Patent JPS5714358A successfully refreshed from Google Patents.
US4852356A
Expired / Lapsed
US
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Cryogenic cooler
Assignee: ICE CRYOGENIC ENGINEERING Ltd A Co OF ISRAEL
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Filing: 1987-03-16
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Granted: 1989-08-01
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Expires: 2007-03-16
Abstract
Abstract An integral Stirling cryogenic cooler including a compressor, an expander-displacer portion defining an expansion volume, a cold tip adjacent the expansion volume, a cold tip adjacent the expansion volume, a regenerator heat exchanger and a displacer, a crank shaft arranged to receive input rotary power and to drive the compressor and the displacer, and apparatus for low vibration mounting of the expander-displacer portion with respect to the compressor.
Inventors
- 👤 Rueven Z. Unger
- 👤 Mark Kushnir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:23
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/14; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/044; F02G1/0445; F02G2244/00; F02G2244/02; F02G2244/06; F02G2244/10; F02G2250/00; F02G2250/18; F02G2258/00; F02G2258/10; F25B2309/00; F25B2309/003
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
61 words
An integral Stirling cryogenic cooler comprising: a compressor; an expander-displacer defining an expansion volume; a cold tip adjacent said expansion volume; a regenerator heat exchanger and a displacer; a crank shaft arranged to receive input rotary power and to drive the compressor and the displacer; and Bellows means for low vibration mounting of the cold tip with respect to the compressor.
Claim 2
Dependent Claim
61 words
An integral Stirling cryogenic cooler comprising: a compressor; an expander-displacer defining an expansion volume; a cold tip adjacent said expansion volume; a regenerator heat exchanger and a displacer; a crank shaft arranged to receive input rotary power and to drive the compressor and the displacer; and Bellows means for low vibration mounting of the cold tip with respect to the compressor.
Claim 3
Dependent Claim
24 words
A cryogenic cooler according to claim 1 and also comprising vibration sensitive apparatus to be cooled, which is mounted directly on the cold tip.
Claim 4
Dependent Claim
20 words
A cryogenic cooler according to claim 1 and wherein the means for low vibration mounting comprises a sealed bellows mounting.
Claim 5
Dependent Claim
20 words
A cryogenic cooler according to claim 2 and wherein the means for low vibration mounting comprises a sealed bellows mounting.
Claim 6
Dependent Claim
16 words
A cryogenic cooler according to claim 1 and wherein the expander-displacer comprises a dynamic labyrinth seal.
Claim 7
Dependent Claim
16 words
A cryogenic cooler according to claim 2 and wherein the expander-displacer comprises a dynamic labyrinth seal.
Claim 8
Dependent Claim
16 words
A cryogenic cooler according to claim 3 and wherein the expander-displacer comprises a dynamic labryinth seal.
Claim 9
Dependent Claim
16 words
A cryogenic cooler according to claim 4 and wherein the expander-displacer comprises a dynamic labyrinth seal.
Claim 10
Dependent Claim
16 words
A cryogenic cooler according to claim 1 and wherein the compressor comprises a dynamic labyrinth seal.
Claim 11
Dependent Claim
16 words
A cryogenic cooler according to claim 2 and wherein the compressor comprises a dynamic labyrinth seal.
Claim 12
Dependent Claim
16 words
A cryogenic cooler according to claim 3 and wherein the compressor comprises a dynamic labyrinth seal.
Claim 13
Dependent Claim
16 words
A cryogenic cooler according to claim 4 and wherein the compressor comprises a dynamic labyrinth seal.
Claim 14
Dependent Claim
38 words
A cryogenic cooler according to claim 1 and also comprising electric motor apparatus for driving the compressor and expander-displacer and being located externally of the compressor and expander-displacer portion and not in fluid communication with the interiors thereof.
Claim 15
Dependent Claim
38 words
A cryogenic cooler according to claim 3 and also comprising electric motor apparatus for driving the compressor and expander-displacer and being located externally of the compressor and expander-displacer portion and not in fluid communication with the interiors thereof.
Claim 16
Dependent Claim
38 words
A cryogenic cooler according to claim 5 and also comprising electric motor apparatus for driving the compressor and expander-displacer and being located externally of the compressor and expander-displacer portion and not in fluid communication with the interiors thereof.
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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) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |