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:
Oct. 20, 1987
Filed:
Jan. 14, 1987
Applicant:
Inventors:
Harry I Ringermacher, West Hartford, CT (US);
Richard S Williams, Coventry, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310334 ; 310327 ; 310336 ; 310365 ; 310369 ; 369144 ;
Abstract
An acoustic transducer (10) with a pointed piezoelectric element (11) mounted on an electrically conductive damping mass (12), having a conductive tip (33), the damping mass (12) and conductive tip (33) being electrically connected to opposite terminals in a coaxial line (14). The conductive tip (33) has a convex wear member (35) for contact with a surface to be measured. In one version, the tip (33) is in contact with a flexible conductive sheet (17') for environmental protection.