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. 04, 2009
Filed:
Oct. 06, 2006
Robert Alain Greubel, Suisse, CH;
Stephen Edward Methuen Forsey, Suisse, CH;
Robert Alain Greubel, Suisse, CH;
Stephen Edward Methuen Forsey, Suisse, CH;
Tiffany & Co. Watch Center AG, Zurich, CH;
Abstract
A timepiece movement movement comprises a casing having a mechanical energy source, a work train driven by the energy source, a fixed wheel mounted on the casing, and a tourbillion comprising a cage which bears a balance wheel, an escape mobile provided with a pinion engaging with the fixed wheel, and a cage wheel rotationally joined to the cage and provided on its periphery with a toothing engaging with the work train. The casing of this movement is constituted, in its part occupied by the tourbillion, by a transparent material. In addition, the cage wheel comprises a transparent-material platelet, which extends radially beyond the other constituents of the tourbillion.