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:
Nov. 11, 1980
Filed:
Dec. 03, 1979
Applicant:
Inventor:
Bruce M Cox, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417402 ; 403287 ; 92 605 ; 92171 ;
Abstract
An improved differential pressure hydraulic pressure convertor whose ratio of output pressure to input pressure may be easily varied comprising a valve housing, a pump housing having a cylindrical bore therethrough, a power cylinder including a differential piston located between the valve housing and the pump housing, a piston assembly detachably secured to the differential piston of the power assembly and, optionally, a sleeve installed in the cylindrical bore in the pump housing slidably receiving the piston of the piston assembly.