B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
206/31
B65D 41/42 (2006.01) B65D 41/44 (2006.01)
Patent
CA 1185205
ABSTRACT A bottle closure cap stampable from sheet metal as a shallow cylindrical inverted dish having a rounded juncture, foming a fillet, between its crown and its cylindrical wall; a layer of elastomeric material being disposed in the fillet and engageable with the axial end of the bottle when the cap is attached. A generally radially extending rip tab is integral with the cylindrical wall at the bottom edge thereof and is adapted to tear through the cylindrical wall by a generally circumferential pull of the user to gain access to the container. A rip line is provided commencing at a corner defined by the bottom edge of the cylindrical wall where it meets the rip tab. The rip line extends at a shallow angle across the cylindrical wall to a level which is spaced below the crown, continuing parallel to the crown circumferentially about half-way around the closure cap. The installed closure cap can relieve excessive interior pressure and reseal itself, the closure cap pressure in the container being relievable gradually while the rip tab is being pulled to gain access to the container. Installation of the closure cap requires much less axial pressure than conventionally required.
400882
Borden Ladner Gervais Llp
Prohaska Helmut
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