Patent US3199302A successfully refreshed from Google Patents.
US3199302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric devices
Assignee: Borg Warner Corp
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Filing: 1962-05-29
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Granted: 1965-08-10
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Expires: 1982-05-29
Abstract
No abstract record available.
Inventors
- 👤 Charles N Rollinger
- 👤 James E Sunderland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:39
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
IN A THERMOELECTRIC DEVICE COMPRISING MEANS DEFINING AT LEAST A SINGLE THERMOELECTRIC ELEMENT; MEANS TO PRODUCE A COLD JUNCTION AND A HOT JUNCTION; MEANS DEFINING THERMAL INSULATION ABOUT SAID THERMOELEMENT, SAID LAST MEANS CHARACTERIZED BY BEING EXTENDED FROM SUBSTANTIALLY ADJACENT ONE OF SAID JUNCTIONS TOWARD THE OTHER OF SAID JUNCTIONS A PREDETERMINED DISTANCE LESS THAN THE TOTAL LENGTH OF SAID ELEMENT TO A POINT WHERE THE TEMPERATURE OF SAID ELEMENT AT LEAST EQUALS THE TEMPERATURE OF THE ENVIRONMENT, THE RATIO OF SAID PREDETERMINED DISTANCE OF INSULATION EXTEND TO SAID TOTAL LENGTH OF THE ELEMENT BEING IN THE RANGE OF 0.03 TO 0.97, AND SAID LAST MEANS BEING EFFECTIVE TO DEFINE AN INSULATED ZONE ALONG SAID ELEMENT A DISTANCE WHICH IS A FUNCTION OF THE TEMPERATURE ALONG SAID ELEMENT, THE REMAINING UNINSULATED PORTION OF SAID ELEMENT BEING EXPOSED TO THE AMBIENT ENVIRONMENT, THE TEMPERATURE OF AMBIENT ENVIRONMENT BEING LOWER THAN THE TEMPERATURE OF THE HOT JUNCTION, WHEREBY THE TEMPERATURE DIFFERENCE BETWEEN SAID JUNCTIONS IS MAXIMIZED.
Claim 2
Dependent Claim
164 words
IN A THERMOELECTRIC DEVICE COMPRISING MEANS DEFINING AT LEAST A SINGLE THERMOELECTRIC ELEMENT; MEANS TO PRODUCE A COLD JUNCTION AND A HOT JUNCTION; MEANS DEFINING THERMAL INSULATION ABOUT SAID THERMOELEMENT, SAID LAST MEANS CHARACTERIZED BY BEING EXTENDED FROM SUBSTANTIALLY ADJACENT ONE OF SAID JUNCTIONS TOWARD THE OTHER OF SAID JUNCTIONS A PREDETERMINED DISTANCE LESS THAN THE TOTAL LENGTH OF SAID ELEMENT TO A POINT WHERE THE TEMPERATURE OF SAID ELEMENT AT LEAST EQUALS THE TEMPERATURE OF THE ENVIRONMENT, THE RATIO OF SAID PREDETERMINED DISTANCE OF INSULATION EXTEND TO SAID TOTAL LENGTH OF THE ELEMENT BEING IN THE RANGE OF 0.03 TO 0.97, AND SAID LAST MEANS BEING EFFECTIVE TO DEFINE AN INSULATED ZONE ALONG SAID ELEMENT A DISTANCE WHICH IS A FUNCTION OF THE TEMPERATURE ALONG SAID ELEMENT, THE REMAINING UNINSULATED PORTION OF SAID ELEMENT BEING EXPOSED TO THE AMBIENT ENVIRONMENT, THE TEMPERATURE OF AMBIENT ENVIRONMENT BEING LOWER THAN THE TEMPERATURE OF THE HOT JUNCTION, WHEREBY THE TEMPERATURE DIFFERENCE BETWEEN SAID JUNCTIONS IS MAXIMIZED.
References Cited (Backward Citations)
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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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |