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:
Aug. 16, 2011
Filed:
Jun. 11, 2009
Marco Rochat, Le Brassus, CH;
Edmond Capt, Le Brassus, CH;
Cédric Reymond, Le Sentier, CH;
Blancpain S.A., Le Brassus, CH;
Abstract
In a timepiece with a striking mechanism, for example a minute repeater watch, in order to prevent the control stem () inadvertently setting the time during operation of the striking work and causing damage, an uncoupling device is inserted in the time-setting train (), and is controlled via a mobile part of the striking mechanism. The uncoupling device includes an intermediate motion wheel () that can be moved, for example axially, from a rest position in which it is meshed with the castle wheel (). Said mobile part of the striking mechanism is preferably the strike barrel arbour (), carrying a rotating cam () with a spiral profile. At the start of actuation of the striking mechanism, the cam pushes a lifting lever (), which raises a strip () controlling the vertical movement of the intermediate motion wheel (). This interrupts the kinematic connection in the motion work train, such that the stem () can rotate the castle wheel () without producing any effect and without encountering any resistance.