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:
Oct. 15, 1991
Filed:
Jun. 05, 1990
Applicant:
Inventors:
Assignee:
Kayaba Industry Co. Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440 61 ; 1141 / ; 114150 ; 180 791 ; 440 60 ;
Abstract
A power steering system for a boat which is capable of accurately detecting steering torque of a steering wheel, to thereby generate appropriate assistance force corresponding to the steering torque. Rotation of the steering wheel causes pressure to be produced in one of cylinder chambers of a cylinder mechanism, so that steering torque of the steering wheel may be detected depending upon a difference in pressure between cylinder chambers, to thereby permit a drive motor to generate assistance force corresponding to the detected steering torque.