US3353103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature responsive circuit
Assignee: The General Electric Company PLC
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Filing: 1964-04-30
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Granted: 1967-11-14
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Expires: 1984-04-30
Abstract
No abstract record available.
Inventors
- 👤 Berry Allan David
- 👤 Vucinic Dusan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:58
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H04B3/10; G; G01; G01K; G01K1/00; G01K1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A TEMPERATURE RESPONSIVE VARIABLE ATTENUATOR AND CONTROL CIRCUIT COMPRISING: FIRST AND SECOND TEMPERATURE CONTROLLED IMPEDANCES; MEANS INTERCONNECTING SAID IMPEDANCES IN SAID ATTENTUATOR SUCH THAT THE GAIN OF THE ATTENUATOR DEPENDS PRIMARLIY ON THE TEMPERATURE OF THE FIRST IMPEDANCE AND COMPENSATION FOR THE EFFECT ON SAID FIRST IMPEDANCE OF CHANGES IN AMBIENT TEMPERATURE IS EFFECTED BY SAID SECOND IMPEDANCE WHEN THE TEMPERATURE OF SAID FIRST IMPEDANCE HAS A FIRST NORMINAL VALUE; A CURRENT SUPPLY CIRCUIT FOR SUPPLYING A CURRENT OF VARIABLE MAGNITUDE; MEANS FOR UTILIZING SAID CURRENT TO HEAT SAID FIRST IMPEDANCE; A THIRD TEMPERATURE CONTROLLED IMPEDANCE; AND MEANS INTERCONNECTING SAID THIRD IMPEDANCE WITH SAID SUPPLY CIRCUIT SO THAT, WHEN THE CURRENT SUPPLIED BY SAID SUPPLY CIRCUIT HAS A NOMINAL VALUE SUCH THAT THE TEMPERATURE OF TH EFIRST IMPEDANCE HAS A SECOND NOMINAL VALUE DIFFERENT FROM SAID FIRST NOMINAL VALUE, THE VALUE OF SAID CURRENT VARIES WITH THE VALUE OF SAID THIRD IMPEDANCE, THEREBY TO EFFECT, IN CONJUNCTION WITH SAID SECOND IMPEDANCE, COMPENSATION FOR THE EFFECT OF CHANGES IN AMBIENT TEMPERATURE ON SAID FIRST IMPEDANCE WHEN THE TEMPERATURE OF SAID FIRST IMPEDANCE HAS SAID SECOND NOMINAL VALUE.
Claim 2
Dependent Claim
186 words
A TEMPERATURE RESPONSIVE VARIABLE ATTENUATOR AND CONTROL CIRCUIT COMPRISING: FIRST AND SECOND TEMPERATURE CONTROLLED IMPEDANCES; MEANS INTERCONNECTING SAID IMPEDANCES IN SAID ATTENTUATOR SUCH THAT THE GAIN OF THE ATTENUATOR DEPENDS PRIMARLIY ON THE TEMPERATURE OF THE FIRST IMPEDANCE AND COMPENSATION FOR THE EFFECT ON SAID FIRST IMPEDANCE OF CHANGES IN AMBIENT TEMPERATURE IS EFFECTED BY SAID SECOND IMPEDANCE WHEN THE TEMPERATURE OF SAID FIRST IMPEDANCE HAS A FIRST NORMINAL VALUE; A CURRENT SUPPLY CIRCUIT FOR SUPPLYING A CURRENT OF VARIABLE MAGNITUDE; MEANS FOR UTILIZING SAID CURRENT TO HEAT SAID FIRST IMPEDANCE; A THIRD TEMPERATURE CONTROLLED IMPEDANCE; AND MEANS INTERCONNECTING SAID THIRD IMPEDANCE WITH SAID SUPPLY CIRCUIT SO THAT, WHEN THE CURRENT SUPPLIED BY SAID SUPPLY CIRCUIT HAS A NOMINAL VALUE SUCH THAT THE TEMPERATURE OF TH EFIRST IMPEDANCE HAS A SECOND NOMINAL VALUE DIFFERENT FROM SAID FIRST NOMINAL VALUE, THE VALUE OF SAID CURRENT VARIES WITH THE VALUE OF SAID THIRD IMPEDANCE, THEREBY TO EFFECT, IN CONJUNCTION WITH SAID SECOND IMPEDANCE, COMPENSATION FOR THE EFFECT OF CHANGES IN AMBIENT TEMPERATURE ON SAID FIRST IMPEDANCE WHEN THE TEMPERATURE OF SAID FIRST IMPEDANCE HAS SAID SECOND NOMINAL VALUE.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |