Tool using a piezo actuator

Details Tool using a piezo actuator Tool using a piezo actuator

2007-01-02

2007-01-02

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C073S019030, C060S652000

Reexamination Certificate

active

10906511

ABSTRACT:
A tool has a tool insert and an electrically operated drive unit oscillatingly driving the tool insert. The drive unit has a piezo actuator and an adjusting travel enlarger coupled to the piezo actuator. The adjusting travel enlarger has a master piston, at least one slave piston, and at least one pressure chamber. The master piston acts through the at least one pressure chamber on the at least one slave piston. The piezo actuator and the master piston are fixedly connected to one another.

REFERENCES:
patent: 3501099 (1970-03-01), Benson
patent: 3635016 (1972-01-01), Benson
patent: 4173725 (1979-11-01), Asai
patent: 4741731 (1988-05-01), Starck et al.
patent: 5055733 (1991-10-01), Eylman
patent: 6204592 (2001-03-01), Hur
patent: 6617760 (2003-09-01), Peterson et al.
patent: 6762535 (2004-07-01), Take et al.
patent: 44 07 962 (1995-06-01), None
Maeda Kyoichi; Ultrasonic Saw; Patent Abstracts of Japan 03117513; May 20, 1991; attached English translation of JP patent document provided by JPO.

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