Patent US3822202A successfully refreshed from Google Patents.
Patent US3894403A successfully refreshed from Google Patents.
US3894403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration-free refrigeration transfer
Assignee: Sumitomo SHI Cryogenics of America Inc
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Filing: 1973-06-08
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Granted: 1975-07-15
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Expires: 1993-06-08
Abstract
Abstract An apparatus for transferring refrigeration to an object to be cooled without mechanical contact of the refrigerator and object so that vibrational loads are not transferred to the object. The apparatus is characterized in that a fluid transfer medium is caused to circulate in a confined path adjacent the refrigeration source and the object to effect cooling of the object. An apparatus such as disclosed is ideally suited for cooling samples for Mossbauer Spectroscopy.
Inventors
- 👤 Ralph C Longsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:02
CPC Classifications
F; F25; F25D; F25D19/00; F25D19/006; H; H01; H01F; H01F6/00; H01F6/04; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/888; Y10S505/892; Y10S505/897
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
Apparatus for transferring refrigeration from a cold refrigeration source to an object to be cooled comprising in combination: a source of cryogenic refrigeration; means for confining and circulating a fluid transfer medium in contact with the source of refrigeration; said means including a structural member affixed to the source of refrigeration thereby producing an elongated confined flow path for the fluid transfer medium; and a support means for holding an object to be cooled in contact with the circulating fluid transfer medium, the support means being mounted in spaced relation to the refrigeration source to prevent forces induced by motion of the refrigeration source from being transmitted directly to the object support means.
Claim 2
Dependent Claim
113 words
Apparatus for transferring refrigeration from a cold refrigeration source to an object to be cooled comprising in combination: a source of cryogenic refrigeration; means for confining and circulating a fluid transfer medium in contact with the source of refrigeration; said means including a structural member affixed to the source of refrigeration thereby producing an elongated confined flow path for the fluid transfer medium; and a support means for holding an object to be cooled in contact with the circulating fluid transfer medium, the support means being mounted in spaced relation to the refrigeration source to prevent forces induced by motion of the refrigeration source from being transmitted directly to the object support means.
Claim 3
Dependent Claim
33 words
An apparatus according to claim 1 wherein the refrigeration source and object support means are disposed within a vacuum jacket and the fluid transfer medium is maintained at a pressure of one atmosphere.
Claim 4
Dependent Claim
50 words
An apparatus according to claim 1 wherein the means for confining and circulating the fluid transfer medium includes a first heat exchanger in contact with the refrigeration source, the heat exchanger having a plurality of elongated generally parallel fluid passages therein for inducing convective circulation of the fluid transfer medium.
Claim 5
Dependent Claim
37 words
An apparatus according to claim 3 including a second heat exchanger positioned coaxially to the first heat exchanger in contact with the refrigeration source thereby extending the length of the circulation path of the fluid transfer medium.
Claim 6
Dependent Claim
78 words
An apparatus according to claim 4 wherein a chimney is interposed between said first and second heat exchangers to furtHer enhance convective circulation of the fluid transfer medium. 6. An apparatus according to claim 1 including a flexible bellows-shaped sleeve between the refrigeration source and the object support means operable as part of the means for confining the fluid transfer medium, thus preventing transfer of forces induced by motion of the refrigeration source to the object support means.
Claim 7
Dependent Claim
19 words
An apparatus according to claim 6 wherein the fluid transfer medium is maintained at a pressure of one atmosphere.
Claim 8
Dependent Claim
13 words
An apparatus according to claim 6 wherein the fluid transfer medium is helium.
Claim 9
Dependent Claim
105 words
A superconducting magnet cooling apparatus comprising in combination: an elongated cryogenic refrigerator with a cold end disposed adjacent the superconducting magnet; means for confining and circulating a fluid transfer medium in contact with the refrigerator cold end, said means including a heat exchanger affixed to the refrigerator cold end whereby the heat exchanger causes the fluid transfer medium to circulate in an elongated confined flow path; and a superconducting magnet support, said support positioning the superconducting magnet in contact with the circulating fluid transfer medium, the support mounted to prevent forces induced by motion of the refrigerator from being transmitted directly to the superconducting magnet.
Claim 10
Dependent Claim
105 words
A superconducting magnet cooling apparatus comprising in combination: an elongated cryogenic refrigerator with a cold end disposed adjacent the superconducting magnet; means for confining and circulating a fluid transfer medium in contact with the refrigerator cold end, said means including a heat exchanger affixed to the refrigerator cold end whereby the heat exchanger causes the fluid transfer medium to circulate in an elongated confined flow path; and a superconducting magnet support, said support positioning the superconducting magnet in contact with the circulating fluid transfer medium, the support mounted to prevent forces induced by motion of the refrigerator from being transmitted directly to the superconducting magnet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |