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:
Feb. 14, 1978
Filed:
Sep. 30, 1975
Kiyokazu Asai, Nagoya, JA;
Akihiro Takeuchi, Nagoya, JA;
Abstract
An ultrasonic wave generator includes an ultrasonic oscillator, an ultrasonic wave transducer connected to the oscillator, a mechanical vibration amplifying member, and an ultrasonic vibratory member. An increased thickness portion, which projects from a portion of the circumferential surface of the ultrasonic vibratory member and from a side wall portion of the mechanical vibration amplifying member at a connecting portion of the ultrasonic vibratory member and the mechanical vibration amplifying member, is integrally formed upon the ultrasonic vibratory member and the mechanical vibration amplifying member whereby the cross-sectional area of the connecting portion between the ultrasonic vibratory member and mechanical vibration amplifying member is gradually changed. With this improvement, the mechanical strength of the connecting portion between the ultrasonic vibratory member and the mechanical vibration amplifying member is increased, the positive transmission of the ultrasonic waves from the mechanical vibration amplifying member to the ultrasonic vibratory member is insured, fatigue failure and cracking of the connecting portion is effectively prevented, and the ultrasonic waves are generated from the ultrasonic vibratory member in a stable manner for a long period of time.