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. 04, 2019
Filed:
Oct. 11, 2012
Applicant:
The Swatch Group Research and Development Ltd, Marin, CH;
Inventors:
Assignee:
The Swatch Group Research and Development Ltd, Marin, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 3/02 (2006.01); H03H 9/02 (2006.01); H03H 9/24 (2006.01); G04B 17/22 (2006.01); G04B 17/24 (2006.01); H03H 3/007 (2006.01);
U.S. Cl.
CPC ...
G04B 17/22 (2013.01); G04B 17/227 (2013.01); G04B 17/24 (2013.01); H03H 3/0076 (2013.01); H03H 9/02448 (2013.01); H03H 9/2468 (2013.01); H03H 2003/027 (2013.01);
Abstract
A temperature-compensated resonator including a body used in deformation, and a core of the body is formed by a material that is one of glass, ceramic glass, technical ceramic, and metallic glass. At least one part of the body includes a coating whose Young's modulus variation with temperature is of an opposite sign to that of the material used for the core, so that at least a first order frequency variation with temperature of the resonator is substantially zero.