Patent US3118285A successfully refreshed from Google Patents.
US3118285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermo-
Assignee: —
•
Filing: —
•
Granted: 1964-01-21
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Expires: 1981-01-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:38
CPC Classifications
F; F25; F25B; F25B25/00; F25B21/00; F25B21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A CRYOGENIC SYSTEM FOR PRODUCING VERY LOW TEMPERATURES COMPRISING A CRYOGENIC ENGINE DESIGNED TO OPERATE ON A MODIFIED STIRLING CYCLE AND HAVING A COLD OUTPUT END, A SHEET OF HEAT-CONDUCTING, ELECTRICAL INSULATING MATERIAL DISPOSED AGAINST SAID COLD END, A PYRAMIDED SERIES OF SOLID STATE THERMO-ELECTRIC JUNCTIONS HAVING A HOT JUNCTION AND A COLD JUNCTION, SAID HOT JUNCTION BEING MOUNTED ON SAID SHEET, WHEREBY THE REFRIGERATION OF THE ENTIRE SYSTEM IS CASCADED TO SAID COLD JUNCTION, AND A PLASTIC INSULATING CASTING ENCASING SAID COLD END, SAID SHEET, AND AT LEAST THE HOT JUNCTION OF SAID THERMO-ELECTRIC SERIES IN A MANNER TO SERVE AS AN ENCAPSULATING MOUNTING FOR THE COLD END OF THE SYSTEM.
Claim 2
Dependent Claim
112 words
A CRYOGENIC SYSTEM FOR PRODUCING VERY LOW TEMPERATURES COMPRISING A CRYOGENIC ENGINE DESIGNED TO OPERATE ON A MODIFIED STIRLING CYCLE AND HAVING A COLD OUTPUT END, A SHEET OF HEAT-CONDUCTING, ELECTRICAL INSULATING MATERIAL DISPOSED AGAINST SAID COLD END, A PYRAMIDED SERIES OF SOLID STATE THERMO-ELECTRIC JUNCTIONS HAVING A HOT JUNCTION AND A COLD JUNCTION, SAID HOT JUNCTION BEING MOUNTED ON SAID SHEET, WHEREBY THE REFRIGERATION OF THE ENTIRE SYSTEM IS CASCADED TO SAID COLD JUNCTION, AND A PLASTIC INSULATING CASTING ENCASING SAID COLD END, SAID SHEET, AND AT LEAST THE HOT JUNCTION OF SAID THERMO-ELECTRIC SERIES IN A MANNER TO SERVE AS AN ENCAPSULATING MOUNTING FOR THE COLD END OF THE SYSTEM.
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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |