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:
Dec. 10, 1991
Filed:
Jul. 18, 1990
Applicant:
Inventor:
Claude Dessaux, La Clayette, FR;
Assignee:
Potain, Ecully, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C / ; H02K / ;
U.S. Cl.
CPC ...
294 8215 ; 318161 ;
Abstract
The device comprises a pulley block body (11) having several lines (25, 26, 27, 28) and several pulleys (12, 13) over which passes a lifting cable (4) forming a block and tackle (15), a grappling element (15) mounted to turn around a vertical shaft (14) and accommodating a hook (9), and electric motorization (16) to drive grappling element (15) in rotation. Pulley (13), over which the cable in the block and tackle passes, serves to drive an electric generator (35) which charges accumulators (36), the latter supplying the electricity needed for motorization (16). The device is applicable to turret slewing cranes and other cable lifting mechanisms.