US3404298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally sensitive compensating device
Assignee: KENTON ENGINEERING Corp
•
Filing: 1966-08-19
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Granted: 1968-10-01
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Expires: 1986-08-19
Abstract
No abstract record available.
Inventors
- 👤 Edward A Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:12
CPC Classifications
H; H03; H03L; H03L1/00; H03L1/02; H03L1/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
APPARATUS COMPRISING ELECTRICAL CIRCUITY HAVING A RESONANT FREQUENCY WHICH VARIES WITH VARIATIONS IN TEMPERATURE OF SAID CIRCUITRY, A THERMALLY RESPONSIVE TRANSDUCER MEANS CONNECTED TO SAID ELECTRICAL CIRCUITRY FOR OFFSETTING THE VARIATIONS ON THE RESONANT FREQUENCY WITH VARIATIONS IN THE TEMPERATURE OF SAID ELECTRICAL CIRCUITRY, SAID TRANSDUCER INCLUDES A VARIABLE CAPACITOR HAVING A PLURALITY OF SHAPED PLATES WITH A STATOR CONFIGURATION WHICH IS A FUNCTION OF VARIATIONS IN THE RESONANT FREQUENCY OF SAID ELECTRICAL CIRCUITRY, AND A THERMALLY RESPONSIVE ROTOR MEANS INTERMEDIATE TO SAID SHAPED PLATES FOR ALTERING THE CAPACITANCE OF SAID VARIABLE CAPACITOR AS A FUNCTION OF CHANGES IN THE TEMPERATURE OF SAID TRANSDUCERS MEANS.
Claim 2
Dependent Claim
105 words
APPARATUS COMPRISING ELECTRICAL CIRCUITY HAVING A RESONANT FREQUENCY WHICH VARIES WITH VARIATIONS IN TEMPERATURE OF SAID CIRCUITRY, A THERMALLY RESPONSIVE TRANSDUCER MEANS CONNECTED TO SAID ELECTRICAL CIRCUITRY FOR OFFSETTING THE VARIATIONS ON THE RESONANT FREQUENCY WITH VARIATIONS IN THE TEMPERATURE OF SAID ELECTRICAL CIRCUITRY, SAID TRANSDUCER INCLUDES A VARIABLE CAPACITOR HAVING A PLURALITY OF SHAPED PLATES WITH A STATOR CONFIGURATION WHICH IS A FUNCTION OF VARIATIONS IN THE RESONANT FREQUENCY OF SAID ELECTRICAL CIRCUITRY, AND A THERMALLY RESPONSIVE ROTOR MEANS INTERMEDIATE TO SAID SHAPED PLATES FOR ALTERING THE CAPACITANCE OF SAID VARIABLE CAPACITOR AS A FUNCTION OF CHANGES IN THE TEMPERATURE OF SAID TRANSDUCERS MEANS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |