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:
Mar. 17, 1981
Filed:
Jan. 15, 1979
Applicant:
Inventor:
Raymond J Besson, Besancon, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H / ; H03H / ; H01P / ;
U.S. Cl.
CPC ...
333187 ; 310371 ; 333222 ; 333227 ;
Abstract
A piezoelectric resonator comprises a crystal having an outer peripheral portion connected to a central portion by an intermediate zone which is short in the radial direction, is hollowed out over its major part and has at least two connector bridges between the outer and central portions. Electrodes are arranged facing one of the main portions of the crystal which then forms the vibrating portion of the resonator. The non-vibrating main portion serves as a support for the crystal. The surfaces of the connector bridges are continuous with the corresponding surfaces of the vibrating portion.