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:
Jun. 01, 1993
Filed:
Mar. 12, 1992
Applicant:
Inventor:
Spiros G Raftis, Pittsburgh, PA (US);
Assignee:
Red Valve Company, Inc., Carnegie, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137847 ; 1375135 ;
Abstract
A pressure relief valve has coil springs embedded within valve lips for constantly urging the lips closed. The internal springs resist environmental corrosion, and eliminate multi-part complex valve actuators.
Raftis, Spiros. (1993). Pressure relief valve (U.S. Patent No. 5215123). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5215123
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile