US7026745B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric actuator
Assignee: Huber and Suhner Polatis Ltd
•
Filing: 2002-06-19
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Granted: 2006-04-11
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Expires: 2022-06-19
Abstract
Abstract An actuator comprises a laminate of interleaved layers of electrode plates and piezoelectric material; wherein an upper region (in use) of electrode plates is adapted when energized to effect deflections in up and down directions; a lower region of electrode plates is adapted when energized to effect deflections in up and down directions; and one or more further regions of electrode plates are adapted when energized to effect deflections in left and right directions.
Inventors
- 👤 Andrew Nicholas Dames
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:59
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/35; G02B6/3564; G02B6/3568; G02B6/3578; G02B6/32; H; H10; H10N; H10N30/00; H10N30/20; H10N30/204; H10N30/2041; H10N30/2042; H10N30/2046; H10N30/50; H10N30/503; H10N30/505; H10N30/80; H10N30/87; H10N30/871; G02B6/3502; G02B6/42; G02B6/4201; G02B6/4219; G02B6/422; G02B6/4226
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
92 words
An actuator generally extending in the Z direction, comprising: a laminate of interleaved layers of electrode plates and piezoelectric material; a first region of electrode plates; means for energizing said first region to effect deflections in a first Y direction; a second region of electrode plates spaced in essentially the Y direction from said first region; means for energizing said second region to effect deflections in a second Y direction; at least one further region of electrode plates and means for energizing said further region to effect deflections in the X direction.
Claim 2
Dependent Claim
92 words
An actuator generally extending in the Z direction, comprising: a laminate of interleaved layers of electrode plates and piezoelectric material; a first region of electrode plates; means for energizing said first region to effect deflections in a first Y direction; a second region of electrode plates spaced in essentially the Y direction from said first region; means for energizing said second region to effect deflections in a second Y direction; at least one further region of electrode plates and means for energizing said further region to effect deflections in the X direction.
Claim 3
Dependent Claim
16 words
An actuator according to claim 1 , wherein said layers extend generally in the Z direction.
Claim 4
Dependent Claim
14 words
An actuator according to claim 1 , wherein said actuator comprises no central bore.
Claim 5
Dependent Claim
25 words
An actuator according to claim 1 , wherein said at least one further region of electrode plates is sandwiched between said first and second regions.
Claim 6
Dependent Claim
78 words
An actuator according to claim 1 , wherein said electrode plates of said at least one further region comprise a first set of electrode plates; means for conducting a first bias energizing voltage to effect deflections in a first X direction; a second set of electrode plates, and means for conducting a second bias energizing voltage to effect deflections in a second X direction, said first set being spaced in essentially the X direction from said second set.
Claim 7
Dependent Claim
37 words
An actuator according to claim 1 , further comprising electrode plates which extend essentially across electrodes of both the first and second set so as to interact with both first set and second set of electrode plates.
Claim 8
Dependent Claim
16 words
An actuator according to claim 1 , wherein said actuator is of a general cylindrical form.
Claim 9
Dependent Claim
15 words
An actuator according to claim 1 , wherein said actuator comprises at least one tunnel.
Claim 10
Dependent Claim
96 words
An actuator generally extending in the Z direction, comprising: a laminate of interleaved layers of electrode plates and piezoelectric material; a first region of electrode plates; means for energizing said first region to effect deflections in a first Y direction; a second region of electrode plates spaced in essentially the Y direction from said first region; means for energizing said second region to effect deflections in a second Y direction; at least one further region of electrode plates; means for energizing said further region to effect deflections in the X direction and at least one tunnel.
Claim 11
Dependent Claim
96 words
An actuator generally extending in the Z direction, comprising: a laminate of interleaved layers of electrode plates and piezoelectric material; a first region of electrode plates; means for energizing said first region to effect deflections in a first Y direction; a second region of electrode plates spaced in essentially the Y direction from said first region; means for energizing said second region to effect deflections in a second Y direction; at least one further region of electrode plates; means for energizing said further region to effect deflections in the X direction and at least one tunnel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-04-10 | 2009-10-10 | 2010-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-04-10 | 2013-10-10 | 2014-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-04-10 | 2017-10-10 | 2018-04-11 | $7700.00 | Window Closed / Lapsed |