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:
Dec. 31, 1991
Filed:
Mar. 08, 1991
Applicant:
Inventor:
David L Lyon, Buffalo, MN (US);
Assignee:
Cherne Industries Incorporated, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 93 ; 137540 ; 13754321 ;
Abstract
An adjustable pressure relief valve for use in a fluid pressurized system. The pressure relief valve has a valve body with a passage that terminates at inlet and outlet ends. The passage includes a valve chamber, a valve seat at the inlet end, and a valve base adjustably secured proximate the outlet end. A valve head sealingly engages the valve seat by a spring that is interposed between the valve head and the valve base. The valve body is constructed and arranged for use as an end cap in a flexible pressurized system, such as a pneumatic pipeline plug.