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:
May. 06, 1980
Filed:
Jun. 13, 1978
Applicant:
Inventor:
John N Troxell, Jr, Houston, TX (US);
Assignee:
Cameron Iron Works, Inc., Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137531 ; 137530 ; 251337 ;
Abstract
There is disclosed a pressure relief valve having a part which is movable to a first position for returning the closure member thereof to closed position, and thus resetting the valve, automatically in response to a predetermined low pressure level of fluid within the flowway, and to a second position which permits the closure member to move to open position automatically in response to a pressure level of the fluid to be contained which is less than that at which the valve is set to open.