Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-08-21
2007-08-21
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S366000, C310S328000
Reexamination Certificate
active
10526340
ABSTRACT:
The invention relates to a piezoelectric actuator (1) comprising a stack of a plurality of individual piezoelectric actuator elements (2, 2′, 2″) which are arranged between inner electrodes (3, 3′, 3″). Said piezoelectric actuator comprises a first metallisation strip (4) and a second metallisation strip (5), the inner electrodes (3, 3′, 3″) being respectively connected to the first or second metallisation strips (4, 5) in an alternating manner. A first outer electrode (6) and a second outer electrode (7) are fixed to the first or the second metallisation strips (4, 5) in order to electrically contact the piezoelectric actuator (1). Said outer electrodes (6, 7) respectively comprise a connection element (8, 9) for externally contacting the piezoelectric actuator (1), and at least one region which is embodied in such a way that it compensates length variations of the piezoelectric actuator (1) in the main oscillation direction (10) as a result of its design and arrangement. The elastic deformation exclusively extends inside a plane which is parallel to the main oscillation direction (10).
REFERENCES:
patent: 6208026 (2001-03-01), Binding et al.
patent: 6411018 (2002-06-01), Heinz
patent: 6528927 (2003-03-01), Schuh et al.
patent: 6573639 (2003-06-01), Heinz et al.
patent: 6700306 (2004-03-01), Nakamura et al.
patent: 6765337 (2004-07-01), Heinz et al.
patent: 6794800 (2004-09-01), Heinz
patent: 2001/0047796 (2001-12-01), Yamada et al.
patent: 2006/0022558 (2006-02-01), Bindig et al.
patent: 2006/0055288 (2006-03-01), Heinzmann et al.
patent: 196 48 545 (1998-05-01), None
patent: 199 13 271 (2000-09-01), None
patent: 199 17 728 (2000-10-01), None
patent: 199 28 780 (2001-01-01), None
patent: 199 28 189 (2001-04-01), None
patent: 100 17 975 (2001-10-01), None
patent: 101 13 744 (2002-06-01), None
patent: 1 065 735 (2001-01-01), None
patent: 08242025 (1996-09-01), None
patent: 09270539 (1997-10-01), None
patent: 2002202024 (2002-07-01), None
Schürz Willibald
Simmet Martin
Greenberg Laurence A.
Locher Ralph E.
Martin J. San
Schuberg Darren
Stemer Werner H.
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