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:
Jul. 02, 2019
Filed:
Nov. 18, 2016
Method for fabrication of a balance spring of a predetermined stiffness by local removal of material
Applicant:
Csem Centre Suisse D'electronique ET DE Microtechnique Sa—recherche ET Developpement, Neuchatel, CH;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G04B 17/06 (2006.01); F16F 1/10 (2006.01); G04D 7/08 (2006.01); G04D 7/10 (2006.01); B81C 1/00 (2006.01); G04B 17/22 (2006.01);
U.S. Cl.
CPC ...
G04B 17/066 (2013.01); B81C 1/00 (2013.01); F16F 1/10 (2013.01); G04B 17/22 (2013.01); G04D 7/082 (2013.01); G04D 7/10 (2013.01);
Abstract
The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions of increased thickness, determining the stiffness of the balance spring formed in step a) in order to remove, locally, a volume of material, in order to obtain the balance spring having the dimensions necessary for said predetermined stiffness.