US3402079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature thermocouple
Assignee: United States Department of the Army
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Filing: 1965-07-21
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Granted: 1968-09-17
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Expires: 1985-07-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Farrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:36
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/04; G01K7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A HIGH TEMPERATURE THERMOCOUPLE TO MEASURE TEMPERATURES ABOVE 5000*F. COMPRISING A CYLINDRICAL TANTALUM HOUSING OPEN AT THE BOTTOM, AN OPEN ENDED TUBE OF TUNGSTEN AND 26% RHENIUM WITHIN THE HOUSING, A JUNCTION BLOCK CLOSING SAID TUBE AT THE TOP AND HAVING AN INTERIOR RECESS IN THE CENTER, A TUNGSTEN WIRE POSITIONED CENTRALLY WITH RESPECT TO SAID TUBE AND FITTED INTO SAID RECESS OF THE JUNCTION BLOCK, GRANULAR REFRACTORY MATERIAL SEALING THE BOTTOM OF THE HOUSING AND TUBE AND MAINTAINING THE HOUSING, TUBE AND WIRE IN SPACED RELATIONSHIP AND COPPER
Claim 2
Dependent Claim
89 words
A HIGH TEMPERATURE THERMOCOUPLE TO MEASURE TEMPERATURES ABOVE 5000*F. COMPRISING A CYLINDRICAL TANTALUM HOUSING OPEN AT THE BOTTOM, AN OPEN ENDED TUBE OF TUNGSTEN AND 26% RHENIUM WITHIN THE HOUSING, A JUNCTION BLOCK CLOSING SAID TUBE AT THE TOP AND HAVING AN INTERIOR RECESS IN THE CENTER, A TUNGSTEN WIRE POSITIONED CENTRALLY WITH RESPECT TO SAID TUBE AND FITTED INTO SAID RECESS OF THE JUNCTION BLOCK, GRANULAR REFRACTORY MATERIAL SEALING THE BOTTOM OF THE HOUSING AND TUBE AND MAINTAINING THE HOUSING, TUBE AND WIRE IN SPACED RELATIONSHIP AND COPPER
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) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |