US5129232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration isolation of superconducting magnets
Assignee: General Electric Co
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Filing: 1991-06-03
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Granted: 1992-07-14
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Expires: 2011-06-03
Abstract
Abstract In order to improve image resolution and magnetic field uniformity in a magnetic resonance imaging device, the vibrations and loads produced by the cryocooler are isolated from the superconducting magnet and cryostat. The vibrations and loads are isolated through the use of flexible, laminated copper connectors and rubber mounts.
Inventors
- 👤 Constantinos Minas
- 👤 Kenneth G. Herd
- 👤 Evangelos T. Laskaris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:31
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/04; F25; F25D; F25D19/00; F25D19/006; G; G01; G01R; G01R33/00; G01R33/20; G01R33/28; G01R33/38; G01R33/381; G01R33/3815; H; H01; H01F; H01F6/00; H01F6/04; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/888; Y10S505/892
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
68 words
A vibration isolation system for a superconducting magnet having a first magnet and a thermal shield which is comprised of: a cryocooler means having first and second stages and located substantially adjacent to said thermal shield; a cryostat means located substantially adjacent said cryocooler means; and resilient vibration isolator means connected between said first magnet and said cryocooler means and also, between said cryocooler means and cryostat means.
Claim 2
Dependent Claim
68 words
A vibration isolation system for a superconducting magnet having a first magnet and a thermal shield which is comprised of: a cryocooler means having first and second stages and located substantially adjacent to said thermal shield; a cryostat means located substantially adjacent said cryocooler means; and resilient vibration isolator means connected between said first magnet and said cryocooler means and also, between said cryocooler means and cryostat means.
Claim 3
Dependent Claim
23 words
The vibration isolation system, according to claim 1, wherein said resilient vibration isolator means are further comprised of: a flexible, laminated metallic material.
Claim 4
Dependent Claim
18 words
The vibration isolation system, according to claim 2, wherein said metallic material is further comprised of: copper sheets.
Claim 5
Dependent Claim
25 words
The vibration isolation system, according to claim 2, wherein said metallic material mechanically separates, thermally connects and vibrationally isolates said magnet and said second stage.
Claim 6
Dependent Claim
26 words
The vibration isolation system, according to claim 2, wherein said metallic material mechanically separates, thermally connects and vibrationally isolates said thermal shield and said first stage.
Claim 7
Dependent Claim
21 words
The vibration isolation system, according to claim 2, wherein said rubber-like material vibrationally isolates said cryocooler means and said cryostat means.
Claim 8
Dependent Claim
22 words
The vibration isolation system, according to claim 1, wherein said resilient vibration isolator means are further comprised of: a compressible rubber-like material.
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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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |