US5351789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positioning mechanism
Assignee: NEC Corp
•
Filing: 1992-02-27
•
Granted: 1994-10-04
•
Expires: 2012-02-27
Abstract
Abstract A positioning mechanism includes a housing, at least one holding member inserted into a lateral opening formed in the housing at the side wall, thereof and an electrostrictive effect element mounted on the holding member. When the electrostrictive effect element is energized, it expands to urge the holding member against a moving member which is to be stopped and held a desired location.
Inventors
- 👤 Isao Tochihara
- 👤 Osamu Yamashita
- 👤 Mitsunori Sano
- 👤 Tomoyuki Takahashi
- 👤 Makoto Nakano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:13
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/30; F; F16; F16D; F16D49/00; F16D63/00; F16D63/006; F16D2121/00; F16D2121/18; F16D2121/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A sizing feed system comprising: a moving member for supporting in part; a linear drive connected to the moving member for driving the moving member; supporting means for supporting the moving member for movement along a linear path; a base, the linear drive and the supporting means being mounted on the base; a lever pivotably supported by the supporting means and having a pressing portion adapted to press a surface of the moving member; an electrostrictive effect element supported by the supporting means and coupled to the lever for applying a dressing force to the lever; a power source electrically connected to the electrostrictive effect element for energizing the electrostrictive effect element; sensing means for sensing a position of a part supported by the moving member; and control means for controlling the linear drive and the power source based on the position sensed by the sensing means.
Claim 2
Dependent Claim
147 words
A sizing feed system comprising: a moving member for supporting in part; a linear drive connected to the moving member for driving the moving member; supporting means for supporting the moving member for movement along a linear path; a base, the linear drive and the supporting means being mounted on the base; a lever pivotably supported by the supporting means and having a pressing portion adapted to press a surface of the moving member; an electrostrictive effect element supported by the supporting means and coupled to the lever for applying a dressing force to the lever; a power source electrically connected to the electrostrictive effect element for energizing the electrostrictive effect element; sensing means for sensing a position of a part supported by the moving member; and control means for controlling the linear drive and the power source based on the position sensed by the sensing means.
References Cited (Backward Citations)
US3902085A
Cited
US4096608A
Cited
US4681667A
Cited
US4622483A
Cited
US4779513A
Cited
US4714855A
Cited
US4727278A
Cited
US4854424A
Cited
US4769569A
Cited
US5039900A
Cited
US5055760A
Cited
US5090518A
Cited
US5182484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-03 | 1998-04-04 | 1998-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-03 | 2002-04-04 | 2002-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-03 | 2006-04-04 | 2006-10-04 | $7700.00 | Window Closed / Lapsed |