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:
Jul. 14, 1992
Filed:
Nov. 13, 1990
Applicant:
Inventor:
Stephen J Stapleton, Upland, CA (US);
Assignee:
PneuDraulics, Inc., Rancho Cucamonga, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
1375143 ; 13754315 ;
Abstract
A valve having a valve poppet which is positioned by the opposing forces of a spring and inlet fluid pressure, and a dashpot located out of the path of fluid flow through the valve for damping movement of the poppet during rapid changes in fluid pressure without obstructing flow through the valve. The disclosed valve is a hydraulic pressure relief valve having a valve seat which is movable to aid alignment of the poppet and seat.