Patent US3235731A successfully refreshed from Google Patents.
US3235731A
Expired / Lapsed
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Comparison microwave radiometer
Assignee: Motors Liquidation Co
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Filing: 1962-07-02
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Granted: 1966-02-15
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Theodore V Seling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:25
CPC Classifications
G; G01; G01K; G01K11/00; G01K11/006; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A MICROWAVE RADIOMETER FOR DETECTING THE PRESENCE OF BODIES RADIATING MICROWAVE ENERGY COMPRISING THE COMBINATION OF AN ANTENNA FOR PRODUCING A SIGNAL RELATED TO THE TEMPERATURE OF A BODY RADIATING MICROWAVE ENERGY THERETO, A SIGNAL REFERENCE SOURCE OF MICROWAVE ENERGY OF CONSTANT MAGNITUDE, RECEIVING MEANS HAVING AN INPUT AND AN OUTPUT AND ADAPTED TO PRODUCE AN OUTPUT SIGNAL CORRESPONDING TO THE DIFFERENCE BETWEEN TWO ALTERNATELY APPLIED INPUT SIGNALS, SWITCHING MEANS CONNECTED TO THE INPUT OF THE RECEIVING MEANS AND ADAPTED TO CYCLICALLY COUPLE THE INPUT ALTERNATELY TO THE ANTENNA AND THE REFERENCE SOURCE IN RESPECTIVELY HALF-CYCLES OF FIXED DURATION, ACTUATING MEANS CONNECTED TO THE REFERENCE SOURCE AND SYNCHRONIZED WITH THE SWITCHING MEANS TO INTERRUPT THE FLOW OF ENERGY FROM THE REFERENCE SOURCE TO THE RECEIVING MEANS OVER A PREDETERMINED PORTION OF THE HALF-CYCLE DURING WHICH THE SWITCHING MEANS COUPLES THE INPUT OF THE RECEIVING MEANS TO THE REFERENCE ENERGY SOURCE.
Claim 2
Dependent Claim
150 words
A MICROWAVE RADIOMETER FOR DETECTING THE PRESENCE OF BODIES RADIATING MICROWAVE ENERGY COMPRISING THE COMBINATION OF AN ANTENNA FOR PRODUCING A SIGNAL RELATED TO THE TEMPERATURE OF A BODY RADIATING MICROWAVE ENERGY THERETO, A SIGNAL REFERENCE SOURCE OF MICROWAVE ENERGY OF CONSTANT MAGNITUDE, RECEIVING MEANS HAVING AN INPUT AND AN OUTPUT AND ADAPTED TO PRODUCE AN OUTPUT SIGNAL CORRESPONDING TO THE DIFFERENCE BETWEEN TWO ALTERNATELY APPLIED INPUT SIGNALS, SWITCHING MEANS CONNECTED TO THE INPUT OF THE RECEIVING MEANS AND ADAPTED TO CYCLICALLY COUPLE THE INPUT ALTERNATELY TO THE ANTENNA AND THE REFERENCE SOURCE IN RESPECTIVELY HALF-CYCLES OF FIXED DURATION, ACTUATING MEANS CONNECTED TO THE REFERENCE SOURCE AND SYNCHRONIZED WITH THE SWITCHING MEANS TO INTERRUPT THE FLOW OF ENERGY FROM THE REFERENCE SOURCE TO THE RECEIVING MEANS OVER A PREDETERMINED PORTION OF THE HALF-CYCLE DURING WHICH THE SWITCHING MEANS COUPLES THE INPUT OF THE RECEIVING MEANS TO THE REFERENCE ENERGY SOURCE.
References Cited (Backward Citations)
US2698433A
Cited
US3056958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |