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:
Apr. 20, 1993
Filed:
Dec. 20, 1991
Hajime Shibata, Tokyo, JP;
Kaijo Denki Co., Ltd., , JP;
Abstract
An ultrasonic oscillating device comprising a base plate and an ultrasonic transducer attached to the base plate. The thickness of the base plate is an integer multiple of approximately a half-wavelength of an oscillation of the base plate in the direction of its thickness under a driving frequency. The base plate may be a quadrilateral such as a square and a rectangle with a length of one side of the quadrilateral being at least a quarter-wavelength of the oscillation. The base plate may be a circle with a length of a diameter of the circle being at least a quarter-wavelength of the oscillation. An ultrasonic washing apparatus comprising a cleaning tank, an ultrasonic multi-frequency oscillator, and the ultrasonic oscillating device is also provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile