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:
Sep. 19, 1978
Filed:
Jun. 27, 1977
Applicant:
Inventors:
Herbert Ernyei, Paris, FR;
Etienne Langlois, Paris, FR;
Assignee:
Societe Telegraphiques et Telephoniques, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73579 ;
Abstract
The resonance frequency of rod shaped mechanical resonators with a high quality factor such as used in electromechanical filters is obtained by shock exciting the resonator into vibration introduced into a solenoid collecting a voltage induced by said vibration across the solenoid terminals. Said shock is either mechanical or magnetic.