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:
Dec. 27, 1977
Filed:
Aug. 04, 1975
Jean Hermann, Neuchatel, CH;
Hubert Choffat, St. Blaise, CH;
Centre Electronique Horloger S.A., Neuchatel, CH;
Abstract
A piezoelectric resonator, particularly for electronic wrist watches, comprises an elongated piezoelectric crystal rod that oscillates in length-extension. Opposite faces of the rod are partially metallized; and short wires are secured tangentially to these metallized surfaces midway of the length of the rod. The wires extend perpendicular to the length of the rod and are secured at their other ends to metallized opposite surfaces of an elongated ceramic support which is parallel to and of about the same size and shape as the rod. The support also has metallized end faces which are secured to the inner ends of support wires that pass through a casing in sealed relationship and mount the support and rod in spaced relation from the casing.