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:
Jun. 28, 1994
Filed:
Jun. 09, 1993
Gerard Freneix, St. Sebastien, FR;
ACB, Paris, FR;
Abstract
A load-hoisting system comprising a motor and gear box unit having the parallel outlet gears. Each outlet gear drives a hoisting device connected to the load by a cable, such a device comprising a toothed disk meshing with one of the two outlet gears, the toothed disk driving a winch drum via a friction clutch comprising an intermediate clutch disk, the cable being attached to and wound on the drum, the intermediate disk including retaining catches preventing it from rotating in a direction corresponding to lowering the load, the drum being fixed to a central shaft whose rotation in the direction corresponding to lowering the load ensures that the clutch is engaged. The central shaft is synchronized in rotation with the central shaft of the other hoisting device by means of a plate coupling and a coupling disk provided with tenons or grooves that are orthogonal, the two central shafts being supported by a fixed frame.