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:
Jan. 16, 1979
Filed:
Feb. 10, 1978
Applicant:
Inventors:
Assignee:
HAG Aktiengesellschaft, Bremen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; F16K / ;
U.S. Cl.
CPC ...
229 625 ; 137251 ; 220205 ; 220374 ; 229D / ; 426118 ;
Abstract
A pressure relief valve for packages in which the valve element comprises a liquid impregnated porous element covering outlet openings in the package, with the liquid layer in the porous element being torn open by package contents pressures in excess of a predetermined value to permit gas outflow from the package.