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. 07, 1999
Filed:
May. 09, 1997
Applicant:
Inventor:
J Michael Goodson, Skillman, NJ (US);
Assignee:
Crest Ultrasonics Corp., Trenton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310325 ; 310328 ; 310334 ;
Abstract
An ultrasonic transducer for generating and transmitting ultrasonic wave energy of a predetermined frequency to the surface of an object. The head mass and the tail mass are made from ceramic materials such as silicon carbide or alumina. In a particularly preferred embodiment, the transducer stack includes a resonance enhancing disc also made from ceramic material.