US3281518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermocouple assembly
Assignee: Leeds and Northrup Co
•
Filing: 1963-11-26
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Granted: 1966-10-25
•
Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Roger C Stroud
- 👤 Harry J Hesson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:07
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/16; G01K1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A FAST-ACTING TEMPERATURE RESPONSIVE ASSEMBLY COMPRISING: A WELL HAVING A CLOSED END OF THE TYPE FOR DISPOSITION IN HEAT TRANSFER RELATION WITH A MEDIUM THE TEMPERATURE OF WHICH IS TO BE MEASURED, A PROBE HAVING TEMPERATURE RESPONSIVE MEANS THEREIN AND AN END PORTION THEREON DISPOSED IN SUBSTANTIAL MATING RELATIONSHIP WITH AND OF CONFIGURATION COMPLEMENTARY TO A CORRESPONSING PORTION OF THE CLOSED END OF SAID WELL, A MASS OF FINE POWDER CONSISTING OF A METAL OF HIGH THERMAL CONDUCTIVITY FORMING A RELATIVELY THIN BOUNDARY LAYER BETWEEN SAID END PORTION OF SAID PROBE AND SAID CORRESPONDING PORTION OF SAID WELL TO INCREASE THE AREA OF THERMALLY CONDUCTIVE SURFACE CONTACT AND RATE OF HEAT TRANSFER BY ACCOMMODATING FOR ANY IRREGULARITIES THEREBETWEEN, AND MEANS FOR MAINTAINING COMPRESSIVE FORCES BETWEEN SAID END PORTION OF SAID PROBE AND SAID CORRESPONDING PORTION OF SAID WELL TO CORRESPONDINGLY COMPRESS SAID MASS OF FINE POWDER TO UNIFORMLY DISTRIBUTE THE POWDER BETWEEN THE END PORTION OF THE PROBES AND THE CORRESPONDING PORTION OF THE WELL AS WELL AS TO ENHANCE THE THERMAL CONDUCTIVITY THEREOF.
Claim 2
Dependent Claim
174 words
A FAST-ACTING TEMPERATURE RESPONSIVE ASSEMBLY COMPRISING: A WELL HAVING A CLOSED END OF THE TYPE FOR DISPOSITION IN HEAT TRANSFER RELATION WITH A MEDIUM THE TEMPERATURE OF WHICH IS TO BE MEASURED, A PROBE HAVING TEMPERATURE RESPONSIVE MEANS THEREIN AND AN END PORTION THEREON DISPOSED IN SUBSTANTIAL MATING RELATIONSHIP WITH AND OF CONFIGURATION COMPLEMENTARY TO A CORRESPONSING PORTION OF THE CLOSED END OF SAID WELL, A MASS OF FINE POWDER CONSISTING OF A METAL OF HIGH THERMAL CONDUCTIVITY FORMING A RELATIVELY THIN BOUNDARY LAYER BETWEEN SAID END PORTION OF SAID PROBE AND SAID CORRESPONDING PORTION OF SAID WELL TO INCREASE THE AREA OF THERMALLY CONDUCTIVE SURFACE CONTACT AND RATE OF HEAT TRANSFER BY ACCOMMODATING FOR ANY IRREGULARITIES THEREBETWEEN, AND MEANS FOR MAINTAINING COMPRESSIVE FORCES BETWEEN SAID END PORTION OF SAID PROBE AND SAID CORRESPONDING PORTION OF SAID WELL TO CORRESPONDINGLY COMPRESS SAID MASS OF FINE POWDER TO UNIFORMLY DISTRIBUTE THE POWDER BETWEEN THE END PORTION OF THE PROBES AND THE CORRESPONDING PORTION OF THE WELL AS WELL AS TO ENHANCE THE THERMAL CONDUCTIVITY THEREOF.
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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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |