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:
Aug. 08, 1978
Filed:
Feb. 10, 1977
Applicant:
Inventors:
Kozo Ono, Tokyo, JP;
Taketoshi Kato, Funabashi, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
91491 ;
Abstract
In radial piston type multi-stroke hydraulic pump or motor having undulating cam surface, said cam surface is constructed based upon an asymmetrical trapezoid torque curve (of torque-phase diagram), thereby preventing the abrasive wear of the cam surface and faulty operations of valve means due to shorter valve switching time and also maintaining the torque constant.
Ono, Kozo. (1978). Radial piston type multi-stroke hydraulic pump or motor (U.S. Patent No. 4104956). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4104956
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile