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:
Feb. 20, 1996
Filed:
Jul. 20, 1994
Applicant:
Inventor:
Bertrand Nogarede, Toulouse, FR;
Assignee:
Crouzet Automatismes S.A., Valence, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310323 ; 3103 / ; 310317 ;
Abstract
A motor includes two parts that are mobile one with respect to the other and have facing surfaces contacting each other. Progressive surface acoustic waves of the same direction are produced in each facing surface of each part. The relative speed or position of the parts is adjusted by acting on the relative frequency or phase of the progressive waves.