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:
Mar. 01, 1983
Filed:
Feb. 23, 1981
Applicant:
Inventor:
Richard E Widdowson, Dayton, OH (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F15D / ;
U.S. Cl.
CPC ...
138 46 ; 137503 ; 62210 ; 138 45 ;
Abstract
A two-stage flow restrictor valve assembly is disclosed that is adapted to be inserted in a fluid line to reduce the flow therethrough in two stages. The valve assembly is compactly arranged and comprises a minimum of parts including a valve body, a flow restrictor tube, a power rod, a movable valve assembly operated by the power rod against the spring and a single O-ring for sealing.