Global Patent Index - EP 1159768 A1

EP 1159768 A1 2001-12-05 - PACKAGED STRAIN ACTUATOR

Title (en)

PACKAGED STRAIN ACTUATOR

Title (de)

GEHÄUSTER ZUGAKTUATOR

Title (fr)

ENSEMBLE ACTIONNEUR D'EXTENSION

Publication

EP 1159768 A1 (EN)

Application

EP 00914695 A

Priority

  • US 0004774 W
  • US 26147599 A
  • US 30013799 A

Abstract (en)

[origin: WO0051190A1] A modular actuator assembly includes one or more plates or elements of electro-active material bonded to an electroded sheet, preferably by a structural polymer to form a card. The card is sealed, and may itself constitute a practical device, such as a vane, shaker, stirrer, lever, pusher or sonicator for direct contact with a solid or immersion in a fluid, or may be bonded by a stiff adhesive to make a surface-to-surface mechanical coupling with a solid workpiece, device, substrate machine or sample. The structural polymer provides a bending stiffness such that the thin plate does not deform to its breading point, and a mechanical stiffness such that shear forces are efficiently coupled from the plate to the workpiece. In further embodiments, the card may include active circuit elements for switching, powering or processing signals, and/or passive circuit elements for filtering, matching or damping signals, so that few or no connection to outside circuitry are required. The actuator assembly can be manufactured in quantity, to provide a versatile actuator with uniform mechanical and actuation characteristics, that introduces negligible mass loading to the workpiece. The cards themselves may be arranged as independent mechanical actuators, rather than strain-transfer actuators, in which the induced strain changes the position of the card. Various arrangements of pinned or cantilevered cards may act as a pusher, bender or other motive actuator, and structures such as powered bellows may be formed directly by folding one or more suitably patterned cards.

IPC 1-7 (main, further and additional classification)

H01L 41/09

IPC 8 full level (invention and additional information)

H01L 23/12 (2006.01); G03F 7/20 (2006.01); H01L 41/09 (2006.01); H02N 2/00 (2006.01)

CPC (invention and additional information)

H01L 41/0953 (2013.01); G03F 7/70725 (2013.01); H01L 41/047 (2013.01); H01L 41/053 (2013.01); H01L 41/0926 (2013.01); H01L 41/0933 (2013.01); H01L 41/094 (2013.01); H01L 41/0993 (2013.01)

Citation (search report)

See references of WO 0051190A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0051190 A1 20000831; BR 0008500 A 20030225; CA 2363949 A1 20000831; EP 1159768 A1 20011205; JP 2003527046 A 20030909

INPADOC legal status


2004-03-03 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20030902

2002-04-03 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: LAZARUS, KENNETH, B.

2002-04-03 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: LUNDSTROM, MARK, E.

2002-04-03 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: MOORE, JEFFREY, W.

2002-04-03 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: CRAWLEY, EDWARD

2002-04-03 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: RUSSO, FARLA

2002-04-03 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: YOSHIKAWA, SHOKO

2002-04-03 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: FITCH, ERIC

2001-12-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010921

2001-12-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE