: A closure assembly, such as a filter cap for a vehicle's fuel tank, comprises a first member formed with a circumferentially arranged series of ratchet teeth, and a second member associated with a pair of pawls, the pawls being continuously urged linearly apart from one another by spring means located between their adjacent ends so that their ends remote from the spring means, which remote ends may each be formed with a plurality of ratchet teeth, are continuously urged into gaps defined between the ratchet teeth formed upon the first member, whereby application of torque to the second member in one rotary sense is initially transmitted by means of the pawls so as to rotate the first member in conjunction therewith until the torque exceeds a predetermined level, whereupon the pawls ride over the ratchet teeth formed upon the first member and the second member is rotated relative to the first member, whereas application of torque to the second member in the opposite rotary sense is always transmitted by means

Abstract: An access port structure for a shipping container is described comprising a cylindrical body member for welding to the shipping container, a port cover for threaded engagement by hand with the body member, a gasket for sealing the cover to the body member, and a retaining cable connecting the cover and gasket to the body member.

Abstract: In a filler neck cap including a screw body and a cap, the cap comprises two members of a cover portion and an annular thin latching member so as to enable different materials, each of which exercise optimumly functions necessary to the respective members. In one example with respect to a combination of preferred materials, the cover portion of the cap and the screw body may be formed from polyacetal resin, but the annular thin latching member interposed therebetween may be formed from polyamide resin; the safety plastic filler neck cap may be manufactured from the combination of these synthetic resins, which is designed to be capable of controlling the screwing torque and of stabilizing the cap dislodgement. According to the present invention, there can be provided the comfortably operable filler neck cap increasing the dimensional stability of the cap and eliminating the grating noise during the cap opening-closing operations.

Abstract: A filler neck is provided for receiving a filler cap including a closure member having an axially outer portion, a threaded axially middle portion, and an axially inner portion. The filler neck includes a generally cylindrical tube having an axially outer portion, a threaded axially middle portion for receiving the threaded axially middle portion of the closure member, and a reduced-diameter axially inner portion. The reduced-diameter axially inner portion is positioned for receiving the axially inner portion of the closure member in a closely spaced relation to prevent radial movement of the axially inner portion of the closure member.

Abstract: An integrated circuit (IC) wafer container for holding IC wafers is disclosed. The IC wafer container comprises an enclosure member and a body member. The body member has one or more longitudinal openings through which the IC wafers contained therein can be pinched out or sucked out safely by using a pincer or a vacuum sucker without damaging the IC wafers.

Abstract: A carrier for circular saw blades is provided having a spindle mounted on a base member. A cylindrical cover has a threaded insert which spins onto the top of the spindle and seats on the rim of the base to form a water-proof compartment. A stand can be provided to lift the lowest blade off the surface and a cavity in the bottom of the base can be used to store a blade tool.

Abstract: A multi-purpose fitting system includes a container having an inner tank and an outer tank made of a plastic material. An aperture is provided at the top of the container in which a multi-purpose fitting is provided. The fitting includes a close-off fitting base having a flange which is permanently attached to an outer surface of the inner tank. A close-off skirt made of a plastics material rest on the flange and extends beyond the flange to additionally rest on the outer tank. This skirt is securely attached to an outer surface of the outer tank such as by a continuous weld which provides a seal between the skirt and outer tank. A close-off ring is threadably received on a threaded upper portion of the close-off fitting base to press the skirt against the flange. A fitting member is threadably received in an interior threaded aperture of the close-off fitting base as appropriate.

Abstract: The invention relates to a fuel tank cap comprising a body, the upper portion of which is provided with a hole. Said hole exhibits a plurality of concave or convex sections which are formed along the inner periphery of the hole. A cover comprises a sleeve, which is formed on the inner periphery of the cover for insertion into the hole of the body, and has a plurality of axial slits. The sleeve is provided with a plurality of convex or concave sections formed along its outer periphery so as to mate with the concave or convex sections of the hole, respectively. When a clamping torque applied on the cap exceeds a predetermined value, an idle-rotation mechanism is established between the sleeve and the hole. The fuel tank cap and, more particularly, such a type of cap can effectively prevent the leakage of fuel in a vehicle fuel tank when the vehicle collides with another vehicle or object.

Abstract: A fuel cap is provided for closing the threaded filler neck of a fuel tank. The cap includes a housing having threads for engaging the filler neck, a seal for sealingly engaging said filler neck upon rotation of the housing in a first direction, and a handle for rotating the housing relative to the filler neck. The cap further includes a hub for providing a lost-motion driving connection between the handle and the housing. The lost motion of the hub acts to permit a predetermined amount of relative movement of the handle and the filler neck before the housing can be rotated relative to the filler neck sufficiently to break the seal.

Abstract: A drain closure valve is disclosed having a wide mouth body member including a substantially cylindrical body annular wall portion with a fluid passageway therethrough and having a cap for sealing engagement therewith. The cap includes a substantially cylindrical cap annular wall portion and a bottom wall portion, a stepped annular ridge which defines a ridge upper annular wall portion and a ridge lower annular wall portion joined by a ridged upper horizontal wall portion, and threads affixed to the annular wall portions of the cap and the body member allowing the cap to threadably engage the body member. The seal comprises a protrusion extending outwardly from the cap annular wall portion which sealingly engages against the lumen of the body annular wall portion.

Abstract: A stuck fuel rod capping sleeve to be used during derodding of spent fuel assemblies if a fuel rod becomes stuck in a partially withdrawn position and, thus, has to be severed. The capping sleeve has an inner sleeve made of a lower work hardening highly ductile material (e.g., Inconel 600) and an outer sleeve made of a moderately ductile material (e.g., 304 stainless steel). The inner sleeve may be made of an epoxy filler. The capping sleeve is placed on a fuel rod which is then severed by using a bolt cutter device.

Abstract: A screw stopper for synthetic plastic cans in the range of 10 litres and above has a pouring spout with an external threading, a cap with an internal threading fitting the external threading on the pouring spout, and a connection device between the pouring spout and the cap. The external and internal threadings have an equal pitch, that is high enough that rotation of the cap through 180 degrees plus/minus 30 degrees rotates the cap from a closed to an open position. An articulated handle on the upper side of the cap protrudes far beyond the cap. The connection device includes a retaining ring that guides the cap in a shape-engaging manner and a guide device that is rigidly connected with the pouring spout and guides the retaining ring and has a partial region arranged as an arrestor for the handle grip in the closed position of the cap.

Abstract: A plug, such as a vent plug for mounting in a hole in the wall of a machine element, e.g. the end wall of the rotor casing of a pump comprising a canned motor, comprising an outer cup provided with a support flange and an inner cup pressed into the outer cup and comprising a locking device. The locking device is preferably formed as a locking flange, e.g. in the form of part of a thread serving to interlock the plug and the wall. The distance between the locking device and a sealing face of the support flange or of a sealing element connected to the support flange is smaller than the axial displacement of the plug in connection with the engagement of the locking device with the wall.

Abstract: A two-piece child-resistant closure having a molded plastic inner component and a molded plastic outer component, the inner component having a double ended liner retention bead that projects radially inwardly from the inside of an annular skirt portion to retain a sealing liner in a position that is adjacent to the underside of a top panel portion thereof without the need for an adhesive, the inner portion further having a helically extending thread that projects radially inwardly from the annular skirt portion, the thread having an uppermost portion with a 0.degree. helical angle that is positioned between the spaced apart ends of the double ended liner retention bead to reduce the required vertical spacing between the liner retention bead and the start of the helical thread to permit the closure to be applied to a container with a standard finish portion.

Abstract: An improved container is provided for transporting hazardous chemicals, and particularly chlorinated organic chemicals, such as benzoyl chloride. The improved container comprises a standard drum generally having a lining of a protective material, a removable cover, a rigid high density polyethylene bottle fitted inside the drum, and an inner lid fitted inside the drum and placed on top of the polyethylene bottle. The polyethylene bottle is provided with at least one (1) outlet projecting upwardly through a corresponding opening in the inner lid. At least one cap is provided for sealing the bottle against leakage of fluid, and the inner lid is securely fastened to the inside of the drum and to the polyethylene bottle.

Abstract: A container and closure assembly having a unique sealing surface to provide a reliable airtight seal. A generally cylindrical container having sidewalls and a base cooperably engages with a closure member by threading means. As the closure member is twisted to engage the threads of the container, an annular face of the container rim engages a complementarily configured annular recess in the closure member. Situated within the annular recess are disposed an array of interspaced, projecting rib members. As the flexible rib members are depressed against the annular face of the container rim, the ribs compress and fold over to create an effective airtight seal. A secondary seal is provided by an inner bevel forming part of the interior surface of the annular recess and a beveled surface of the annular rim of the container. The inner bevel facing and beveled surface of the container cooperably meet to form the additional airtight seal.

Abstract: A separatory module for use in separation of fluids by various methods i.e. ultra filtration, hyper filtration, reverse osmosis, or dialysis, includes a pressure shell encasing the hollow separatory fibers. The pressure shell contains threaded connections to end plugs at either end. The threaded connections provide sufficient pressure resistance to serve as a pressure container for high pressure separatory techniques. In addition, a seal is provided on the threaded end plugs so that when the end plug is threaded into the cylinder the end plugs act as a pressure stop and a fluid tight seal.

Abstract: A molded polyethylene salvage drum for containing hazardous wastes has a container having a solid side wall and a lid having a circular double-walled body. The container has a top portion provided on its exterior surface with male threads, an enlarged portion adjacent the threads, and a lower side wall portion adjacent the enlarged portion. An annular shoulder is formed on the container between the portion of enlarged diameter and the lower side wall. The lid has a skirt depending from the body of the lid. The interior surface of the skirt is provided with female threads mating with the male threads of the container. Castellations project upwardly from the lid body around the periphery thereof. The lid is molded so as to provide a plurality of kiss-off sections, in which the two walls of the body are molded together during rotational molding of the lid.

Abstract: Leaks of hazardous materials that are toxic by inhalation are resisted from shipping drums of substantial capacity by an improved drum seal which resists rotation of a plug relative to an overcap which is locked onto the plug.

Abstract: A liquid containing and dispensing package comprising a hollow plastic container having a neck, a fitment interengaging the neck and closure. The fitment interengages the neck and has a first peripheral portion extending axially and having a portion defining a spout having a pouring lip extending axially inwardly of the end of the neck, and a closure comprising a top wall and a first peripheral wall extending from the top wall axially inwardly. The closure includes a radial portion extending from the peripheral wall and sealingly engaging an annular area of the fitment. The closure defines a dispensing cup and includes a second outer peripheral wall spaced from the first peripheral wall which has internal threads engaging external threads on the neck of the container.

Abstract: A filler cap structure for a vehicular fuel tank particularly designed to prevent the discharge of fuel vapor to the ambient atmosphere and hence possible air pollution resulting therefrom upon filling of the fuel tank. The fuel tank has a filler tube closed by a filler cap. The filler tube is provided on its inner peripheral surface at a location inward of the bottom end of the filler cap with an annular seal seat. Defined by the annular seal seat, the inner peripheral surface of the fillter tube, and the bottom portion of the filler cap is an annular space which is connected through a communication tube with a canister. The annular space is sealed from the atmosphere by a first seal member disposed between the inner peripheral surface of the filler tube and the filler cap at a location outward of the annular space.

Abstract: A cap for closing a fuel fill neck of a vehicle is provided. The cap includes an axially extending housing that is adapted to engage and seal the neck. The cap further includes a first flange that extends radially outwardly from the axially upper portion of the housing and includes a groove formed therein to form a frangible portion. An outer cover is attached to the first flange that is adapted to be broken away upon impact. The cap further includes a second flange spaced axially below the first flange and configured to engage a gasket to seal the fill neck. The second flange is adapted to remain intact to seal the neck after the outer cover and the first flange are fractured and displaced from the cap.

Abstract: A method of attaching a press-in flange having a tubular portion and a horizontal portion to a tubular mouthpiece of the top plate of a drum or like container by providing a gasket between the tubular portion of the flange and an upward annular projection on the flange horizontal portion, forcing the flange having the gasket thereon into the tubular mouthpiece from below, and outwardly bending the upper end of the flange tubular portion to hold the upper end folded over the upper end of the mouthpiece while bringing the annular projection into intimate contact with the inner surface of a curved portion between the upper and lower ends of the mouthpiece to confine the gasket in a space defined by the annular projection, the curved portion, the lower end of the tubular portion and part of the horizontal portion.

Abstract: An access door for an air conditioning duct or the like has a circular frame intended to be rotated into a circular opening in the duct wall. The frame has an inwardly extending circular shoulder against which abuts a removable circular door held in place by latch means engaging within a circular groove formed in the frame.

Abstract: A storage container forming a compartment for storing garbage or edibles. The compartment is kept sealed from entry by a wild animal by a circular lid member being threadable onto the container member. A plurality of vertically extending hand grips are connected to the lid member at angular intervals. A plurality of peripheral recesses are formed at angular intervals around the rim of the bottom wall of the container that are adapted to receive the forward part of the foot of a user so the user can hold the container member against the support surface with one or both feet while threading the lid onto or from the container member. The generally cylindrical wall of the container is tapered inwardly top to bottom so that a number of containers can be stacked one inside another. Side lifting handles are provided.

Abstract: A method of making a package, and the resultant unique package, are disclosed. Spaced closure/container co-engaging means, such as interrupted thread segments, are disclosed which define open channels permitting rinsing and drainage of product, contaminants and moisture from the areas normally entrapping same between the closure and neck portion of the container. The invention also advantageously permits use of hermetic sealing structures in production processes not heretofore possible.

Abstract: A system is provided for filling, for purifying liquids in a shipping container and for maintaining the high purity during withdrawal from the bulk shipping container of liquids, such as high purity liquids. In the system a specially designed bung adapted to fit shipping containers, such as pails and drums which may be made of a suitable plastic, metal, e.g. stainless steel, or other material of construction. The special bung has at least two openings, including an opening into which is fitted a dip tube that reaches contiguous to the bottom of the container. The special bung also has an opening into which a gas filter can be secured. In the system, the contents of the container can be pumped through the dip tube while maintaining the integrity of the product against contamination. The purity of the liquid can be upgraded by pumping, i.e., recirculating the liquid through a filtration media and returned to the container.

Abstract: A vehicle fuel tank construction which includes a body portion defining a reservoir for a supply of diesel fuel and having a fuel inlet which is provided with a threaded portion or adaptor to which a seal cap or closure is detachably connected. The sealing cap and fuel inlet or adaptor are provided with complementary mating surfaces or threads which will function as a conscience indicator to alert a filling station attendant or person that the tank requires diesel fuel. This is attained by providing the tank cap with complementary thread portion requiring the attendant to remove the cap in a manner opposite to that required of gas tanks used for gasoline. Also, the tank cap may be made in a shape other than round.

Abstract: A disposable oil drain pan and container combination features a large sidewall opening which is sealed by a removable screw cap. The oil pan and container combination is intended for use as (a) a container for new motor oil for purchase at a retail establishment, and (b) a disposable drain pan receptacle for use in changing oil in an automobile. The capacity of the container is preferably five quarts so that its contents can be emptied directly into the crankcase of an automobile during an oil change. After the contents have been emptied into the crankcase, the container assembly is set aside until time for the next oil change. At that time, the large screw cap is removed from the side for the container and the container is laid flat beneath the crankcase so that the used oil can drain directly into the container through sidewall opening. After the draining procedure has been completed, the cap is screwed on securely so that the filled container can be discarded.

Abstract: A specimen container having a laterally projecting pouring spout and a removable cover retained by screw threads in such fashion that the cover closes both the main container body and the pouring spout, the tip of the pouring spout serving as part of the screw threads.

Abstract: A plastic drum and closure assembly for providing a replaceable two-inch straight pipe thread flange includes a synthetic material drum having a drum end which is molded with a two-inch buttress thread opening and an internally splined raised annular boss which is suitably designed and arranged to receive an externally splined plastic flange member which includes an internal series of two-inch straight pipe threads. The flange is secured to the raised annular boss by means of a metal retaining ring which is shaped and conforms to the outer lip portion of the flange thereby providing an outwardly-deformable surface and an inner back-up surface.

Abstract: An access plug for providing a removable closure for a threaded hole in a housing of an electric starter or the like. The access plug is formed of a plastic molding material and has a cap member and a retainer member that are joined by a thin annular frangible portion. When assembling the plug to the threaded hole the plug is aligned with the hole and one end of the plug engages the housing. A tool now applies an axial force to the plug which causes the retainer member to be inserted into the hole, causes the frangible portion to be sheared or broken and causes a portion of the cap member to be inserted into the retainer member. When the frangible portion breaks a bead on the retainer member remains which is engaged by a ratchet tooth of a series of ratchet teeth formed on a part of the cap member.

Abstract: A gas ampoule for the shipment and delivery of radioactive gases. The gas ampoule having a glass tube with serum bottle stopper on one end and a plunger tip in the opposite end all fitting in a larger plastic tube threaded on each end with absorbent between the tubes, is seated onto the internal needle assembly via a bushing associated with the plunger and locked into the syringe barrel via barrel-bushing locking caps. The design practically eliminates the possibility of personnel contamination due to an inadvertent exposure of such personnel to the contained radioactive gas.

Abstract: A molded thermoplastic linerless or self-sealing closure for use with a small container having a thin and accurately formed finish, such as a disposable glass or plastic culture tube. The closure has a top panel and an integrally formed depending annular skirt, and the annular skirt has an inwardly projecting helical thread to permit the closure to be screwed onto and off of a container with a threaded finish. The closure top panel has a thick central portion which is depressed below the top of the closure skirt and a thin annular portion that extends radially outwardly and upwardly from the central portion to the top of the closure skirt. The underside of the closure engages the rim of the container in a pocket formed by the annular portion and the annular skirt, and seals partially on the top of the rim and partially on the inside of it, with the thinness of the annular portion contributing to the deformability of the closure to help provide the required seal with the container.

Abstract: A composite pressure vessel having a large diameter, threaded polar opening with integrally depending threads is disclosed. The threaded polar opening is reinforced by a winding pattern that enables it to be closed against the axial forces resulting from significant internal pressures. This closure seals the interior of the pressure vessel in the tactical rocket motor case assembly disclosed.

Abstract: A high pressure vessel (19), having a curved end piece (22) and an access plug (20) threaded into a recessed hole (26) in the end piece and sealed therein by a weld (46) disposed around the periphery of the plug, is provided with an annular lip (28) around the access hole. The flask lip has a sloped surface (34) that cooperates with the lip (38) of a cap (36) that is clamped to the vessel so that the clamping force on the cap is directed by the sloped surface through the weld to precompress the weld, thereby relieving the tensile stresses on the weld which result from pressure inside the vessel acting inside the hemispherical end piece of the vessel.

Abstract: A closure and boss combination for providing an internally threaded outlet in a drum end includes a raised metal boss formed in the drum end and configured with a pair of concentric axially extending annular walls connected by an annular ring-shaped top surface. Securely crimped within the raised metal boss is a synthetic material closure which includes an internal series of threads surrounded by a crimping flange which includes on its outer diameter surface a series of serrations configured with alternating recesses and protruding portions. The flange includes an interior support surface which is substantially concentric with the outer surface of the serrations and the inner, axially extending wall portion of the boss is contiguous with this inner support surface in order to provide back-up support and preclude close-in of the closure and distortion of the closure threads during the crimping operation and during subsequent stress-inducing operations such as exposure to high-temperature sources.

Abstract: Attachment of a ring, particularly a metal ring (2), to an article which has walls or skirts (1) of fibre-reinforced resin material. The ring has a plurality of external grooves (3, 4, 5, 6). The skirt comprises, for each groove in sequence, a first (32, 36, 37, 40) and second (33, 38, 39, 41) layer of fibre-reinforced resin material. The fibres in the first layer have a substantial orientation in directions parallel with the axis of the ring and extend from the skirt into the respective grooves. Overlying the first layer is a second layer comprising hoop windings from the skirt towards the groove. The second layer lies at least partly in the groove to lock the first layer in the groove. This layering is repeated for each groove and finally successive hoop windings (45, 46, 47, 48) are wound over the entire article. This is useful for attaching end rings to rocket motor cases or for attaching rings to pressure vessels to define an aperture.

Abstract: A hermetically sealable fluid containment assembly is provided. Fluids, such as compressed gases, are typically stored in a base container having a shoulder with a neck projecting outwardly from the shoulder. In accordance with the invention, a collar member generally surrounds the neck and rests upon the shoulder of the base container. A locking arrangement is provided to securely fasten the collar member to the base container. A closure member in the form of a protective cap engages the collar member. To prevent the leakage of fluid between the collar and the base container, a seal is provided between respectively engaging surfaces of the base container and the collar. The leakage of gas between the collar member and the closure member is also prevented by a second seal disposed between respective engaging surfaces of the closure member and the collar member.

Abstract: A cap for a fuel tank has a cap body for screwing into the filler neck of the fuel tank with an "O" ring interposed therebetween, and a lid member for mating to the cap body, both the lid member and the cap body having coacting structure for mutual interengagement to maintain the lid member normally mated to the cap body but separable in break-away relationship from the cap body to leave the cap body intact within the filler neck upon application of external force, such as through collision, to the lid member. The coacting structure may take the form of engaging recesses, holes or grooves on one member and of engaging projections, tabs or pins on the other member.

Abstract: The present invention relates to a fluid reservoir unit designed for reserving a liquid such as brake oil and the like as applied in the field of hydraulic brake system, especially of such construction that there is provided a force ring adapted to engage in cooperation with the top surface of the circumferential edge of a diaphragm covering the opening at the top end of the reservoir body of cylindrical shape, the force ring being defined at its outer circumferential surface with a flanged portion having threads for the purpose that when installing the diaphragm and the force ring onto the cap to be threadedly engaged with the outer circumference of the top end of the reservoir body, the threads in the flanged portion is led to working position while engaging threadedly with the female threads defined in the inner circumferential surface of the cap, so that the flanged portion may be put to dwell loosely rotatably in the inside of the female threads.

Abstract: A storage container forming a compartment for storing garbage or edibles. The compartment is kept sealed from entry by a wild animal by the lid member being threadable onto the container member. A plurality of vertically extending hand grips are connected to the lid member at angular intervals. A plurality of hold down flange members are connected to the bottom of the container at angular intervals so that a user can hold the container member against the support surface with one or both feet while threading the lid onto or from the container member.

Abstract: A centrifuge tube for use in an ultracentrifuge has a closed bottom end shaped to mate with the bottom of a rotor cavity, a body portion and an upper end that terminates in a filler stem. The filler stem may be externally threaded. A removable support crown screws on the threaded filler stem or otherwise fits over the filler stem to center and support the stem within the rotor cavity of the ultracentrifuge. A swage plug fits within the support crown to seal off the inner volume of the centrifuge tube during centrifugation. The tube is filled and access is obtained to the liquid sample by removing the swage plug; sealing is accomplished by reversing the process. In one embodiment a universal crown, of a diameter smaller than the expected diameter of the rotor, is used in conjunction with a support bushing of suitable annular thickness to firmly support the filler stem in the rotor cavity.

Abstract: A container having an overcap, which container is adapted for closure by rotatable attachment of the overcap through a quarter-turn, the container comprising a container body having a neck, said neck having a pair of discontinuous threads describing, in opposed quadrants, arcs of about 90.degree., and a removable overcap having a planar top surface and an ovate skirt and having a cap member extending downwardly from said planar top surface, said cap member being provided with a pair of discontinuous threads describing in opposed aspect arcs of about 180.degree.

Abstract: The invention is directed to a threaded closure for a fuel tank and includes a thread formed on a fuel inlet stub of the tank. A closure cap has a thread for engaging the thread on the inlet stub. A latch member is arranged on the closure cap and includes a peripheral ring which is mounted on the base body of the closure cap so as to be axially journalled thereon for movement between an unlatched position whereat a handle of the peripheral ring projects beyond the upper surface of the base body to facilitate manually grasping the closure cap and for providing a visual indication that the latch member is in the unlatched position. The peripheral ring includes a toothing formed on the inner wall surface thereof for engaging the toothing formed on the outer wall surface of the inlet stub when the latch member is in the latched position thereby preventing an unintended rotation of the closure cap. Also, in the latched position, the handle is recessed in a recess formed in the base body of the cap.

Abstract: A closure device for fluid-tight closure of an opening of a fluid container. The device comprises a casing part (1) and a cap part (2). These parts are injection molded from different plastic materials, preferably from PVC and polypropylene, respectively, one partially against the other. A tubular portion (12) of the cap part (2) intrudes sealingly into a substantially cylindrical hollow space between an internal and an external sleeve portion (3,4) of the casing part (1).