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. 13, 1976
Filed:
Oct. 02, 1974
Applicant:
Inventor:
Louis E Martin, Senlis, FR;
Assignee:
Societe Anonyme: Poclain, Le Plessis Belleville, FR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
91485 ; 91491 ;
Abstract
In a pump or motor having a plurality of radial pistons adapted to perform a plurality of strokes per revolution, a stator, a rotor and a fluid-distributor slide valve fast with the stator and having a radially extending plane face opposite a radially extending plane face of said rotor, said slide valve is provided in a chamber which communicates with the interface between said faces and, by a pressure-maintaining device, with a substantially unpressurised enclosure such that the effect on said slide valve of the pressure of fluid in said chamber will substantially balance the effect of pressure of fluid acting on said interface between said faces.