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. 24, 2014
Filed:
Jun. 20, 2011
Nakis Karapatis, Premier, CH;
Pierre Cusin, Villars-Burquin, CH;
Nakis Karapatis, Premier, CH;
Pierre Cusin, Villars-Burquin, CH;
Montres Breguet SA, L'Abbaye, CH;
Abstract
A method of fabricating a balance spring assembly () in silicon including a hairspring () made in a wafer of given crystalline orientation, in a plane (P). The volume of the assembly () is broken down into sub-components, inscribed in parallelepiped prisms, in secant pairs, at the junction areas, perpendicular to each other, each made in a wafer selected for the thickness or crystalline orientation thereof. An outer curve () is made in an orthogonal plane to that of the hairspring () joining it directly to a point in space, the projection of which into the plane (P) is located external to the hairspring (). The sub-components are assembled at the junction areas.