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. 24, 1976
Filed:
Mar. 05, 1974
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; B66D / ;
U.S. Cl.
CPC ...
192 / ; 192 / ; 192 8718 ; 7447 / ; 74360 ; 2541 / ; 251296 ;
Abstract
An operating device for a double drum winch that has a hydraulically operated clutch, a brake and a hydraulic pressure variable control valve, and a single control lever connected to the hydraulic pressure variable control vavle to enable the operation of a hook and boom by one control lever so as to simplify the function and uses of the winch.