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:
Mar. 14, 1989
Filed:
Apr. 03, 1987
Shoji Mishiro, Kanagawa, JP;
Taga Electric Co., Ltd., Tokyo, JP;
Abstract
An ultrasonic vibrator comprises torsional electrostrictive transducers for torsional vibration, longitudinal electrostrictive transducers for longitudinal vibration, and two metallic members firmly, coaxially and integrally holding the torsional electrostrictive transducers and the longitudinal electrostrictive transducers therebetween. An altered section is formed in one of the metallic members in such a shape that makes the torsional resonant frequency and the longitudinal resonant frequency coincide with each other. A voltage or an electric current having a controlled amplitude and/or a controlled relative phase is applied to the electrostrictive transducers to generate composite vibrations of various modes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile