US5449053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration dampener
Assignee: United States Department of the Navy
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Filing: 1993-11-22
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Granted: 1995-09-12
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Expires: 2013-11-22
Abstract
Abstract There is disclosed a vibration dampener comprising a body for disposition tween two relatively movable members, the body being formed from a carrier of a gel material and particles having electrorheological properties embedded in the carrier with the particles electrically aligned and pseudo-bonded. Upon a displacement force being applied to the body, as by one of the members, the particles resist motion relative to other of the particles. There is further disclosed a method for making the aforesaid vibration dampener wherein the dampener has a current passed through it while the carrier cures into a gel material.
Inventors
- 👤 Wendell C. Maciejewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:19
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/006; F16F15/00; F16F15/02; F16F7/00; F16F7/10; F16F7/1005; F16F2224/00; F16F2224/04; F16F2224/043; F16F2224/048; F16F2226/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
106 words
A vibration dampener comprising a solid body for disposition between and attachment to two relatively movable members, said body comprising: a carrier comprising a molded and cured gel material; and electrically conductive particles of electrorheological response material embedded in said carrier in electrically aligned position and pseudo-bonded one to another, said particles being permanently set in said aligned and pseudo-bonded positions, with chains of said aligned and pseudo-bonded particles being substantially evenly distributed throughout said body, such that upon displacement force being applied to said body by one of said members, said particles resist motion relative to other of said particles aligned with and pseudo-bonded thereto.
Claim 2
Dependent Claim
106 words
A vibration dampener comprising a solid body for disposition between and attachment to two relatively movable members, said body comprising: a carrier comprising a molded and cured gel material; and electrically conductive particles of electrorheological response material embedded in said carrier in electrically aligned position and pseudo-bonded one to another, said particles being permanently set in said aligned and pseudo-bonded positions, with chains of said aligned and pseudo-bonded particles being substantially evenly distributed throughout said body, such that upon displacement force being applied to said body by one of said members, said particles resist motion relative to other of said particles aligned with and pseudo-bonded thereto.
Claim 3
Dependent Claim
16 words
The dampener in accordance with claim 1 wherein said gel material is a urethane gel-type material.
Claim 4
Dependent Claim
12 words
The dampener in accordance with claim 2 wherein said particles are cornstarch.
Claim 5
Dependent Claim
18 words
The dampener in accordance with claim 1 wherein said body is substantially devoid of pockets of trapped air.
Claim 6
Dependent Claim
17 words
The dampener in accordance with claim 1 wherein said body is fixed to each of said members.
Claim 7
Dependent Claim
28 words
The dampener in accordance with claim 5 wherein said particles are aligned in an attitude substantially normal to surfaces of said members to which said body is fixed.
References Cited (Backward Citations)
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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) | 1998-09-11 | 1999-03-13 | 1999-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-11 | 2003-03-13 | 2003-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-11 | 2007-03-13 | 2007-09-12 | $7700.00 | Window Closed / Lapsed |