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:
May. 03, 1983
Filed:
Apr. 27, 1981
Casmir R Trzaskos, Amsterdam, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A high frequency ultrasonic transducer is improved by fabricating the tungsten-polyvinyl chloride composite, which backs the elements, in a specific manner. Small particle size tungsten powder and PVC powder are placed into a high pressure die. Standard processing of the powder mixture includes degasing followed by heating and compressing. To maximize the acoustic attenuation, the pressure applied to the mixture is maintained until it has cooled down. The composite is in a state of elastic compression and spontaneously expands when removed from the die, giving rise to the high levels of acoustic attenuation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile