Patent US5214341A successfully refreshed from Google Patents.
US5214341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric acutator device with vibration absorbing means
Assignee: Fujitsu Ltd
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Filing: 1992-05-22
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Granted: 1993-05-25
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Expires: 2012-05-22
Abstract
Abstract A piezoelectric actuator device adapted for use in a printing machine and comprising a piezoelectric assembly and a movement magnifying mechanism for magnifying the movement of the piezoelectric assembly and for transferring the magnified movement to the printing wire. The movement magnifying mechanism includes a rigid member, a first spring connecting the second end of the piezoelectric assembly to the rigid member, and a second spring connecting the rigid member to the support base. A vibration absorbing means preferably comprising silicone rubber resin is inserted between the first and second springs to damp the vibration of the movement magnifying mechanism.
Inventors
- 👤 Kiyoshi Itoh
- 👤 Minoru Hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:22
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/22; B41J2/23; B41J2/27; B41J2/295; H; H02; H02N; H02N2/00; H02N2/02; H02N2/04; H02N2/043; H10; H10N; H10N30/00; H10N30/80; H10N30/88; H10N30/886
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
A piezoelectric actuator device, comprising: a stationary base; a piezoelectric assembly having a first end supported by the support base and a second end; a movement magnifying mechanism including a rigid member; a first spring connecting the second end of the piezoelectric assembly to the rigid member, and a second spring connecting the rigid member to the support base, and a vibration absorbing means inserted between the first and second springs, the vibration absorbing means extending along the lengths of the first and second springs.
Claim 2
Dependent Claim
85 words
A piezoelectric actuator device, comprising: a stationary base; a piezoelectric assembly having a first end supported by the support base and a second end; a movement magnifying mechanism including a rigid member; a first spring connecting the second end of the piezoelectric assembly to the rigid member, and a second spring connecting the rigid member to the support base, and a vibration absorbing means inserted between the first and second springs, the vibration absorbing means extending along the lengths of the first and second springs.
Claim 3
Dependent Claim
22 words
A piezoelectric actuator device according to claim 1, wherein said first and second springs are leaf springs arranged parallel to each other.
Claim 4
Dependent Claim
15 words
A piezoelectric actuator device according to claim 1, wherein said vibration absorbing means comprises resin.
Claim 5
Dependent Claim
17 words
A piezoelectric actuator device according to claim 3, wherein said vibration absorbing means comprises silicone rubber resin.
Claim 6
Dependent Claim
34 words
A piezoelectric actuator device according to claim 1, wherein said piezoelectric actuator is used in a printing machine including a printing wire that is attached to the rigid member of the movement magnifying mechanism.
References Cited (Backward Citations)
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US2513269A
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GB698989A
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US2879413A
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US3927410A
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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) | 1996-05-24 | 1996-11-23 | 1997-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-24 | 2000-11-23 | 2001-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-24 | 2004-11-23 | 2005-05-25 | $7700.00 | Window Closed / Lapsed |