US3354399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplitude and polarity sensitive control system
Assignee: Automatic Timing and Controls Inc
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Filing: 1964-06-23
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Granted: 1967-11-21
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Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 Grover K Houpt
- 👤 Whittaker Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:06
CPC Classifications
G; G05; G05B; G05B1/00; G05B1/01; G05B1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A CONTROL SYSTEM FOR USE WITH A VARIABLE TRANSDUCER WHICH MODIFIES AN INPUT SIGNAL THERETO AS A FUNCTION OF A CHANGE IN CONDITION THEREIN TO PRODUCE AN OUTPUT SIGNAL, SAID SYSTEM COMPRISING: (A) A SOURCE OF A PREDETERMINED DC VOLTAGE, (B) MEANS COUPLED TO SAID SOURCE FOR PRODUCIANG IN RESPONSE THERETO AN AC SIGNAL WHOSE AMPLITUDE CORRESPONDS TO THE AMPLITUDE OF SAID DC VOLTAGE, SAID PRODUCING MEANS SUPPLYING SAID AC SIGNAL AS THE INPUT TO SAID TRANSDUCER, (C) MEANS ADAPTED TO BE COUPLED TO SAID TRANSDUCER FOR CONVERTING THE OUTPUT SIGNAL THEREOF TO AN OUTPUT DC VOLTAGE CORRESPONDING THERETO, AND (D) MEANS TO WHICH SAID PREDETERMINED DC VOLTAGE AND SAID OUTPUT DC VOLTAGE ARE APPLIED FOR CONTROLLING THE OPERATION OF AT LEAST ONE UTILIZATION CIRCUIT IN RESPONSE TO SAID APPLIED DC VOLTAGES.
Claim 2
Dependent Claim
132 words
A CONTROL SYSTEM FOR USE WITH A VARIABLE TRANSDUCER WHICH MODIFIES AN INPUT SIGNAL THERETO AS A FUNCTION OF A CHANGE IN CONDITION THEREIN TO PRODUCE AN OUTPUT SIGNAL, SAID SYSTEM COMPRISING: (A) A SOURCE OF A PREDETERMINED DC VOLTAGE, (B) MEANS COUPLED TO SAID SOURCE FOR PRODUCIANG IN RESPONSE THERETO AN AC SIGNAL WHOSE AMPLITUDE CORRESPONDS TO THE AMPLITUDE OF SAID DC VOLTAGE, SAID PRODUCING MEANS SUPPLYING SAID AC SIGNAL AS THE INPUT TO SAID TRANSDUCER, (C) MEANS ADAPTED TO BE COUPLED TO SAID TRANSDUCER FOR CONVERTING THE OUTPUT SIGNAL THEREOF TO AN OUTPUT DC VOLTAGE CORRESPONDING THERETO, AND (D) MEANS TO WHICH SAID PREDETERMINED DC VOLTAGE AND SAID OUTPUT DC VOLTAGE ARE APPLIED FOR CONTROLLING THE OPERATION OF AT LEAST ONE UTILIZATION CIRCUIT IN RESPONSE TO SAID APPLIED DC VOLTAGES.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |