Patent US2794574A successfully refreshed from Google Patents.
Patent US3179805A successfully refreshed from Google Patents.
US3179805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined radiometer and emissometer
Assignee: Barnes Engineering Co
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Filing: 1962-07-11
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Granted: 1965-04-20
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Expires: 1982-07-11
Abstract
No abstract record available.
Inventors
- 👤 Robert W Astheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:42
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A RADIOMETER COMPRISING A RADIATION DETECTOR WHICH TRANSFORMS RADIATION INTO ELECTRICAL SIGNALS IN THE FORM OF VOLTAGES, A REFERENCE RADIATION SOURCE, MEANS FOR ALTERNATELY APPLYING RADIATION TO SAID DETECTOR FROM THE OBJECT, THE TEMPERATURE OF WHICH IS TO BE MEASURED, AND FROM THE REFERENCE SOURCE, THE IMPROVEMENT WHICH COMPRISES, (A) MEANS FOR PRODUCING A VOLTAGE PROPOETIONAL TO THE RADIATION OF THE REFERENCE SOURCE AND FOR ADDING SAID VOLTAGE TO THE SIGNAL VOLTAGE FROM THE RADIATION DETECTOR, (B) A CURRENT INDICATING DEVICE, AND (C) A VARIABLE RESISTANCE IN SERIES WITH SAID VOLTAGES AND SAID CURRENT INDICATING DEVICE, SAID VARIABLE RESISTANCE HAVING AN INDICATOR DIAL WITH A LINEAR SCALE WHEREBY VARIATIONS OF SAID VARIABLE RESISTOR FROM FULL VALUE CHANGES OUTPUT INDICATIONS FROM THE CURRENT OUTPUT DEVICE IN PROPORTION TO EMISSIVITY OF THE OBJECT MEASURED BY THE RADIOMETER.
Claim 2
Dependent Claim
136 words
IN A RADIOMETER COMPRISING A RADIATION DETECTOR WHICH TRANSFORMS RADIATION INTO ELECTRICAL SIGNALS IN THE FORM OF VOLTAGES, A REFERENCE RADIATION SOURCE, MEANS FOR ALTERNATELY APPLYING RADIATION TO SAID DETECTOR FROM THE OBJECT, THE TEMPERATURE OF WHICH IS TO BE MEASURED, AND FROM THE REFERENCE SOURCE, THE IMPROVEMENT WHICH COMPRISES, (A) MEANS FOR PRODUCING A VOLTAGE PROPOETIONAL TO THE RADIATION OF THE REFERENCE SOURCE AND FOR ADDING SAID VOLTAGE TO THE SIGNAL VOLTAGE FROM THE RADIATION DETECTOR, (B) A CURRENT INDICATING DEVICE, AND (C) A VARIABLE RESISTANCE IN SERIES WITH SAID VOLTAGES AND SAID CURRENT INDICATING DEVICE, SAID VARIABLE RESISTANCE HAVING AN INDICATOR DIAL WITH A LINEAR SCALE WHEREBY VARIATIONS OF SAID VARIABLE RESISTOR FROM FULL VALUE CHANGES OUTPUT INDICATIONS FROM THE CURRENT OUTPUT DEVICE IN PROPORTION TO EMISSIVITY OF THE OBJECT MEASURED BY THE RADIOMETER.
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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |