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:
Aug. 22, 1995
Filed:
Jul. 25, 1994
Applicant:
Inventors:
John F Priest, Tomball, TX (US);
Mathew G Schmidt, Houston, TX (US);
Assignee:
Western Atlas International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310334 ; 310328 ;
Abstract
The invention is an apparatus for increasing the signal amplitude of a piezoelectric acoustic transducer. A piezoelectric actuator is affixed to an arched spring which changes arched height in response to change in length of the actuator. The spring drives a rigid surface which can be directly coupled to a material which is to be acoustically energized. In a particular embodiment of the invention, the rigid surface is coupled to an hydraulic transmission. The output of the transmission is coupled to the material which is to be acoustically energized.