The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 1991
Filed:
Sep. 01, 1989
Applicant:
Inventor:
Charles S Ochs, Lancaster, OH (US);
Assignee:
Anchor Hocking Corporation, Lancaster, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
215260 ; 215276 ; 220366 ;
Abstract
A composite closure for a container vents internal gas pressure in excess of a pre-established maximum. An insert disk fits inside an overhanging top lip of the closure. The undersurface of the top lip is recessed to present a chamber into which excess gas pressure beneath the cover can deflect the disk and thereby provide a vent under the disk. A stop on a small area of the undersurface of the top lip positively abuts the disk to prevent blocking the chamber if the closure is overtightened.