US3270547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermocouple calibration system
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-08-12
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Granted: 1966-09-06
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Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Macritchie
- 👤 George E Conklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:07
CPC Classifications
G; G01; G01K; G01K15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD FOR CALIBRATING THE THERMOCOUPLES WHICH COMPRISES IMMERSING THE HOT JUNCTION OF A THERMOCOUPLE TO BE TESTED IN AN ACCURATELY KNOWN TEMPERATURE STANDARD, IMMERSING THE COOL JUNCTION IN A SECOND, ACCURATELY KNOWN TEMPERATURE STANDARD, THEREBY GENERATING AN ELECTRIC POTENTIAL SIGNAL CORRESPONDING TO THE DIFFERENTIAL TEMPERATURE OF THE SAID STANDARDS; PASSING THE SAID GENERATED ELECTRICAL POTENTIAL SIGNAL THROUGH A POTENTIOMETRIC METER; INTRODUCING A REFERENCE ELECTRICAL POTENTIAL SIGNAL IN SAID POTENTIOMETRIC METER, SAID REFERENCE ELECTRICAL POTENTIAL SIGNAL HAVING A VALUE CORRESPONDING TO THAT PRODUCED UNDER THE SAME TEMPERATURE DIFFERENTIAL BY A STANDARD THERMOCOUPLED OF THE SAME TYPE AS THE SAID THERMOCOUPLE BEING TESTED; TAKING THE ELECTRICAL DIFFERENCE BETWEEN SAID GENERATED ELECTRICAL POTENTIAL SIGNAL AND SAID REFERENCE ELECTRICAL POTENTIAL SIGNAL; AMPLIFYING THE RESULTING ELECTRICAL POTENTIAL DIFFERENCE SIGNAL AND THEN RECORDING THE SAID ELECTRICAL POTENTIAL DIFFERENCE SIGNAL.
Claim 2
Independent Claim
134 words
A METHOD FOR CALIBRATING THE THERMOCOUPLES WHICH COMPRISES IMMERSING THE HOT JUNCTION OF A THERMOCOUPLE TO BE TESTED IN AN ACCURATELY KNOWN TEMPERATURE STANDARD, IMMERSING THE COOL JUNCTION IN A SECOND, ACCURATELY KNOWN TEMPERATURE STANDARD, THEREBY GENERATING AN ELECTRIC POTENTIAL SIGNAL CORRESPONDING TO THE DIFFERENTIAL TEMPERATURE OF THE SAID STANDARDS; PASSING THE SAID GENERATED ELECTRICAL POTENTIAL SIGNAL THROUGH A POTENTIOMETRIC METER; INTRODUCING A REFERENCE ELECTRICAL POTENTIAL SIGNAL IN SAID POTENTIOMETRIC METER, SAID REFERENCE ELECTRICAL POTENTIAL SIGNAL HAVING A VALUE CORRESPONDING TO THAT PRODUCED UNDER THE SAME TEMPERATURE DIFFERENTIAL BY A STANDARD THERMOCOUPLED OF THE SAME TYPE AS THE SAID THERMOCOUPLE BEING TESTED; TAKING THE ELECTRICAL DIFFERENCE BETWEEN SAID GENERATED ELECTRICAL POTENTIAL SIGNAL AND SAID REFERENCE ELECTRICAL POTENTIAL SIGNAL; AMPLIFYING THE RESULTING ELECTRICAL POTENTIAL DIFFERENCE SIGNAL AND THEN RECORDING THE SAID ELECTRICAL POTENTIAL DIFFERENCE SIGNAL.
References Cited (Backward Citations)
US1791563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |