Abstract: A two piece clamping ring and lever system for retaining removable lids to containers comprises a split circular ring. The ring first end includes outwardly extending receiving hooks. The second end of the ring includes pivot bosses comprising a pivot shaft and enlarged button. A lever with pivot shafts engages with the ring first end. When the lever is closed contact surfaces on an inwardly projecting transverse beam on the underside of the lever and outwardly projecting beams on the ring first end engage to relieve stresses on the lever pivot shafts and ring first end pivot receiving hooks. A second stress transfer relationship is engaged as an inwardly facing transverse beam extending between the sidewalls of the ring second end is slideably engaged into corresponding receiving channels outwardly facing from the ring first end thereby relieving stresses on the pivot bosses and corresponding longitudinally extending lever bearing surface.

Abstract: A two piece clamping ring and lever system for retaining removable lids to containers comprises a split circular ring. The ring first end includes outwardly extending receiving hooks. The second end of the ring includes pivot bosses comprising a pivot shaft and enlarged button. A lever with pivot shafts engages with the ring first end. When the lever is closed contact surfaces on an inwardly projecting transverse beam on the underside of the lever and outwardly projecting beams on the ring first end engage to relieve stresses on the lever pivot shafts and ring first end pivot receiving hooks. A second stress transfer relationship is engaged as an inwardly facing transverse beam extending between the sidewalls of the second end is slideably engaged into corresponding receiving channels outwardly facing from the ring first end thereby relieving stresses on the pivot bosses and corresponding longitudinally extending lever bearing surface.

Abstract: A lightweight metal protective closure for covering the threaded dispensing openings in steel shipping drums during the drum exterior painting process. The closure is formed as a shallow cup having a bottom wall surrounded by an upstanding sidewall. The sidewall is formed with a single embossed thread and terminates in a circumferentially extending radially fluted lip. The lip is contoured to closely overlie and protect the exposed top surfaces of the upstanding opening neck from deleterious paint coverage leaving the lower neck surfaces exposed.

Abstract: A nestable spout assembly for dispensing liquid products from cans and pails. A molded plastic spout in extended position has an enlarged flexible lower wall portion joined to a relatively rigid externally threaded upper wall portion. A peripheral sealing channel is disposed about the base of the lower wall portion for securing to a container wall opening neck by means of an overlying metal crimping ring. A tear out diaphragm is recessed within the spout upper wall portion above the spout thread and provided with an integrally molded ring pull for removal. A circumferentially enlarged plastic reclosing cap threadedly engages the spout upper wall portion and also interlockingly engages the metal crimping ring with the spout in nested position to close off the annular spout void against contamination. A separate generally cup shaped pouring vent is included in the spout assembly to facilitate smooth, surge free, pouring.

Abstract: A two piece closure assembly consisting of a metal tamperproof overcap and a plastic recloseable undercap. The metal overcap has a recessed center panel surrounded by a downwardly opening sealing channel. The plastic undercap has a similar configuration but with a slightly narrower sealing channel so as to loosely nest within the overcap in assembled position. The overcap is further provided with a diametrically extending tear strip defined by a pair of parallel score lines. A gripping ear extends from each end of the tear strip at the sealing channel outer edge. The gripping ears besides providing ready access for tearing and removal of the overcap intact are configured to hold the overseal and undercap in assembled position for application as a unit to a container opening.

Abstract: A nestable spout assembly for dispensing liquid products from cans and pails. A molded plastic spout in extended position has an enlarged flexible lower wall portion joined to a relatively rigid externally threaded upper wall portion. A peripheral sealing channel is disposed about the base of the lower wall portion for securing to a container wall opening neck by means of an overlying metal crimping ring. A tear out diaphragm is recessed within the upper end of the spout and is provided with an integrally molded ring pull for removal. A circumferentially enlarged plastic reclosing cap threadedly engages the spout upper wall portion and also interlockingly engages the metal crimping ring with the spout in nested position to close off the annular spout void against contamination. An axially extending support member is disposed within the space between the upper surface of the diaphragm and the under surface of the reclosing 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 nestable pouring spout assembly for dispensing liquid products from cans and pails. A molded plastic spout has in extended pouring position an enlarged flexible lower wall portion joined to a relatively rigid externally threaded upper wall portion closed off by an imperforate sealing diaphragm. A peripheral sealing channel is disposed about the base of the lower wall portion for securing to a container wall opening neck by means of an overlying metal crimping ring. The upper wall portion receives an internally threaded reclosing cap which is cooperatively engaged within the confines of the crimping ring when the spout is in stored position with the upper wall concentrically nested within the lower wall. Gripping bails integrally formed on the reclosing cap facilitate lifting the spout to raised pouring position by reversing the lower wall portion with respect to the sealing channel from a downwardly extending position to an upwardly extending position.

Abstract: A method and apparatus for converting conventional bottle crowning machines for the proper application of lighweight metal tear off closures. The standard crowner mechanism is detached from the free end of a work imparting shaft mounted for vertical reciprocation along its longitudinal axis. A tear off closure applying head is installed in place of the crowner mechanism with a self-contained compensating spring unit interposed axially between the shaft end and the applying head. The converted machine is capable of uniformly applying tear off closures with adequate compensation for normal dimensional variations in the bottles being capped.

Abstract: A one piece pouring spout is inserted within a preformed can opening and fully seated for sealing against leakage and pilfering. In use, the spout is raised, to extended pouring position and rigidly retained within the can opening. The elongated tubular spout is integrally molded of synthetic plastic having its upper end closed off with a removeable sealing diaphragm and surrounded with a finger gripping ring. Upper and lower sealing surfaces are formed on the spout exterior to tightly engage the can opening in fully seated respective raised and lowered positions.

Abstract: A frangible closure for containers consists of a molded plastic closure sealing member and a metal crimping ring. The closure sealing member has a central tear out membrane surrounded by a sealing annulus with an annular weakened tearing zone interposed therebetween. The tear out membrane has a short cylindrical skirt depending from its lower surface and an enlarged ring pull projecting from its upper surface. The metal crimping ring overlies the sealing annulus for tight securement to a container wall opening neck. An upward force applied to the ring pull tears away the center membrane which can be then employed to reclose the opening after partial decanting of the container.

Abstract: A liquid tight closure for containers comprising a threaded neck secured about a suitably formed opening in a container wall section. An annular sealing gasket is formed in situ on the exposed surface of the terminal thread area remote from the neck mouth. A closing member threadedly engages the container opening neck with the starting thread area of the closing member in sealing engagement with the neck gasket thereby sealing off the thread engagement upon full seating of the closing member.

Abstract: A threaded metal closure plug and closure combination for liquid storage containers, such plug being specially formed for receiving a hand applied torque force. The plug is cup shaped with a bottom wall surrounded by an upstanding cylindrical sidewall, the lower major portion of which is threadedly engaged within an upstanding container opening neck. The upper end of the plug sidewall forms a seat for a resilient sealing gasket and that end terminates in a circumferential outwardly extending lip having a peripheral free edge. Portions of that free edge are deformed downwardly at circumferentially spaced intervals to form radially outwardly facing hand gripping surfaces for convenient and effective hand rotation of the plug.

Abstract: A method of sensing the presence and proper positioning of an annular sealing gasket encircling the neck of a closure flange employed in the fabrication of steel shipping drums. The closure flange consists of an upstanding internally threaded cylindrical neck surrounded by a laterally extending noncircular base at its lower end. An annular, resilient sealing gasket is placed over the flange neck so as to seat above the flange base. The gasket is sensed for presence and proper positioning as the flange moves along a predetermined path with automatic ejection of improperly gasketed flanges.

Abstract: A retractable pouring spout closure for dispensing liquid products from containers in a safe and controlled manner. The closure consists of a plastic nozzle with integrally molded captive cap for friction fit engagement within a container wall opening. A tearing diaphragm seals off the upper end of the nozzle and has a cylindrical wall depending from its lower surface within the confines of the nozzle throat. A retractable pouring spout has its upper end tightly surrounding the depending cylinderical wall in stored position so as to require breaking of the diaphragm seal prior to unplugging the spout.

Abstract: A closure for light gage steel drums made up of an internally threaded closure flange mechanically secured within a suitably formed container wall opening. The flange is formed with a cylindrical neck internally threaded throughout its lower extent and surrounded exteriorly by a polygonally shaped base. A resilient sealing gasket tightly surrounds the flange neck at its juncture with the flange base. A perforated drum stock section is formed to overlie and closely surround the flange neck and base in an improved torque-resisting manner with the upper end of the flange neck beaded outwardly over the surrounding drum stock. The closure is completed with the threaded engagement of a closure plug and application of an overlying tamper-resisting drum seal.

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: 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 closure for light gage steel drums made up of an internally threaded closure flange mechanically secured within a suitably formed container wall opening. The flange is formed with a cylindrical neck internally threaded throughout its lower extent and surrounded exteriorly by a polygonally shaped base. A resilient sealing gasket tightly surrounds the flange neck at its juncture with the flange base. A perforated drum stock section is formed to overlie and closely surround the flange neck and base in an improved torque-resisting manner with the upper end of the flange neck beaded outwardly over the surrounding drum stock. The closure is completed with the threaded engagement of a closure plug and application of an overlying tamper-resisting drum seal.