Bottles and jars – Closures – Cap type
Patent
1977-02-04
1978-02-07
Norton, Donald F.
Bottles and jars
Closures
Cap type
215DIG1, B65D 5300
Patent
active
040722449
ABSTRACT:
A linerless closure for a container having a neck portion terminating at its end in an annular rim defining the periphery of an open mouth, the annular rim including a substantially flat portion lying in a plane normal to the longitudinal axis of the neck and a primary sealing portion tapering downwardly from the flat portion. The closure includes a top panel with a cylindrical skirt depending from the periphery thereof and adapted to engage the neck of the container. A downwardly and outwardly depending annular sealing fin is provided on the inside of the top panel of the closure and is adapted to sealingly engage the primary sealing portion on the annular rim of the neck portion of the container. The linerless closure further includes an annular inclined stop portion formed integral therewith at the interior junction of the top panel and the depending skirt and which is adapted to stop the upward and outward deflection of the annular sealing fin upon application of the closure to the container to bias the sealing fin into sealing engagement with the primary sealing portion on the annular rim of the neck portion of the container.
REFERENCES:
patent: 3055526 (1962-09-01), Plunkett
patent: 3203571 (1965-08-01), Plunkett
patent: 3255907 (1966-06-01), Eddy
patent: 3255909 (1966-06-01), Miller
Holler E. J.
Norton Donald F.
Owens--Illinois, Inc.
Steger A. J.
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