Ultrasonic driving apparatus

Details Ultrasonic driving apparatus Ultrasonic driving apparatus

2006-01-23

2008-10-07

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07432633

ABSTRACT:
The invention provides an ultrasonic driving apparatus in which an oscillator contained therein is pressed against a driven member and can be positioned with a high degree of precision. The invention includes an oscillator for generating vibrations when supplied with electrical power; a holding member fixed to the oscillator; an urging member for urging the oscillator in a predetermined direction; and a support member for supporting the holding member so as to be capable of moving in the predetermined direction, wherein positioning portions for setting, with a certain degree of precision, the position of the oscillator which is projected onto a plane substantially orthogonal to the predetermined direction are provided in the holding member and the support member.

REFERENCES:
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patent: 6242846 (2001-06-01), Ashizawa et al.
patent: 7129621 (2006-10-01), Sakano et al.
patent: 7242131 (2007-07-01), Kishi et al.
patent: 7259497 (2007-08-01), Sakano et al.
patent: 7268464 (2007-09-01), Kishi
patent: 2004/0056564 (2004-03-01), Lino et al.
patent: 2004-96984 (2004-03-01), None

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