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:
Apr. 04, 1995
Filed:
Aug. 06, 1993
Applicant:
Inventors:
John W Duffy, Tama, IA (US);
Steven D Kehoe, Melbourne, IA (US);
Gary L Scott, Marshalltown, IA (US);
William J Bonzer, Marshalltown, IA (US);
Assignee:
Fisher Controls International, Inc., Clayton, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
13750536 ; 137505 ; 13750546 ; 1375133 ;
Abstract
A stabilizer for fluid pressure regulators enhancing regulator stability without affecting the regulator capacity. A stabilizer cartridge with a flexible flapper element has three flapper apertures symmetrically located around the flapper outer perimeter. Each aperture is centered within a window of the stabilizer. Means are provided to mount the stabilizer in proper location and orientation of the apertures within the regulator lower casing throat to sense downstream pressure without affecting regulator capacity.