Bottles and jars – Closures – Cap type
Patent
1979-10-24
1982-01-05
Norton, Donald F.
Bottles and jars
Closures
Cap type
215DIG1, B65D 5300
Patent
active
043089658
ABSTRACT:
A unitary cap of two dissimilar materials for sealing containers such as bottles or jars comprising a rigid outer closure member and a substantially resilient inner sealing member formed together as a unitary cap wherein the substantially rigid outer closure member includes a top wall and a depending annular side wall which extends over and is adapted to be secured to the neck of a container, serrations are provided on the exterior surface of the substantially rigid outer closure member for gripping purposes, and a reinforcement shoulder is located on the outer perimeter of the depending annular side wall adjacent the lower edge thereof to prevent excessive cap expansion upon application to a container and the substantially resilient inner closure member includes a base sealing element bonded or anchored to the substantially rigid closure member disposed to engage the inner and outer rim edges and/or top surface of the container to which the unitary cap is applied.
REFERENCES:
patent: 1910913 (1933-05-01), Conner
patent: 2849141 (1958-08-01), Abbiati
patent: 3189209 (1965-06-01), Owens
patent: 3215297 (1965-11-01), Acton
patent: 3458077 (1969-07-01), Ryan
patent: 3462034 (1969-08-01), Friedberg
patent: 4143785 (1979-03-01), Ferrell
Fisher, III Arthur W.
Norton Donald F.
Sun Coast Plastic Closures, Inc.
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