Patent US3224206A successfully refreshed from Google Patents.
US3224206A
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Contour design for "cascading by shaping" thermomagnetic devices
Assignee: Individual
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Filing: 1964-11-23
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Granted: 1965-12-21
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 John R Sizelove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:25
CPC Classifications
F; F25; F25B; F25B21/00; H; H10; H10N; H10N15/00; F25B2321/00; F25B2321/002; F25B2321/0021; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A THERMOMAGNETIC COOLING ELEMENT CUT FROM A SINGLE HEXAGONAL CRYSTAL OF ANISOTROPIC MATERIAL OF 90 TO 97 PERCENT BISMUTH THE REMAINDER BEING PRIMARILY ANTIMONY FOR USE IN A MAGNETIC FIELD WITH A CURRENT FLOWING THROUGH THE SAID ELEMENT AT RIGHT ANGLES TO THE MAGNETIC FIELD PROVIDING A THERMAL GRADIENT AT RIGHT ANGLES TO THE MAGNETIC FIELD AND THE FLOW OF CURRENT WITH A COOLED SURFACE AND A HIGHER TEMPERATURE SURFACE, THE HIGHER TEMPERATURE SURFACE BEING MAINTAINED AT A TEMPERATURE OF 70*K. TO 200* K. BY A TEMPERATURE MAINTAINING HEATSINK, THE SAID ELEMENT HAING THE CONTOOUR IN CROSS SECTION IN THE PLANE OF THE TEMPERATURE GRADIENT REPRESENTED BY THE EXPRESSION,
Claim 2
Dependent Claim
109 words
A THERMOMAGNETIC COOLING ELEMENT CUT FROM A SINGLE HEXAGONAL CRYSTAL OF ANISOTROPIC MATERIAL OF 90 TO 97 PERCENT BISMUTH THE REMAINDER BEING PRIMARILY ANTIMONY FOR USE IN A MAGNETIC FIELD WITH A CURRENT FLOWING THROUGH THE SAID ELEMENT AT RIGHT ANGLES TO THE MAGNETIC FIELD PROVIDING A THERMAL GRADIENT AT RIGHT ANGLES TO THE MAGNETIC FIELD AND THE FLOW OF CURRENT WITH A COOLED SURFACE AND A HIGHER TEMPERATURE SURFACE, THE HIGHER TEMPERATURE SURFACE BEING MAINTAINED AT A TEMPERATURE OF 70*K. TO 200* K. BY A TEMPERATURE MAINTAINING HEATSINK, THE SAID ELEMENT HAING THE CONTOOUR IN CROSS SECTION IN THE PLANE OF THE TEMPERATURE GRADIENT REPRESENTED BY THE EXPRESSION,
References Cited (Backward Citations)
US3090207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |