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. 23, 2011
Filed:
Jul. 29, 2009
Applicants:
Jérôme Daout, Rolle, CH;
Richard Bossart, Lausanne, CH;
Inventors:
Jérôme Daout, Rolle, CH;
Richard Bossart, Lausanne, CH;
Assignee:
Rolex S.A., Geneva, CH;
Primary Examiner:
Int. Cl.
CPC ...
G04B 17/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Hairspring for a balance wheel/hairspring resonator, comprising n blades, where n≧2, which are fastened via at least one of their respective homologous ends and wound in spirals with an angular offset capable of neutralizing the lateral forces liable to be exerted on its central arbor when one of the ends of each blade is moved angularly around said central arbor relative to its other end.