Actuator

Details Actuator Actuator

2008-05-06

2008-05-06

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S012060, C310S323010, C310S326000, C310S328000

Reexamination Certificate

active

07368854

ABSTRACT:
An actuator comprises: an electro-mechanical conversion element; a driving frictional member mounted onto one side in an extension/contraction direction of the electro-mechanical conversion element, the driving frictional member being frictionally engaged with a driven member; and a weight member mounted onto the other side in the extension/contraction direction of the electro-mechanical conversion element, wherein at least a part of the weight member is disposed at the one side from an end face of the other side of the electro-mechanical conversion element.

REFERENCES:
patent: 5847488 (1998-12-01), Yoshida et al.
patent: 6188161 (2001-02-01), Yoshida et al.
patent: 6611080 (2003-08-01), Ngol et al.
patent: 2002/0030422 (2002-03-01), Hata
patent: 2003/0168940 (2003-09-01), Kurita et al.
patent: 2004/0012304 (2004-01-01), Yoshida et al.
patent: 2007/0114888 (2007-05-01), Tokumiya
patent: 1708287 (2006-10-01), None
patent: 55046682 (1980-04-01), None
patent: EP-1708287 (2006-10-01), None

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