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 coupling for a fire hydrant-fire hose connection includes a first coupling member attached to the fire hydrant and a second coupling member attached to the fire hose wherein both the first and second coupling use a Storz connector. A butterfly valve is mounted within the first coupling to prevent access to the interior of the hydrant and a readily removable cover is placed over the first coupling member to shield the member when the hydrant is not in use.

Abstract: A tamperproof fire hydrant which can only be operated with the use of a special operating tool thus preventing the opening of the hydrant by unauthorized persons for unauthorized use. Additionally the tubular hold-down nut for the operating nut is so designed to prevent unauthorized disassembly of the hydrant by unauthorized personnel. To prevent unauthorized use or unauthorized disassembly the polygonal shaped operating nut is concealed by a dome shaped cap covering both the hold-down nut and the operating nut, the cap being freely rotatable with respect thereto. The dome shaped cap permits only limited access to the operating nut. Additionally the hold-down nut for the operating nut is also protected in this manner and is provided with a specifically shaped outer surface which requires a special tool usable only when the dome shaped cap for the operating nut is removed.

Abstract: A tamperproof fire hydrant which can only be operated with use of a special operating means or tool thus preventing the opening of the hydrant by unauthorized persons for unauthorized use. The hydrant is provided with the usual polygonal end portion of the rotatable operating nut extending out of the top closure member. A dome shaped cap is mounted on the polygonal end portion of the operating nut for free rotation relative thereto, the dome shaped cap having a skirt with the lower edge thereof spaced from the tubular hold down nut or top closure member of the fire hydrant to provide a limited access space to the polygonal end portion for reception of the special operating means. The special operating means is also capable of being used as a tool to remove the nozzle cap off of the usual nozzle and to install the hose coupling on the nozzle.

Abstract: Disclosed is a tank cap retaining structure which may be applied to a machine in which a plurality of tanks, such as a fuel tank and an oil tank, are disposed side by side. The respective outer surfaces of the associated caps of the tanks are formed such as to be capable of detachably engaging each other. Thus, at the time of supply of fuel or oil, there is no possibility that the tank cap in question may be lost or contaminated.

Abstract: A child proof medicine vial is provided having a bead for mating in a recess in a flange in the cap whereby the cap is tightly secured to the vial. The cap is provided with a recess and complimentary slots and inner chamber whereby a panel may be slidable into and out of the cap. When the panel is fully inserted in the cap, there are no projections on the cap for facilitating removal of the cap from the vial. When fully retracted from the cap, the panel permits the user to raise the cap thus permitting access to the vial. When fully retracted, the panel may have indicia to the effect that the vial is nonchild proof. An integral hinge is provided between the cap and vial so that the cap may be flipped away from, yet attached to, the vial.

Abstract: A tamper-indicating closure comprising a disc-shaped top with an upper skirt extending downwardly from the top; an annular upper bead around the inner surface of the upper skirt; a lower skirt proximate to and in center alignment with the upper skirt, the upper skirt being disposed between the top and the lower skirt; an annular retention bead around the inner surface of the lower skirt; a breakable bridge means between the skirts as the sole connection between the skirts; and a tool aperture between the skirts adapted to accept a tool means for breaking the bridge means so as to part the skirts.

Abstract: A disc-shaped inner member engages the valve stem. The inner member has a smooth uninterrupted exterior surface, except for a pair of spaced conical projections. An annular outer member is freely rotatably mounted around the inner member and has two peripheral slots. The actuator has a cap assembly receiving cavity including a pair of conical recesses adapted to engage the projections. Inwardly extending parts from spaced side portions are adapted to pass through the peripheral slots in the outer member and lodge thereunder to permit rotation of the valve stem.

Abstract: An opening means for a vessel which has received powder therein. A handle is provided at one end of a hollow tubular body, and a substantially axially extending slit is provided on the opposite side of the body. Furthermore, a projection is formed on the outer wall of the body. This projection is located so that upon opening, it may pierce the cover means and penetrate it through immediately before peeling off of the cover means starts. This projection is provided with a through hole which has communication between the inside and outside portions of the body of the opening means.

Abstract: An automobile seat belt includes a latch tongue fixed to one belt segment and having a latching aperture, and a latch housing fixed to the other belt segment, having a recess and opening at its distal end to receive the latch tongue. The tongue is automatically latched within the housing by insertion; and the tongue is released by depressing a release button through an opening in the top face of the latch housing. To render the seat belt child proof, one form of safety cover is a sleeve slipped over the latch housing, the sleeve having one end partially closed to pass the latch tongue and the sleeve having a limited access opening in one face to overlie the release button. The sleeve is retained in enclosing position on the housing by the latch tongue. The limited access opening may be a small opening only large enough to pass the tip of the ignition key to depress the release button and unfasten the belt.

Abstract: A food container having a peripheral rim with a recess to enable the lid of the container to be easily removed, a bottle adapted to be held in the container and a divider to divide the container into a number of distinct zones.

Abstract: An automobile seat belt includes a latch tongue fixed to one belt segment and having a latching aperture, and a latch housing fixed to the other belt segment, having a recess and opening at its distal end to receive the latch tongue. The tongue is automatically latched within the housing by insertion; and the tongue is released by depressing a release button through an opening in the top face of the latch housing. To render the seat belt child proof, a safety sleeve is slipped over the latch housing, the sleeve having one end partially closed to pass the latch tongue and the sleeve having a limited access opening in one face to overlie the release button. The sleeve is retained in enclosing position on the housing by the latch tongue. The limited access opening may be a small opening only large enough to pass the tip of the ignition key to depress the release button and unfasten the belt.

Abstract: An adapter for a swinging bucket centrifuge rotor includes a slide plate having a retaining lip and a cam surface thereon. Movement of the plate in one direction to a holding position disposes the lip to hold above the rim of a microtube to hold the same in place. Movement in an opposite direction introduces a cam surface between the rim of the tube and a flange on a closure to thereby uncap the same.

Abstract: A tamper-evident container is supplied which has internal ribs adjacent the upper rim. The rim is provided with an external upwardly opening trough. A lid for the container has portions interfitting with the ribs to secure the lid in place. A portion of the lid overlies the upper rim of the container, and a depending skirt on the lid extends down into the trough about the upper end of the container whereby the skirt is initially hidden and protected against lifting thereof to remove the lid. The upper outer edge of the trough is provided with weakened areas including notches and, optionally indentations below the notches to facilitate tearing of the trough wall in the direction of plastic grain of the container. Such tearing of the wall permits lifting of the lid skirt to remove the lid, and provides a quick visual check that the container has been tampered with.

Abstract: Disclosed are plugs and fasteners which deter unauthorized removal through the use of rotationally symmetric engagement recesses. The invention also provides special tools with projections complementary to the plug and fastener recesses and thereby permit easy removal of the plugs and fasteners without damage. An exemplary embodiment of an inventive plug contains a two-stage recess in lieu of the standard hexagonal head; each of the recess stages is rotationally symmetric, and the two stages have non-coinciding symmetry axes. The rotational symmetry of the recess stages defeats any attempt to remove an inserted plug by forcing commonly available tools, such as hex or square drivers and blade or Phillips screwdrivers, into the recess. An inventive tool for use with this embodiment has a two-stage projection complementary to the recess.

Abstract: A preferred cap for the fill spout of a water bed comprises a screw cap having a top and a threaded flange which is capable of mating with the threaded portion of a fill spout, a turning knob, and a sliding shaft for connecting the screw cap to the turning knob. The shaft allows the knob to reciprocate between a first position substantially abutting the top of the cap and a second position raised above the top. In the raised position, turning of the knob turns the screw cap through the shaft, thereby unthreading or threading the screw cap onto the threaded portion of the fill spout. The knob may also be used as a handle to apply sufficient force to extract a retracted fill spout from its stored position in the envelope of the water bed.To enhance sealing of a cap in a water bed, a sealing thimble may be used to fill the inner volume of the fill spout. An outwardly projecting flange of the thimble bears against the rim of the fill spout.

Abstract: A closure includes a plurality of tabs extending upwardly from its top wall to enable manual application of torque to the closure without gripping of the side wall thereof. The preferred tabs have surfaces defining a plane for supporting the closure in an inverted position for installation of a liner, and do not extend radially beyond the side wall of the closure.

Abstract: A reclosable valve stem actuated valve structure for aerosol-type containers and the like which valve structure is provided with a preassembled but removable external seal. The seal includes a seal member, bonding agent, and a rupturable frangible zone. The valve structure can be associated with an aerosol-type container without interference from the seal and the seal can be opened before the interveningly filled valve-equipped container is used.

Abstract: A child proof medicine vial is provided having a bead for mating in a recess in a flange in the cap whereby the cap is tightly secured to the vial. The cap is provided with a recess and complimentary slots and inner chamber whereby a panel may be slidable into and out of the cap. When the panel is fully inserted in the cap, there are no projections on the cap for facilitating removal of the cap from the vial. When fully retracted from the cap, the panel permits the user to raise the cap thus permitting access to the vial. When fully retracted, the panel may have indicia to the effect that the vial is nonchild proof.

Abstract: A solid core plug formed from wood, plastic, or a composite molded wood material having a substantially cylindrical shape with a body portion and an integral tapered forward portion. The core plug may include a single, tapered ridge element on the outer surface of the body portion for accomodating cores having varying internal diameters within a given nominal size; a core plug removal opening located at its outer surface for increased strength; and, an integral ramp surface and recessed area in the end thereof for accomodating a curved bar removal tool.

Abstract: In a pop-up drain fitting threadedly secured to a spider at the lower end of the drain body, the improvement comprising a detent member pivotally joined to the lower end of the pop-up drain fitting. A stop member is disposed adjacent to the detent member to permit the detent member rotation in only one direction. The detent member depends downwardly by gravitational force to extend through the spider. Clockwise threading motion of the pop-up fitting into the drain body is permitted by the detent arm; counterclockwise rotation of the pop-up fitting causes the spider to impinge upon the detent arm and drive it into the stop member, thereby preventing removal of the pop-up fitting.

Abstract: A plastic fluid tight container and closure assembly comprising a plastic container having a base, a sidewall extending upwardly from the base terminating in a rim defining an opening for the container, said sidewall defining on its inside a sloping abutment surface extending inwardly and downwardly from said rim and an annular notch terminating said abutment surface, and a plastic closure having a circular cover portion, a U-shaped annular rim joined to the periphery of said cover portion, said U-shaped rim having an inner wall and a radially spaced outer wall connected by a base to said inner wall, the outside of said outer wall defining an annular shoulder positioned above the level of the base, an abutment surface extending upwardly and outwardly from the shoulder and an angular annular flange joined to the upper end of the outer wall to form an annular groove, said closure when assembled on said container having its shoulder locked to the notch of said container, its abutment surface in liquid sealing co

Abstract: A stopper for an inspection hole to give an X-ray inspection probe access to the inside of a pipe or other apparatus wherein the stopper comprises a cylindrical outer component (6) having an open end and an inside screw thread (10), said outer component being welded to the wall (1) of said pipe or other apparatus and leaving an outside end protruding therefrom, and a cylindrical inner component (11) having a blind hole and an outside screw thread, said inner component being screwed into the inside screw thread of the outer component and having an outside end which is welded (12) around its periphery to the projecting outside end of the outer component, said blind hole being equipped with means (13) which allow the inner component to be unscrewed from the outer component after the weld (12) joining the outside ends of said components has been broken.

Abstract: A device for use in connection with tapping off fluid from or filling fluid into a container comprises a bell-like housing which is adapted to be removably mounted with an open end thereof over an internally threaded tapping or filling hole in a wall of the container and which is provided with an opening through which fluid may be fed into or discharged from the housing, and a tool for manually operating an externally threaded generally cup-shaped closing plug for said hole, from a position outside the housing. Said tool comprises a shaft which extends slidably and rotatably through a portion of the housing opposite to the open end of the housing, handle means provided at an outer end of said shaft.

Abstract: A resealable easy-opening container comprises an elongate body portion closed at a lower end and open at an upper end which includes a neck having an inner surface and a threaded outer surface, the container having means recessed within the body portion for the attachment of a handle, and a cover threadably connected to the neck of the container, the cover including a top panel having an upper surface and a lower surface; a cylindrical side wall depending from the lower surface of the top panel having a thread on the inside surface thereof for cooperating with the container neck threads; an annular sealing flange extending downwardly from the lower surface of the top panel for engagement with the inner surface of the neck; and gripping means comprising an elongate slot in the upper surface of the top panel and a plurality of vertical ribs about the cylindrical side wall.

Abstract: An improved plastic container and cover with three connections for sealing the cover to the container. The top end of the container has an annular flange on the inner side of its sidewall forming a slot. The cover has two walls extending downward from its outer lip. The walls mate with the slot and the inner portion of the flange so as to form a straight-sided capped container. Slots may be provided in the outer edge of the cover to allow the cover to be pried off the container.

Abstract: The present invention provides an easy-opening container lid, having a tear member which is lifted and removed by a small, hard piece, such as a coin, etc. This container lid is specially constructed such that both the container lid body and tear member can be assured with respect to the safety thereof after the container lid has been opened. The container lid is provided with a pressure removing score so as to prevent accidents from occurring due to the internal pressure of the container when the container lid is opened.

Abstract: A plastic container with a detachably connectable lid having the diameter and circumferential features of a conventional metal paint can is disclosed. The top section of the container includes a projection defining the top end of the wall of the middle section, a neck and an annular bead for engaging the lid. The lid includes an outer flexible leg that snaps over the neck and bead of the top section. The lid can be easily removed by inserting a screwdriver between the lid and the top section in a provided space and lifting the screwdriver. The bottom section of the container includes a projection defining the bottom end of the wall of the middle section, and with the lid are adapted to allow stacking of the container/lid combinations. The projection adjacent the top and bottom of the middle section of the container enable the container to be handled by labeling machinery used in conjunction with conventional metal paint cans.

Abstract: An improved plastic container and closure comprising an open end container having a bottom and side wall extending upwardly therefrom; a cylindrical collar connected to the side wall through an annular transverse wall, the collar and annular transverse wall having at least one vertical slot therein, the side wall below the upper edge of the container having an external annular shoulder; and a closure defining a circular disk and a cylindrical skirt extending from the periphery thereof, the skirt on the inside thereof having an annular shoulder spaced from the disk a distance greater than the distance of the shoulder on the container from its upper edge so that when the closure is fitted over the container the skirt fits between the container wall and collar and the shoulder on the skirt snaps over the shoulder on the container to maintain the closure in a fitted position.

Abstract: A vessel includes a body having a chamber normally containing pressurized gas and enclosed by a removable closure provided with a gas charging valve. Inadvertent disassembly of the closure when the chamber contains pressurized gas is precluded by a planar cover plate captively retained by the charging valve and normally masking tool-receiving members on the closure. Removal of the valve/cover plate unit initially releases a resilient seal carried by the inner face of the valve juxtaposed the outer face of the closure and subsequently progressively exposes to the atmosphere a gas bleeding passage formed in the attachment stem of the valve to gradually release all pressurized gas from the vessel chamber. The closure is only accessible for disassembly following complete removal of the unitary valve and cover plate after which all gas under pressure in the chamber has been relieved.

Abstract: A container system comprising an outer container containing a glass or plastics vial wherein the latter is to be opened without the danger of injury to the operator due to spillage from the vial. The outer container has a screw-top lid which has an engaging cavity whereby, once unscrewed from the container, it may be engaged with the top of the vial itself (which is revealed when the lid is unscrewed) and manipulated to remove the vial top in safety.

Abstract: A multilobe bonnet is provided for the upper end of a fire hydrant with the multiple lobes thereof projecting upwardly from the bonnet at points spaced about and radially outwardly from the conventional pentagonal upper terminal end of the hydrant valve control rod, the upper terminal end projecting above the upper surfaces of the bonnet disposed centrally between the upwardly projecting lobes disposed thereabout. In addition, the side outlet closure caps of the hydrant are formed in a similar manner with the lobes on the bonnet preventing the engagement of a convention wrench with the valve control rod upper terminal end and the lobes on the closure caps similarly preventing engagement of conventional wrenches with the central pentagonal projections on the caps.

Abstract: A product container which is suitable for retaining flowable type materials and which comprises a container portion and a removable closure portion, both of which are formed from a semi-rigid thermoplastics material. The container portion has a marginal lip which incorporates an inwardly directed bead which defines an opening to the container. The closure has a central region which locates within the container opening and an inverted U-shaped rim portion which engages the lip of the container. The rim portion of the closure includes an inner skirt which locates within the lip of the container, which incorporates an outwardly projecting ledge which engages with an undercut below the container bead, and which flares downwardly and inwardly to merge with the central portion of the closure.

Abstract: A single service childproof container closure for closing the nozzle of a plastic or other container comprising a non-removable closure having a non-replaceable breakaway cap for implant into the nozzle of a container.

Abstract: A container with a lid has a base, a side wall and an open top which the lid closes. It is made by separately moulding in plastics the base and the ring defining the open top, with the side wall being moulded integrally with one or both of these parts, and then joining the parts together by bonding or welding. The top ring is moulded with a flange which extends inwardly and downwardly and receives a mating closure flange on the lid to give a resilient sealing fit.The lid may be a snap-on fit having a skirt with an inward bead or groove for engaging a complementary groove or bead on the container. The skirt may be accommodated in a rebate at the top of the container and may be levered away from the lower shoulder of the rebate to remove the lid. Damage to the seals between the lid and the container due to excess force exerted in machine fitting of the lids is avoided by abutments located in the rebate for preventing excess movement of the skirt of the lid.

Abstract: A container having a generally cylindrical body closed at the bottom and open at the top with a container rim having a top edge defining an open top and two spaced apart downwardly extending legs, means securing the top of said cylindrical body between the legs upon insertion of the body therebetween, circumferential spaced apart wall sections acting as retaining members exterior to and laterally spaced from the top edge, and a plurality of spaced apart grooves in the exterior surface of the rim near and parallel to the top edge forming a first set of teeth.

Abstract: A decomposition vessel comprises a rigid bucket of a plastic material resistant to chemical attack, totally enclosed in a supporting metal vessel which consists of a cylindrical supporting member and of a flat cap adapted to be screwed onto the supporting member so as to close the vessel tightly. Sealing means are provided between the opposed flat faces on the cap and the supporting member in the form of a sealing disc adjacent the flat cap and an outwardly exending flange integral with the rigid bucket in contact with the disc and with an upper planar face of the supporting member.

Abstract: A container for an alarm transmitter used in combination with components of a transmitter circuitry which includes voltage control for providing a gated voltage and controlled by a timing circuit. The components also include an audio multivibrator which is electrically coupled to the voltage control in order to receive the gated voltage, a microfork audio filter which is electrically coupled to the audio multivibrator and a modulator which is electrically coupled to the audio multivibrator. The components further include a radio frequency oscillator whose frequency is modulated by the modulator and which has an antenna electrically coupled to its output terminal. The container includes a tubular member which is adapted to be installed into a hole in a wall adjacent to a door or a window and an elongated, rectangular member adapted to be inserted into the tubular member and also adapted to have the components of the transmitter circuitry placed thereon.

Abstract: A lockable closure for a container having a foldable annular wall advantageously has locking means whereby the closure can be releasably locked to the container. The closure has an annular bendable wall adapted to be disposed at least partially in contact with the annular wall of the container. The bendable wall has a reversely bent annular lip adapted to be disposed about the outer edge of the annular wall of the container. Upon the closure being disposed with its reversely bent annular lip disposed about the outer edge of the wall of the container, the bendable wall of the closure and its annular lip are deflectable with the foldable wall of the container to fold the bendable wall into and out of locking engagement with the foldable wall of the container. The closure is retained in either the locked or unlocked positions without additional forces or apparatus as it is substantially in a zero stress condition at these positions.

Abstract: A construction for protecting a member, such as an adjusting screw or fixing bolt, fitted to a base, from being tampered with, including a wall formed generally in the shape of a hollow tube, attached by one of its ends to the base, and surrounding the member to be protected, and a plug inserted into the other end of the wall so as to be wedged into it, with a slot being formed in the wall, extending along the axial direction of the wall from the end of the wall remote from the base, to a slot bottom at an axial position between the free end of the wall and the base, the slot bottom being closer to the base than is the part of the plug which is closest to the base, so that a gap is left between the bottom of the slot and the bottom wall of the plug for a removing tool to be inserted to lever the plug out of the end of the wall.

Abstract: A one-piece child-resistant dispensing closure for a container which has an open end. The closure has a skirt which mates with the end of the container and a top which spans the space defined by the skirt. Preferably there are two dispensing openings through the top, each of which is surrounded by an upwardly extending rim. The closure also comprises a lid for each opening and a hinge for each lid. The hinges and lids are integral parts of the closure. The lids have similar rims which fit around the rims on the closure top when the lids are swung over to close the dispensing openings. In the closed position, ribs on the edges of the pairs of opposed rims snap over each other and ears on the inner sides of the lids are closely spaced from a fulcrum on the closure top. The engagement of the ribs holds the lids closed. Pry means, such as a coin or blade, may be inserted between the fulcrum and a lid ear to pry the particular lid open.

Abstract: A threaded lid for closing the opening in a pump housing having a body portion and a gripping formation defined by a ridge on the body portion having a central portion and projections extending beyond the central portion. A juncture between the central portion and each of the projections varies gradually from a rounded angle at one terminus of the juncture to a gently sloping ramp at the other terminus of the juncture, so that a simple elongated tool such as a stick may be placed between the projections of the gripping formation and rotated to loosen the lid, but not to tighten it. Furthermore, the mildly curved S-shape provides surfaces which conform to the hand to enable substantial manual loosening force to be applied comfortably to the lid, whereas the surfaces of the gripping formation engaged by the hand to tighten the lid are not conducive to the application of a substantial amount of manual force.

Abstract: There is disclosed a container for containing a liquid such as paint, the container having a side wall and a bottom moulded in one piece from plastics material, the container being formed to co-operate with and retain a removable lid, and comprising a flexible inwardly projecting flange moulded integrally with the side wall and adjacent the top thereof, the flange being upwardly and inwardly inclined at its attachment to the side wall. Because the flange is flexible and is inclined to the side wall at its point of attachment to the side wall, the core on which the container is moulded can be withdrawn from the container past the flange, as the flange will deflect and ride over the core. The flange then springs back to its inwardly projecting position and serves to prevent liquid slopping out of the container if the container is filled with liquid on a standard filling line such as is used for metal lever-ring paint containers.

Abstract: The present invention pertains to releasable locking mechanism for a hollow circular member such as a fill pipe for an oil tank and cup-shaped closure cap of non-magnetic material which is connectable to the hollow circular member, in combination with a locking member of ferrous material supported by said cap for axial movement vertically relative to the cap and hollow circular member but non-rotatable relative to the cap, one end of the locking member having a configuration that is engageable with the hollow circular member in non-rotatable relationship to prevent rotation of the cap with respect to the hollow circular member when the locking member is in the latter position, the locking member being adapted to be raised from said locking engagement with the hollow circular member by a magnet which may be mounted within a wrench for use with the cap to remove the same from the hollow circular member.

Abstract: A container having a rigid wall with a sacrificial anode non-removably attached to the inner surface thereof. Both the container wall and the anode are formed with nested integral rivets, whereby the anode is held in close contact with the container wall. Formation of the rivet on the container wall causes fracture of the protective enamel or lacquer coating thereon, and exposure of the underlying metal, whereby electrical contact between the anode and the container wall is established.There is also disclosed a method or methods of achieving the attachment of the anode to the container wall in accordance with the present invention.

Abstract: There is disclosed herein a fire hydrant protection device which prevents unauthorized individuals from tampering with or operating fire hydrants. In one form the protection device provides an outlet cap member provided with a projection suitable for engagement by a special wrench such as for removal or installation of the cap and a cover member movably associated therewith which includes provisions preventing access to the cap member projection by conventional tools thus insuring that only authorized individuals will be able to remove the device. In another form, the device is designed to be installed over the valve actuating mechanism so as to similarly prevent access thereto by individuals not having the special wrench.

Abstract: A container closure especially for large containers and having circumferentially spaced tool access regions in a rim flange for insertion of a removal tool. These access regions are located between a base of the flange and a locking bead. Between the access regions, sections of a discontinuous locking bead extend around the inside of the flange, the bead being discontinuous across the circumferential area occupied by the access regions to enable a removal tool to be inserted downwardly through the access regions and between bead sections. Rim stiffening protrusions project from the outer surface of the flange beneath the access regions and across the circumferential line of the locking bead to stiffen the flange to prevent it from splitting when a removal tool is inserted down through the access regions and between bead sections.

Abstract: In a container and closure assembly, there is a resilient seal between the two components and the resiliency of the seal determines the normal relative closed positions of the closure and container. When the assembly is included within a stack, there is movement of the closure in the closing direction further to compress the seal. To prevent over-compression of the seal, opposed movement limiting surfaces are provided upon the closure and container, these surfaces being slightly spaced normally, but closing together to take loads directly from closure to container and thus avoid overloading the seal, when the assembly is located in a stack.

Abstract: A child resistant overcap which is engageable over an end of an easy opening container for preventing access to the easy opening feature of such container. The interlock between the overcap and the container is such as to require rupture of a rupturable section of a skirt of the overcap utilizing a tool before the overcap can be removed to provide access to the easy opening feature of the container.

Abstract: A lightweight pressure release plug is retained by two cam-shaped pivoting arms. The plug is released by dropping a cam shaped weight which rotates the arms to release the plug.