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. 30, 2002
Filed:
Dec. 13, 2000
Kurt Schulthess, Balm b. Günsberg, CH;
Thomas Lüthi, Grenchen, CH;
Eta SA Fabriques d'Ebauches, Grenchen, CH;
Abstract
Encapsulated piezoelectric resonator including on the one hand a central plate ( ) made of a piezoelectric material cut to form a frame ( ) and a central resonant element ( ) connected to said frame ( ), the top and bottom faces having a metal coating, on the other hand bottom ( ) and top ( ) covers, each being formed by a spacing frame ( ) made of metal or a metal alloy and a closing plate ( ), characterised in that at least one of the elements ( ) forming the covers ( ) is electrically connected to the frame ( ) of the central plate ( ) and has an extension ( ) bent into a Z shape to bring its distal portion ( ) in line with a covering plate ( ) and to form electrical and mechanical connection means situated in a same plane.