Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-03-15
2010-11-23
Budd, Mark (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S366000
Reexamination Certificate
active
07839054
ABSTRACT:
A piezoelectric actuator comprising a stack of piezoelectric layers formed from a piezoelectric material, a plurality of internal electrodes disposed throughout the stack to define active regions of the piezoelectric material therebetween which are responsive to a voltage applied across two or more groups of the internal electrodes in use, an insulating arrangement which at least partially covers at least one surface of the stack to define a piezoelectric/insulator interface, and two or more side electrodes to connect with the two or more groups of the internal electrodes. At least one bridging arrangement extends through the insulating arrangement and comprises a conductive material, so as to provide a connection between a side electrode and an internal electrode, wherein at least one first surface, defined by an interface between the conductive material and the insulating arrangement, and at least one second surface, defined by an internal boundary of a piezoelectric layer, are substantially continuous with one another in the vicinity of the piezoelectric/insulator interface.
REFERENCES:
patent: 5844349 (1998-12-01), Oakley et al.
patent: 6104129 (2000-08-01), Okamoto
patent: 6822374 (2004-11-01), Smith et al.
patent: 2002/0149296 (2002-10-01), Fujii et al.
patent: 2006/0043842 (2006-03-01), Iwase et al.
patent: 102005034904 (2006-02-01), None
patent: 2258084 (1993-01-01), None
patent: 62239588 (1987-10-01), None
patent: 63084175 (1988-04-01), None
patent: 02 203578 (1990-08-01), None
patent: 03156986 (1991-07-01), None
patent: 03185884 (1991-08-01), None
patent: 07074410 (1995-03-01), None
patent: 09153649 (1997-06-01), None
patent: 2004 063886 (2004-02-01), None
Cooke Michael P.
Goat Christopher A.
Panteny Simon R.
Reid Gordon M.
Budd Mark
Delphi Technologies Holding S.arl
Twomey Thomas N.
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