Bottles and jars – Closures – Frangible member or portion
Patent
1987-06-19
1988-09-13
Norton, Donald F.
Bottles and jars
Closures
Frangible member or portion
220278, B65D 4120
Patent
active
047703059
ABSTRACT:
A bottle cap which comprises an edge, a crown, a convex top on the crown, a cone at the interior center of the convex top, and a projection on the edge. The bottle cap is constructed in such way that after the cap is put on the mouth of the bottle, there is a clearance between the apex of the projection and an aluminum foil covering the mouth of the bottle. When the convex top is depressed with the thumb, the cone is lowered to pierce the aluminum foil, while the cap is opened by pushing the projection with the index finger. The bottle cap eliminates the need to pierce aluminum foil with a finger or other object. Accordingly, the liquids in the bottle will not be contaminated by the finger or other object before drinking. This meets economical, sanitary and easy-to-open requirements.
REFERENCES:
patent: 2361507 (1944-10-01), Sonnenberg
patent: 3074592 (1963-01-01), Stocking
patent: 3478913 (1969-11-01), Kemp
patent: 3931905 (1976-01-01), Shumway et al.
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