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. 07, 2007
Filed:
Nov. 08, 2004
Applicants:
Silvio Dalla Piazza, St-Imier, CH;
Thomas Lüthi, Grenchen, CH;
Bruno Studer, Riedholz, CH;
Inventors:
Assignee:
ETA SA Manufacture Horlogere Suisse, Grenchen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/215 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a piezoelectric resonator (), intended to be packaged in a case, including a base () formed of a first fixing zone (), a second central mechanical uncoupling zone () and a third zone () opposite to the first fixing zone. At least two vibrating arms () extend from said third zone, on each of which at least one groove (--) is formed on at least one of the top or bottom faces of the arms. The resonator is characterised in that the base is provided with a hole () through the second central mechanical uncoupling zone.