Abstract: This invention relates to a safe cartridge for gas and intends that, when the cartridge has been overheated and the inner pressure has abnormally risen, let an invisible crack open in a suitable area of the cartridge to escape the inner gas gradually to reduce the inner pressure, without gushing out a large quantity of the gas in a moment, as in usual rupture discs, to prevent the flying of the cartridge by the force of reaction.

Abstract: A container and lid combination in which the lid is removable from the container to open the container and it is replaceable to close the container. The container has a body with a mouth including a strip of annular extent secured to the lid. The body has an annular weakening notch in the vicinity of the strip and the container is separable at the notch to separate a part of the container mouth and the lid together with the strip from the body of the container. The notch is positioned radially inwards of the strip and upon rupture of the notch separate parts are formed which can be reengaged upon replacement of the lid on the container. Locating surfaces are provided on the lid and container for establishing a determined oriented position of replacement of the lid on the body of the container.

Abstract: A hermetically sealed container with plural access ports is provided. The closure includes a severable dome unitary with the container and positioned over the container access opening. The dome is severable from the container by the action of a collar threadedly attached to the container. The dome is further provided with an access aperture that is closed off by a twist-off cap which, upon removal, exposes the dispensing aperture.

Abstract: The front trim of a panelboard consists of a front plate having an interior opening surrounded by a rearwardly extending lip, and a face plate having a forwardly extending lip disposed in telescoping relationship with respect to the lip of the front plate. Adjusting means are provided to move the face plate forward and rearward while the front plate and the panelboard interior remain stationary. The face plate is provided with twist-outs which are pressed forward so that during removal thereof they cannot be punched to the rear into engagement with live conductors of the panelboard interior.

Abstract: A tamper-proof cap and neck assembly made of stretchable plastic material in which the neck has portions fitted within and about a short metal neck portion of a container which serves as a rigidifying back up for the plastic neck and for a locking shoulder on the neck to provide a deflection resistant structure and thereby prevent a tamper-indicating ring connected to the cap from slipping off the shoulder without tearing upon initial unthreading of the cap. This rigidified structure also facilitates application of the tamper-indicating ring during initial threading of the cap onto the threaded neck at which time the ring is stretched over the shoulder by a capper bead which engages force-transmitting posts integral with the ring for forcing the ring over the locking shoulder, the band being stretched between the posts and extending beneath the shoulder as chordal segments.

Abstract: A break-away gas cap includes an inner member having a central portion adapted to close and seal an opening in gasoline tanks, such as the gasoline fill neck of an automobile, and an outer shell that engages and is carried by the inner member and provides a hand-engaging surface to be used to insert and remove the gas cap. The inner member includes weakened portions between its closure portion and the portions carrying the outer shell to enhance breakage of the outer shell from the inner member in the event of impact, such as an automobile accident, without affecting the closure and seal of the gasoline tank.

Abstract: Improvements in or relating to caps for containers, particularly aerosol containers, of the type comprising inner and outer skirt portions fast with each other by means of a top disc member, wherein the inner skirt member is seamable to the container through lugs and has a weakened zone which can be filled through rotation of a tab, which is integrating part of the cap and is joined at one end to the outer skirt member through a readily breakable lap.

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: The functioning of the cap part of a closure device having a thin-walled packing container is improved by applying a non-perforating score to the cap part in a position perpendicular to the direction of pull of the pull ring of the cap part.

Abstract: A retractable environmental seal for use in sealing the opening of the exit cone for a rocket nozzle comprising a diaphragm-like cover having a central region adapted to be seated in sealing relation with the periphery of the opening and characterized by radially extended failure zones for facilitating a pressure-induced rupture of the cover, and a plurality of angularly spaced tension springs connected with the peripheral portion of the cover for retracting fractured segments of the cover from the opening subsequent to a pressure-induced rupture thereof.

Abstract: A frangible member isolates a rupture disc from a pressurized fluid system. Under abnormal conditions such as might be encountered in a crash or derailment, the frangible member breaks and thereby permits direct contact of the rupture disc with the fluid system. If the pressure is sufficient, this causes the rupturing of the disc and the venting of the fluid system down to atmospheric pressure.

Abstract: A tamperproof container and cap assembly in which the container carries a circumferential radially extending flange which cooperates with the skirt of the cap to prevent the cap from being removed until a portion of the cap skirt is removed. The cap skirt comprises an upper portion and a lower portion, with the lower portion forming a tear-off strip that is connected to the upper portion by means of vertically oriented stacking ribs. The ribs are dimensioned so as to allow a plurality of caps to be stacked upon one another. The lower portion of the skirt defines an opening which enables an operator to insert a tool therein and then to tear the lower portion away from the upper portion.

Abstract: A sheet plastic lid for open-mouthed containers with a tear-away section therein is provided in which the tear-away section is removable by an upward and outward motion. A raised central area of the central web of the lid merges with the top surface of the rim or bead cavity and contains score lines defining a central tear tab and a major portion of the tear-away section, the lines diverging and stopping substantially inboard of the top surface of the bead cavity. Then with the lid on a container, when the tab is freed by penetrating the raised area at the innermost score lines it is pulled upward and outward to constrain the divergent score lines to effect predictable tears through the bead or rim cavity structure to remove the tear-away segment and leave the remainder of the lid intact on the container.

Abstract: A sheet metal container wall or end closure is provided which includes a weakening line in the sheet metal and a rib formed across the weakening line to facilitate rupture of the residual metal in the weakening line. Such container wall may also have a hollow button formed in it with the weakening line and rib formed in the button whereby flexing of the button stresses the rib and weakening line to initiate rupture of the residual metal in the weakening line.

Abstract: One-piece, pushbutton dispensing cap for pressurized containers comprises a pushbutton mounted in a recess in said cap and attached to the remainder of the cap by frangible connecting pins. The pushbutton is located between guide slides which guide it in translational movement axially of the cap after said frangible connecting pins have been broken by depressing the pushbutton relative to the remainder of the cap.

Abstract: A backstrip that overlies a portion of an aquarium includes a plurality of openings of different sizes and shapes through which accessories can be inserted downwardly into the aquarium. A cover is provided for each opening, and has a flange on its underside for engaging the walls of the opening, and some covers have break lines along which they can be separated into sections used to partially cover the associated openings.

Abstract: A container such as a metal top can containing a liquid to be dispensed by perforating the can top has an annular metal top having a concentric opening sealed with an easily perforatable thin film material. The thin film material extends across adjacent to the undersurface of the annular metal top and is sandwiched between the container top and the can body at the rim in a usual rim bead crimping operation, which leaves a projecting edge portion of the thin film outside of the rim. This edge of the film is then melted away by a hot sleeve or by spinning the sealed can relative to a hot element. The thin film material, which may be a polyester plastic, is selected to be sufficiently strong to protect the container contents during normal handling yet is more readily perforatable than the container top itself would be.

Abstract: A combined container and container opener is disclosed, which is formed as an integral unit with a top end wall of the container having at least one punctum positioned on its surface, and the bottom end wall of the container having at least one protruding member being positionally mounted in vertical alignment with the corresponding punctum of the top end wall. To effect opening of the container, one container having the bottom end wall protruding members is aligned on top of a second container having the top end wall with correspondingly shaped and sized puncta, and by the use of manual pressure, the protruding members will puncture the puncta to permit access to the contents of the punctured container.

Abstract: A mounting panel for technical instruments consisting of a number of smaller panel elements which are provided with instrument holes and which form a system of modules. The panel is provided with weakenings so that elements of the panel may be broken away for adapting the panel to the desired size. Weakenings are also provided in the panel which run between adjacent holes so that the middle portion between four or more of the holes may be knocked out to obtain a larger opening to fit larger instruments.

Abstract: A molded synthetic resin open-sided box mountable in walls and ceilings for enclosing terminals and connections for electrical conductors extended through walls of the box, and providing access through a switch plate secured over the open side of the box. The box has integrally molded break-out windows extending between several of the intersecting walls of the box. Each of these break-out windows includes a removable panel retained in a surrounding opening by frangible interconnecting strips or bridge webs on opposite sides of the panel. Mounting screw holes are formed in the synthetic resin of the box at locations adjacent the open side thereof, and spring metal screw retaining clips are mounted in the box adjacent these holes so that parts of the clips project into the path of the shank of a screw extended into the holes to engage the threads on the shank.

Abstract: The invention is directed to a metallic easy-opening can end, and to a method of manufacturing the same, the can end having a tear panel which is highly resistant to blowout pressure. The can end is first drawn between a preforming punch and a die to an outwardly open concave configuration, and is thereafter compression scored between a scoring punch and a scoring anvil to reduce the thickness of the drawn metal, thus forming the removable tear panel.

Abstract: A container wall is disclosed having vent means in it for forming an opening in the container wall by digital force to release the pressure in a container which includes such wall. The force required to actuate the pressure release is not significantly affected by the internal pressure in the container due to the particular construction of the container wall as including two outwardly projecting hollow embossments separated by an inwardly projecting hollow rib with a score line across the rib near its middle. Each embossment has a top wall and a side wall therearound connecting the top wall to the adjacent portion of the container wall and with the side wall at both ends of the rib being generally transverse to the longitudinal axis of the rib. The apex of the rib is generally coplanar with the general plane of the container wall adjacent to the embossment and the side wall of each embossment is preferably thinner than the material in the adjacent container wall.

Abstract: The invention is directed to a metallic easy-opening can end, and to a method of manufacturing the same, the can end having a tear panel which is highly resistant to blowout pressure. The can end is first drawn between a preforming punch and a die to an outwardly open concave configuration, and is thereafter compression scored between a scoring punch and a scoring anvil to reduce the thickness of the drawn metal, thus forming the removable tear panel.

Abstract: A guard flange extends about the sidewall of the container immediately below and outwardly beyond the skirt of the lid, with weakened portions of the guard flange providing a removable section thereof which may be broken away to unshield a portion of the lid's skirt and permit removal of the lid.

Abstract: Knockout window means include a knockout port formed primarily in a sidewall of an electrical assembly box and a knock-out panel superposed over the knockout port from the inside of the sidewall. The knockout panel is attached only at its front and back ends to the box, the front end being connected to the inside surface of the sidewall and the back end being connected to the backwall, each by a frangible web which provides doubly accessible panel removal slot means between each end of the knock-out panel and the structure to which each is attached. The panel removal slot means are accessible from both the outside and the inside of the assembly box at each end of the knockout panel, and include four pairs of bearing surfaces against which a wedge-like tool may bear for applying twisting leverage to fracture the webs.

Abstract: A container assembly wherein an initially filled container and its closure cover have coextensive flat edge regions attached by welds and also have independent snap fit connection. To safeguard against unauthorized opening and reclosing, provision is made for producing a tear line pattern in the cover upon detaching the edge regions at the welds, such rendering the edge regions incapable of undetectable reassembly to initial cover closed condition, but not affecting the ability of the snap fit connection to more or less temporarily reclose the assembly.

Abstract: There is provided an improvement in a molded plastic container lid for sealing an open top container including a peripheral wall having an inner surface, a top edge and provided with an outwardly projecting, peripheral sealing bead with a downwardly facing portion. This type of lid includes a circumferentially extending bead engaging means including first means for engaging the inner surface of the peripheral wall and a second means for engaging the bead. The second means includes an inwardly extending ledge means having an upwardly facing surface for engaging the downwardly facing portion of the bead. This improvement comprises providing the upwardly facing surface of the inwardly extending ledge means as a horizontal surface.

Abstract: A disposable end closure for pipe and tube ends such as, for example, vehicle fuel filler openings. The disposable end closure includes a cylindrical portion for inserting axially into the open end of the pipe or tube. The cylindrical portion has an outside diameter slightly smaller than the inside diameter of the pipe or tube. At the axially outer end of the cylindrical portion is a first flange which extends radially outwardly from the cylindrical portion. The axially inner end of the cylindrical portion is closed. A second flange extends radially outwardly from the sidewall of the cylindrical portion and engages the inner wall of the pipe or tube axially inwardly from the end thereof.

Abstract: An easy tear-open or breakaway port for a container wherein the breakaway line is provided by a preweakened portion having a reduced wall section with the width varying in a uniform and progressive manner from a minimum width to a maximum one. The breakaway feature is readily adaptable to plastic containers and can be utilized in conjunction with a handle or gripping member to facilitate the tearing along the preweakened portion.

Abstract: Cap seal made of a material having some elasticity and including a circular top wall, a peripheral wall and an inward annular projection formed on the inner surface of the peripheral wall and engageable with an outwardly projecting edge at the upper end of a mouthpiece of a drum. Each of the circular top wall and the peripheral wall is formed with a groove for removing the cap seal.

Abstract: A lid for a cup is disclosed. The lid has a wedge shaped piece, that may be referred to as pie shaped with its point adjacent the center of the cup and extending out past the outer rim. A sheet of material, slightly larger than the wedge shaped piece, having an adhesive coated backing is attached to the wedge shaped cut out piece and holds the wedge shaped piece in its proper place on the lid. The adhesive sheet has an end tab which may be grasped by the operator to pull the adhesive coated sheet from the lid and with it, the wedge shaped cut out.

Abstract: A seal in or for a blood bag has a first tamperproof seal consisting of a tube with an end wall separated by a line of weakening from an access passage. The line of weakening is torn open to gain access to the passage. The end wall is attached also by a flexible strap, and the action of tearing the line of weakening open renders available a plug also borne by the strap. Resealing by this plug is also tamper-proof in the sense that the plug cannot be removed without evidence that removal has been done or attempted.

Abstract: A thermoplastic cap having an annular skirt with external left-handed screw threads thereon and a lateral external frangible brim at a lower end of this cap. The cap fits over a dispensing outlet of a thermoplastic bottle and the brim is precision fused to the bottle to form a hermetically sealed container for sterile medical liquids. An annular jacking ring with internal left-handed threads screws onto the cap skirt to open the container by fracturing the cap at its laterally extending frangible brim.

Abstract: A method of scoring and a scoring tool which enables the scoring of laminated metallic container walls with a wide range of scoring indenter working face widths and which also enables the scoring of conventional and non-repair coated metallic container ends to thin residuals with a narrow, typically about 0.001 inch working face width, indenter. The method essentially consists of applying a compressive force between the principal score line and the wall periphery such that the force is closely spaced to and substantially coextensive with the score. This compressive force may conveniently be applied by a second scoring indenter having a lesser penetration depth than the primary score indenter.The scored container wall produced by the above described method of scoring and the scoring tool.

Abstract: An easy-open wall for a container and associated tab is provided and comprises an approximately U-shaped score line in the wall with the score line having a bight and a pair of extensions extending from the bight and having arcuate end lengths terminating in spaced ends. The spaced ends have a portion of the wall therebetween and the score line defines a panel which is completely severable from the wall while remaining attached at the wall portion to define an opening in the wall. The tab is attached substantially flatly against the wall and has a forward portion which overlies the panel adjacent the arcuate end lengths and has a rear portion with the rear portion being easily grasped and lifted to urge the forward portion against the panel to thereby sever the panel first along the arcuate end lengths and then progressively along the extensions and bight to move the panel within the container with the wall portion holding the panel securely to the wall.

Abstract: A sealing device adapted to be removably attached by adhesive means to a can or the like, said device being of sufficient size and shape to cover and seal openings in said container. The device consists essentially of two elements, a single piece of adhesive-backed sealing material, separated into two parts by a perforation, placed over the opening of the container and a finger catch element for separating the two parts of the sealing material along the perforation and removing that part of the sealing material which covers the opening into the container.

Abstract: A mounting plate adapted to mount a transformer on an electric circuit enclosure. The mounting plate is provided with a dual function knockout arrangement so that the transformer to be mounted can either be surface mounted with different types of mounting means, or can be recessed into the plate by the removal of the entire knockout portion.

Abstract: A method of scoring and a scoring tool which enables the scoring of laminated metallic container walls with a wide range of scoring indenter working face widths and which also enables the scoring of conventional and non-repair coated metallic container ends to thin residuals with a narrow, typically about 0.001 inch working face width, indenter. The method essentially consists of applying a compressive force between the principal score line and the wall periphery such that the force is closely spaced to and substantially coextensive with the score. This compressive force may conveniently be applied by a second scoring indenter having a lesser penetration depth than the primary score indenter.The scored container wall produced by the above described method of scoring and the scoring tool.

Abstract: This specification discloses improvements in easy-opening closures of the push-in type in which the closure member at least partly overlaps with the aperture surround to define the easy-opening closure. The improvement comprises forming the free edge of the closure member and the aperture surround with interengaging portions which at least substantially inhibit the movement of the closure member relative to the aperture surround. In one preferred form of interengagement the closure member is formed with an upstanding lip and the aperture surround is downwardly turned about said lip. In another form both the aperture surround and the closure member are formed with interengaging lips. In another form the aperture surround is grooved and the lip on the closure member engages the groove. In the last form the aperture surround is formed with a lip which is stamped into the closure member to key the two parts together.

Abstract: A container closure of the type having a friction fit on a container and including a depending skirt radially inwardly deformed below a radially outward projection on the container body is provided with a peripheral weakening line generally at the point where the skirt of the closure tends to bend below the body projection and wherein tensioning means are carried by the lower skirt portion for radially inwardly tensioning the skirt portion below the line of weakening so that by utilizing the tensioning means, the lower skirt portion may be detached from the remainder of the closure and the closure being free to be removed from and replaced on the container. The tensioning means is also utilized to tightly clamp the removed skirt portion to the exterior of the container so that the removed skirt portion is not discarded separately from the container.

Abstract: A unitary beverage container lid allows easy opening and drinking therefrom without the generation of removable parts. The lid, which may be integrally formed with the cylindrical sidewall of the container, incorporates a generally dome-shaped central portion incorporating a pair of radially projecting abutting ribs. The line defining the adjoining edges of these ribs is scored for easy tearing. The dome-shaped central portion terminates with a downwardly, inwardly projecting peripheral sidewall that is sealed to or integrally formed with the cylindrical sidewall of the container. An upstanding arcuate rib with tapered ends forms a portion of the terminating region between the central portion and the peripheral sidewall and is scored by an arcuate score line.Initial depression of a centrally located button on the dome-shaped portion of the lid causes the tapered rib to tear from the sidewall of the lid, thereby initiating the separation of the two abutting ribs.