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:
Feb. 07, 1978
Filed:
May. 24, 1976
Applicant:
Inventor:
Georges J Kaiser, Chenee, BE;
Assignee:
Fabrique Nationale Herstal S.A., Herstal-lez-Liege, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417269 ;
Abstract
The invention pertains to improvements to axial piston pumps of the type comprising, in combination, at least a plurality of annularilly distributed pistons housed in cylinders of a fixed block and in permanent contact with an inclined plate fixed to a pump shaft, an annular rotatable valve mounted on an eccentric fixed to said shaft, and means ensuring an axial hydrostatical compensation, characterized in that said means comprise, for each piston housing, a pocket provided in said block and an axially movable bobbin housed in said pocket, said pocket and bobbins facing an annular flange carried by the shaft of the pump.