US4209657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for immersion-cooling superconductor
Assignee: Toshiba Corp
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Filing: 1977-05-31
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Granted: 1980-06-24
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Expires: 1997-05-31
Abstract
Abstract An apparatus for an immersion cooled superconductor including a cryostat which comprises an envelope provided with a heat insulating member; a first low temperature liquid received in the envelope; an interior vessel made of good heat conducting material and received in the envelope in a state immersed in the low temperature liquid; a second low temperature liquid received in the interior vessel with a slightly higher temperature than the first low temperature liquid; and a superconductor wire immersed in the second low temperature liquid.
Inventors
- 👤 Nobuhiko Inai
- 👤 Akihiko Miura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:17
CPC Classifications
F; F25; F25J; F25J1/00; F25J1/02; F25J1/0243; F25J1/0257; F25J1/0275; F25J1/0276; F25D; F25D3/00; F25D3/10; F25J1/003; F25J1/0047; F25J1/005; F25J1/006; F25J1/0062; F25J1/0065; H; H01; H01F; H01F6/00; H01F6/04; F25B; F25B2341/00; F25B2341/001; F25B2341/0012; F25J2270/00; F25J2270/14; F25J2270/16; F25J2270/90; F25J2270/912; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/885
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
77 words
An apparatus for an immersion-cooled superconductor including a cryostat which comprises an envelope provided with a heat-insulating means; a first low temperature liquid received in said heat-insulating vessel; an interior vessel made of good heat-conducting material and immersed in the first low temperature liquid; a second low temperature liquid which is higher in temperature than said first low temperature liquid and is held in the interior vessel; and a superconductor immersed in said second low temperature liquid.
Claim 2
Independent Claim
77 words
An apparatus for an immersion-cooled superconductor including a cryostat which comprises an envelope provided with a heat-insulating means; a first low temperature liquid received in said heat-insulating vessel; an interior vessel made of good heat-conducting material and immersed in the first low temperature liquid; a second low temperature liquid which is higher in temperature than said first low temperature liquid and is held in the interior vessel; and a superconductor immersed in said second low temperature liquid.
Claim 3
Dependent Claim
31 words
The apparatus for immersion-cooled superconductor according to claim 1, which further includes means for guiding bubbles of the second low temperature liquid occurring in the interior vessel to its inner wall.
Claim 4
Dependent Claim
30 words
The apparatus for immersion-cooled superconductor according to claim 1, which further includes means for forcefully circulating the second low temperature liquid received in the interior vessel through a circulating path.
Claim 5
Dependent Claim
28 words
The apparatus for immersion-cooled superconductor according to claim 1, wherein the interior vessel has its inner wall fitted with a large number of fins of good heat conductivity.
Claim 6
Dependent Claim
20 words
The apparatus for immersion-cooled superconductor according to claim 1, wherein the first and second low temperature liquids are liquid helium.
Claim 7
Independent Claim
111 words
An apparatus for an immersion-cooled superconductor including a cryostat which comprises an envelope provided with a heat insulating means, a first low temperature liquid received in the heat-insulating vessel, an interior vessel made of good heat-conducting material and immersed in the first low temperature liquid, a second low temperature liquid which is higher in temperature than the first low temperature liquid and is held in the interior vessel, a superconductor immersed in the second low temperature liquid; a first storage tank of the first low temperature liquid for supplying said first low temperature liquid to the envelope, and means for supplying the first low temperature liquid to the first storage tank.
Claim 8
Independent Claim
111 words
An apparatus for an immersion-cooled superconductor including a cryostat which comprises an envelope provided with a heat insulating means, a first low temperature liquid received in the heat-insulating vessel, an interior vessel made of good heat-conducting material and immersed in the first low temperature liquid, a second low temperature liquid which is higher in temperature than the first low temperature liquid and is held in the interior vessel, a superconductor immersed in the second low temperature liquid; a first storage tank of the first low temperature liquid for supplying said first low temperature liquid to the envelope, and means for supplying the first low temperature liquid to the first storage tank.
Claim 9
Dependent Claim
31 words
The apparatus for immersion-cooled superconductor according to claim 6, which further includes means for guiding bubbles of the second low temperature liquid occurring in the interior vessel to its inner wall.
Claim 10
Dependent Claim
30 words
The apparatus for immersion-cooled superconductor according to claim 6, which further includes means for forcefully circulating the second low temperature liquid received in the interior vessel through a circulating path.
Claim 11
Dependent Claim
45 words
The apparatus for immersion-cooled superconductor according to claim 8, which further includes a second storage tank of the second low temperature liquid provided in the circulation path of the circulation means and means for supplying the second low temperature liquid to the second storage tank.
Claim 12
Dependent Claim
28 words
The apparatus for immersion-cooled superconductor according to claim 6, wherein the interior vessel has its inner wall fitted with a large number of fins of good heat conductivity.
Claim 13
Dependent Claim
20 words
The apparatus for immersion-cooled superconductor according to claim 6, wherein the first and second low temperature liquids are liquid helium.
Claim 14
Dependent Claim
48 words
The apparatus for immersion-cooled superconductor according to claim 6, wherein the envelope and first liquid helium storage tank are each provided with an outlet of gaseous helium resulting from the vaporization of the low temperature liquid helium received in said envelope and said first liquid helium storage tank.
Claim 15
Dependent Claim
42 words
The apparatus for immersion-cooled superconductor according to claim 9, wherein the second liquid helium storage tank is provided with an outlet of gaseous helium resulting from the vaporization of the low temperature liquid helium received in said second liquid helium storage tank.
Claim 16
Dependent Claim
114 words
The apparatus for immersion-cooled superconductor having the first liquid storage tank according to claim 6, which further includes a second storage tank of the second low temperature liquid for supplying the second low temperature liquid and means for supplying the second low temperature liquid to the second tank, said means for supplying the first and second low temperature liquids comprising a common gas compressor for compressing gaseous helium into the liquid form, a common heat exchanger for cooling high pressure gaseous helium compressed by the gas compressor and two corresponding devices for liquefying gaseous helium of low temperature and high pressure cooled by the heat exchanger into first and second low temperature liquid helium.
Claim 17
Dependent Claim
47 words
The apparatus for an immersion-cooled superconductor according to claim 14, wherein the device for liquefying gaseous helium into the first low temperature liquid helium liquefies gaseous helium of low temperature and high pressure conducted through a heat exchanger pipe provided in the first liquid helium storage tank.
References Cited (Backward Citations)
US2704431A
Cited
US2901893A
Cited
US3343111A
Cited
US3412320A
Cited
US3513421A
Cited
US3611740A
Cited
US3835239A
Cited
US4020275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |