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:
May. 02, 1989
Filed:
Dec. 28, 1987
Applicant:
Inventors:
Kiyoshi Inoue, Kawasaki, JP;
Masakazu Nakazato, Sagamihara, JP;
Assignee:
Kayaba Industry Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B / ; F01B / ;
U.S. Cl.
CPC ...
92 122 ; 91505 ; 74 60 ; 74839 ;
Abstract
A cam plate type axial piston pump capable of operating a control lever operatively connected to a cam plate to control an inclination angle of the cam plate and control its discharge depending on the inclination angle. A piston pump of such type exhibits self-return force toward a position nearer its neutral point when it reaches a position near the neutral point. The pump of the present invention is so constructed that a thrust plate provided on a cam plate is pivotally moved in order to positively utilize the self-return force.