Abstract: A disposable lid for a drinking cup is provided, where the lid has a generally circular cavity formed around the periphery thereof to accommodate the lip of the circular mouth of a cup, and so as to fit snugly thereover. The central portion of the lid is generally planar, and there is a skirt portion which depends downwardly and outwardly from the cavity, and has a pair of cuts formed therein at the rim and through the thickness thereof, the cuts being spaced apart from each other a distance less than 25% of the circumference of the rim--generally they are spaced about 30 to 60 degrees apart. The rim cuts may be either notches or slits. A second cut is made in the central portion of the lid through the thickness thereof, in a place radially inwardly from the cavity but at a distance less than the radius of the lid, and has a length so as to extend at least between imaginary diameters that are drawn through the rim cuts.

Abstract: A non-reusable tamper indicating package comprising a container and a closure. The container has a body portion and a neck portion defining an opening and having an annular bead spaced from the end of the neck. The closure has a top wall and a peripheral skirt and a retention and holding bead on the skirt adapted to engage the annular bead on the container. The closure includes spaced score lines on the skirt and a portion of the top wall defining a severable portion of the skirt between the score lines such that when the severable portion is pulled outwardly and upwardly, the closure is severed along the score lines. A foil sheet having a layer of thermoplastic material on each surface thereof and is thermally bonded to the upper end of the container. A liner ring overlies the foil sheet and is thermally bonded to the thermoplastic material on the foil.

Abstract: A rigid container having a metal or plastic lid seal cap for bottling contents such as beverages therein, the cap having tabs on its depending circumferential flange for easy removal and a central convex ring configuration to provide increased rigidity to the seal and nesting and stacking strength. Optionally, a peelable opaque film can be removable secured on the container to protect the contents from light. Upon removal of the film, the container may be used as a household drinking glass.

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 container having a threaded neck is provided with a removal resistant cap which can be applied to the container neck by rotational thrust. The cap has a depending skirt having an internally threaded lower section with the threads terminating in a bead intermediate the ends of the skirt. The neck has an upper threaded section with the threads terminating in a bead spaced below the top of the neck. When the threads of the cap are engaged with the threads of the neck and the cap is rotated relative to the neck, the skirt will circumferentially expand so that the skirt bead passes over the neck bead. At that point, the threads will no longer engage and the interlocked beads will inhibit removal of the cap. Means are provided to enhance removability of the cap from the neck by tearing away a portion of the skirt.

Abstract: A safety closure, preferably for a medicine bottle, has a screw cap (20) or another closure cap which is to be rotated to be applied or removed, and a blocking mechanism in the form of an elastically resilient blocking means (16) on the bottle neck (11) or a collar securely mounted on the neck, and a stop face (26) on the closure cap. The cap has an area (27) of reduced wall thickness which is opposite the blocking means in the closed position and permits the blocking means to be actuated by external pressure on the cap. When the cap is rotated in the direction of removal from the closed position, the stop face encounters the blocking means and prevents additional rotation, unless the blocking means is pressed clear of the stop face by pressure on said area of the closure cap.

Abstract: A tear-off bottle cap formed of light metal material having a disc-shaped top panel surrounded by a circumferential flap. Two lines of incision are formed in the cap top and flap defining a tear-off band which commences in a radially extending pull-out tongue. A disc-shaped gasket is secured to portions of the cap top undersurface but not to the tear-off band to permit reuse of the torn open cap as a temporary cover.

Abstract: A sealing cover has an upper layer of plastic film substantially impervious to moisture and bacteria. A second layer of metal foil film is bonded to the plastic layer with a layer of adhesive or by extruding the plastic onto the second layer. An additional layer of adhesive material is bonded to the second layer for adhering to a carrier liner in packaging the seal and engaging the container top in resealing the container upon removal from the carrier. Upon removal of the sealing cover from a container, telltale strips of the cover are left in engagement with the container to indicate the seal has been removed. In another embodiment, a layer of metal foil is laminated between two layers of plastic film. Slits may be formed in the cover to promote its tearing to leave telltale sealing strips on the container upon removal of the cover.

Abstract: A flexible plastic sealing cover has a container cover area and pull-tab area. In one embodiment, an upper layer of plastic film is substantially impervious to moisture and bacteria. An orientated plastic film layer is bonded to the upper layer with a layer of adhesive, such that the orientated plastic layer promotes tearing when the cover is removed with the pull-tab. An adhesive material is bonded to the layer of orientated plastic film for engaging and sealing the container top of a IV solution container. In removing the sealing cover from a container, telltale strips of the cover are left in engagement with the container to indicate the sterilized seal has been removed. In another embodiment, a single layer of plastic film substantially impervious to moisture and bacteria is bonded with a layer of adhesive material. Slits may be formed in the plastic layer to promote its separation to leave telltale sealing strips on the container upon removal of the cover.

Abstract: A tamper proof lid which includes a crown having means for interlocking with a container neck finish. The crown has a depending skirt which incorporates a frangible portion and there is a handle which is secured to the frangible skirt portion generally as a continuation thereof and disposed radially outwardly of the adjacent part of the skirt. There is a rupturable webbing extending between the handle and the skirt which, when broken, indicates that the lid has been tampered with. The interlock between the crown and a container neck finish is sufficient to retain the crown in place under all conditions. The depending skirt initially provides for a hermetic seal. The lid is preferably formed of a relatively rigid material, such as polypropylene, which makes it virtually impossible to remove the crown from an associated container neck finish. The handle, once it initiates rupture of the skirt, is required to effect an upward prying and peeling of the crown from the associated container neck finish.

Abstract: A tear-off closure having a collar flaring downwardly and outwardly from a terminal edge of a cap portion of the closure, the collar provided to shield a portion of a bottle with the closure applied thereon from contamination. At least one line of weakening is provided in the collar to enable tearing at least the collar for convenient removal of the closure from a bottle.

Abstract: A closure cap having a liner adhered to a cap shell by a plurality of coating layers. Prize markings are printed on one of the coating layers and are positioned between the coating layers. The peel resistance in the interface between the coating layers is less than that between the topmost coating layer and the liner to assure that the prize markings will be transferred to the liner when the liner is peeled from the cap shell. The liner includes a starting portion which adheres to the topmost coating layer only slightly to facilitate easy removal of the liner from the cap shell.

Abstract: Provided is tamper-indicating plastic bottle cap to be fitted to a bottle neck having a bead, which cap is comprised of (a) an inner stopper member having a skirt provided with an annular projection for engaging over the bottle bead and (b) an outer cap member having a skirt. Either the skirt of the inner stopper member or the skirt of the outer cap member has first and second annular recesses and the other has an annular projection to be received in the first and second recesses. The skirt of the inner stopper member is broader toward the lower terminal edge thereof so that the broadened portion forms a stopping shoulder on which the lower end of the skirt of the outer cap member is caught therein so as to avoid the risk of the outer cap member being inadvertently brought into a seal position relative to the inner stopper member during shipping and storage of the bottle cap.

Abstract: A tamper-proof closure includes a seal cap and a lock ring for securement to a container having a screw cap. The lock ring has a first portion integrally formed with the bottom of portion of the seal cap and a second portion which is breakably detachable from the seal cap. The second portion of the lock ring is secured to the seal cap by spaced severable attachments. The first and second portions are separated by recesses one of which receives a projection on the container. The seal cap is secured over the screw cap by lips which are formed at its bottom edge and which catch the bottom edge of the screw cap.

Abstract: A blank for forming a bottle cap is disclosed, the completed bottle cap having a tear tab cooperating with score lines extending across the top of the cap for manual removal of the cap from a bottle. Two score lines are provided which extend from the tear tab to the opposite side of the blank, the score lines being asymmetrical to facilitate the formation of a tear-off tab. The described arrangements of score lines serve to obtain an easy removal of the cap from a bottle after the tearing operation.

Abstract: The present bottle closing device is intended especially for a one time use, for example, in medication bottles. The closing device is constructed to function as a guaranteed seal and may enclose a sealing gasket or stopper received in an elastically yielding claw ring which has claws held engaged with a bottle mouth rim by a closing cap provided with a so-called rip-top or flip-top which is ripped away for opening the bottle and breaking the seal.

Abstract: A closure for a unit dose vial for oral administration of medication, comprising an elastomer stopper which seals the vial and affords a rim covering the lip of the vial, and a metal sealing ring crimped onto the vial, covering the stopper rim but exposing a self-venting self-sealing linear slit valve in the stopper, the sealing ring including an integral release tab allowing quick, convenient removal of both the ring and the stopper for oral administration of the vial contents.

Abstract: A tamperproof press-on, snap cap for closing a container having a neck defining the mouth opening. The container has an upper cap retaining bead and lower, enlarged annular ledge. The snap cap includes an enlarged end wall and a downwardly depending skirt inwardly of the end wall periphery which has an inwardly directed radial annular bead for cap retaining engagement with the container bead. A cylindrical tear sleeve depends downwardly from the peripheral edge of the end wall of the cap, is spaced radially outwardly from the skirt, is longer than the skirt and sized for encircling and snugly engaging the annular ledge. The tear sleeve has a peripherally weakened annular tear zone at the cap end wall juncture and includes an axial tear groove extending from the weakened tear zone to the lowered edge of the sleeve. Adjacent the tear groove is shortened section to enable grasping and tearing the sleeve.

Abstract: An easily openable container closure comprising (1) a shell of a unitary structure including a top and a cylindrical skirt, said top having an annular top surface portion leading to the upper end of the skirt and a pull ring connected to a part of the inner peripheral edge of the annular top surface portion through a linking piece, and the annular top surface portion and the skirt having a pair of breaking weakened lines formed along the phantom lines extending from both side edges of the linking piece, and (2) a sealing member positioned within the shell for closing an opening present in the top surface of the shell. The annular top surface portion of the shell at least includes a first annular portion extending inwardly from the upper end of the skirt and a second annular portion extending downwardly and inwardly in an inclined manner from the first annular portion.

Abstract: A closure for sales promotion comprising a closure shell having the indication of a prize offer on its inner bottom surface and a gasket bonded to its inner bottom surface, the gasket having a center panel portion held half-adhered or non-adhered to the inner bottom surface of the closure shell and a peripheral sealing portion firmly adhered to the inner bottom surface of the closure shell, the center panel portion being completely defined from the peripheral sealing portion by a breakable line so that the center panel portion can be stripped off from the inner bottom surface of the closure shell while leaving the peripheral sealing portion.

Abstract: A sales promoting-purpose closure comprising a closure shell having the indication of a prize offer on its inner bottom surface and a gasket peelably bonded to the inner bottom surface of the shell. The gasket either only partially adheres to the inner bottom surface of the closure shell at least at its center panel or not at all, and the center panel has a tear strip portion defined by a breakable line.

Abstract: A metal cap for crimping on the neck of a container has one or two tear lines of reduced strength about its skirt which define a tear-off strip. A perforation for initiating tearing extends across the width of the strip and at least one smaller perforation is also provided in the strip. A tear-off tab (plastic tape) engages both sides of the strip and is joined together through the perforations. The larger perforation is either U- or L-shaped, a straight slot or variations thereof. The portion of the tear line adjacent the larger perforation may be scored to facilitate initial rupture in the desired direction. One or more circumferential reinforcing ribs may be provided in the skirt on one or both sides of the tear-off strip. In addition to the full circumferential tear line, a partial tear line may extend between the larger perforation and a slot in the edge of the cap to provide an initially narrow tear-off strip, which enlarges to include the edge of the cap.

Abstract: A metal cap for crimping on the neck of a container has one or two tear lines of reduced strength about its skirt which define a tear-off strip. A perforation for initiating tearing extends across the width of the strip and at least one smaller perforation is also provided in the strip. A tear-off tab (plastic tape) engages both sides of the strip and is joined together through the perforations. The larger perforation is either U- or L-shaped, a straight slot or variations thereof. The portion of the tear line adjacent the larger perforation may be scored to facilitate initial rupture in the desired direction. One or more circumferential reinforcing ribs may be provided in the skirt on one or both sides of the tear-off strip. In addition to the full circumferential tear line, a partial tear line may extend between the larger perforation and a slot in the edge of the cap to provide an initially narrow tear-off strip, which enlarges to include the edge of the cap.

Abstract: An improved tear-off closure for a container is disclosed having a circular top end wall, a closure skirt depending from the top end wall, an annular rim projecting radially outwardly from the bottom of the closure skirt and an integral concentric pull ring around the annular rim. The pull ring comprises a curled bead having a radially inwardly open slot therein into which a terminal edge portion of the annular rim projects to secure the pull ring in a fixed position of the base of the closure skirt prior to sealing of the closure on a container. A method and tools for forming such a closure are also disclosed.

Abstract: An improved tear-off closure for a container comprising a top end wall, a depending closure skirt around the top end wall and a pull ring around the bottom edge of the closure skirt. The closure has a pair of score lines therein traversing the skirt and the top end wall to define a tear strip across the closure. The pull ring is integrally connected to the tear strip at the bottom of the closure skirt. A line of separation between the pull ring and the closure skirt extends from a location adjacent the score line on one side of the tear strip around the closure skirt to a location adjacent the score line on the other side of the tear strip. The curved terminal ends of the line of separation are spaced from the tear strip laterally of the score lines on both sides of the tear strip.

Abstract: A frangible sealing cap for a bottle neck comprises:A. a plastic cup having a top cover and a depending annular skirt, the cover and skirt having thin walls, the skirt being free of annularly outward bulge structure,B. a plastic pull tab integral with the skirt and depending to a level below the lowermost level of the skirt, andC. there being two weakening score lines extending into, but incompletely through the skirt from the outer surface thereof, said lines extending upwardly toward the top cover from points proximate the junctures of the skirt with opposite edges of the tab.

Abstract: A flexible cap is provided as a closure for a widemouthed jar of glass or plastic. Such jars are commonly used for the packaging of viscous materials such as peanut butter, mayonnaise, jams, jellies and the like. The jar mouth is commonly quite wide, of the order of 110 millimeters or more.

Abstract: A tear open bottle cap formed of lightweight sheet metal having a circular top panel surrounded by a cylindrical skirt connected thereto by a radiused juncture portion. An integrally formed pull member extends away from the skirt edge with a score line commencing at either side of the pull member extending upwardly across the cap skirt. The score lines diverge outwardly away from each other within the radiused juncture portion and continue part way about the periphery of the cap top panel in a circular path. The terminal portions of the score lines extend outwardly into the cap skirt at spaced positions opposite the pull member. An annular sealing gasket is disposed within said cap top so as to lie just radially inwardly of the circular scoring.

Abstract: It is common to dispense special waters in glass containers of a capacity of about 5 gallons. The neck of each bottle is sealed with a unique plastic cap which is readily displaced to permit dispensing of the bottle contents which can be readily replaced to seal water remaining in the bottle for further use.

Abstract: A tear-off convenience bottle cap formed of lightweight sheet metal having a circular top panel surrounded by a cylindrical skirt. An annular sealing gasket disposed within said cap at the juncture of the top and skirt. An integrally formed pull member extends away from the skirt edge with a score line commencing at either side of the pull member extending upwardly across the cap skirt. The score lines continue part way about the periphery of the cap top panel protected against exposure to the bottle contents by the annular sealing gasket and are then directed radially outwardly into the cap skirt opposite the pull member, thus minimizing the pull force required to dislodge the cap from the underlying bottle finish at the termination of the tearing action.

Abstract: A tamperproof screw cap for a container which may be locked in place on the container spout, including a lock-band surrounding the cap and having one-way teeth thereon engageable with one-way teeth surrounding the spout which permits the cap to be screwed into place but prevents the cap from being unscrewed until said lock-band is removed.

Abstract: A self-opening closure cap for containers. The cap has a hole at its central portion and a self-opening means integrally formed with a seal placed under the cap and protruding therefrom through the hole. In one embodiment the self-opening means and seal are injection molded of polyethylene or polypropylene. When a pulling force is exerted on the self-opening means by a finger, the core of the seal will be punctured so that the contents are removable through the hole without using any mechanical opener and without removing the whole cap.

Abstract: A bottle cap is disclosed having a tear tab cooperating with score lines extending across the top of the cap for manually removal of the cap from a bottle. The score lines are located slightly spaced from the peripheral edge of the top of the cap and arranged at least partly around the periphery of the cap. This arrangement of the score lines serves to obtain an easily removal of the cap from the bottle after the tearing operation and is moreover in combination with the sealing element effectively preventing any risk for corrosion along the score lines.

Abstract: A bottle cap is disclosed having a pair of spaced score lines extending across the top of the cap and across a peripheral depending skirt to the edge. A sealing element is bonded to the surface of the inside of the cap. The bonded interface between the sealing element and the cap extends across portions of each of the score lines away from a downwardly depending tear-off flap. The bonded interface serves to prevent tearing of the score lines when the cap is removed. The sealing element is undamaged when the cap is removed so that the cap may be reused.

Abstract: An overcap for receipt on a jar in surrounding relation to a threaded closure cap of the jar and which when mounted prevents tampering with the closure cap and unauthorized entry into the jar interior. The overcap includes an upper surface overlying the closure cap and a skirt depending circumferentially therefrom. The skirt is radially spaced from the closure cap substantially along its length so that the overcap is free for rotational movement relative to the closure cap and cannot be frictionally coupled to the closure cap to effect removal of the latter. The overcap is provided with a pull tab defined by lines of weakness in the upper surface and skirt so that a pulling force on the tab will fracture the overcap from the closure cap and permit authorized access to the cap and opening of the jar.

Abstract: This invention relates to a crown cap, and particularly, to an easy open type crown cap provided with an inclined tongue element and two non-intersecting score lines extending from two sides of said tongue element toward the internal side of the crown cap and being easily removed therefrom by hand without the need of using any auxiliary openers.

Abstract: A cap for a molded plastic container has a cover section and a seating section which are provided with a tear strip for obtaining drinking or pouring access to the contents of the container without removal of the cap. The cover section has a centrally raised portion and a portion which slopes downwardly and radially outward from the centrally raised portion and terminates in a circumferentially extending seating portion. The latter includes an outer, downwardly extending skirt which embraces the upper end of the container. Two parallel slots extend part way up from the edge of the skirt and terminate in a groove which extends to the edge of the cover section and then follows the surface of the cover section in a generally radial direction to form a tear strip having a continuous, wedge-shaped configuration. The two parallel slots form a tab for grasping the tear strip with the fingers.

Abstract: A sheet metal closure is provided which has a tear strip across its skirt and a pull ring below the bottom edge of the skirt and integrally connected to the tear strip to facilitate severance of the score lines which define the tear strip. The pull ring is in the form of a bead which is curled inwardly from the connection of the ring to the tear strip and is adapted to be cammed against the neck of the container below the connection to the tear strip so the end of the tear strip will be partially wrapped around the curled bead when the tab is lifted to initiate severance of the score lines.

Abstract: A bottle cap is disclosed having a tear tab cooperating with score lines extending across the top of the cap for manual removal of the cap from a bottle. The score lines are located slightly spaced from the peripheral edge of the top of the cap and arranged at least partly around the periphery of the cap. This arrangement of the score lines serves to obtain an easy removal of the cap from the bottle after the tearing operation and is moreover in combination with the sealing element effectively preventing any risk for corrosion along the score lines.