Bottles and jars – Closures – Cap type
Patent
1993-07-14
1995-10-31
Shoap, Allan N.
Bottles and jars
Closures
Cap type
215341, 215349, B65D 5306
Patent
active
054621879
ABSTRACT:
A plastic beverage closure comprising a base wall, a peripheral skirt and a plurality of threads on the inner surface of the skirt for engagement with the threads of a container which may be made of glass or plastic. The plastic closure includes a compression molded seal extending about the periphery of the inner surface of the base wall and the juncture of the base wall to the peripheral skirt. The closure includes a central axially thickened portion; a channel surrounding the thickened portion and extending radially to an annular radially thickened portion on the skirt at the juncture with the base wall. A concave surface extends from the base of the channel and merges with the surface of the annular portion. A compression molded liner is provided on the thickened portion, channel and concave surface of the closure and defines a planar sealing surface of contact with the end surface of the finish of a container and an arcuate surface for engaging the arcuate surface of a container. In other forms, the closure can be used as a closure for non-beverage products.
REFERENCES:
patent: 4407422 (1983-10-01), Wilde et al.
patent: 4664280 (1987-05-01), Whitney et al.
patent: 4721221 (1988-01-01), Barriac
patent: 5265747 (1993-11-01), Gregory et al.
Burzynski Dennis J.
Gregory James L.
Rote Bruce J.
Sprowl Frank L.
Hylton Robin A.
Owens-Illinois Closure Inc.
Shoap Allan N.
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