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. 12, 1993
Filed:
Oct. 11, 1991
Applicant:
Inventor:
Cyril Vuilleumier, Bienne, CH;
Assignee:
Eta SA Fabriques d'Ebauches, Granges, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B / ;
U.S. Cl.
CPC ...
368322 ; 368323 ; 368184 ; 368220 ; 368223 ;
Abstract
This invention concerns a braking arrangement for a gear wheel. The purpose of the invention is to brake the last wheel in a gear train in order to avoid the latter rotating through unequal angular steps. Such purpose is achieved with the help of an element forming a brake (1) fixed onto a first wheel set (2) of a gear train in a manner to be driven in rotation by the latter, such element (1) exhibiting a friction surface (39) at its periphery brought to bear elastically onto a second wheel set (6) meshing with the first so as to brake such second wheel set (6). The invention is more especially applied to horological and chronograph gearing.