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:
Jan. 30, 2001
Filed:
Jun. 24, 1999
Applicant:
Inventors:
Katsuki Yamagata, Akashi, JP;
Masato Tanji, Akashi, JP;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66D 5/26 ;
U.S. Cl.
CPC ...
B66D 5/26 ;
Abstract
A hydraulic winch in which a piston rod of a brake cylinder constituting a hydraulic winch is connected in a state capable of being moved only in a range fixedly controlled in axial and diametral directions relative to a pressure plate to control an axial movement of the piston alone when a mode is switched and not to exert an unreasonable load to the connected portion. Thereby, it is possible to prevent an overstroke of the piston of the brake cylinder and to improve the switching responsiveness when switched to the brake release state again.