Patent US1162883A successfully refreshed from Google Patents.
Patent US3102983A successfully refreshed from Google Patents.
US3102983A
Expired / Lapsed
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Automatic servo disconnect circuit
Assignee: ARNOUX CORP
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Filing: 1959-03-10
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Granted: 1963-09-03
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Expires: 1979-03-10
Abstract
No abstract record available.
Inventors
- 👤 Wheeler M Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:26
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1427
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A CLOSED LOOP FOLLOWUP SERVO SYSTEM, APPARATUS FOR AUTOMATICALLY DISCONNECTING THE SERVO LOOP AND LOCKING THE SERVO OUTPUT TO THE EXISTING OUTPUT LEVEL, THE APPARATUS COMPRISING A DIRECT CURRENT AMPLIFIER, A CAPACITOR COUPLING THE OUTPUT TO THE INPUT OF THE AMPLIFIER, A FIRST DIODE IN SERIES WITH THE INPUT OF THE AMPLIFIER FOR COUPLING A CONTROL SIGNAL TO THE AMPLIFIER INPUT, MEANS FOR NORMALLY BIASING THE SERIES DIODE IN A CONDUCTIVE STATE INCLUDING A NORMALLY CONDUCTIVE GAS DISCHARGE TUBE CONNECTED TO THE INPUT OF THE AMPLIFIER TO PROVIDE A CURRENT CONDUCTIVE PATH FOR THE FIRST DIODE, THE INPUT LEVEL OF THE AMPLIFIER CHANGING WITH CHANGES IN THE VOLTAGE LEVEL OF THE CONTROL SIGNAL, MEANS RESPONSIVE TO THE CONTROL SIGNAL FOR EXTINGUISHING THE DISCHARGE TUBE WHEN THE CONTROL SIGNAL VARIES IN VOLTAGE ABOVE AND BELOW PREDETERMINED LIMITS, A FIRST DIODE CLAMPING CIRCUIT COUPLED TO THE SERIES DIODE FOR LIMITING THE NEGATIVE SWING OF THE CONTROL SIGNAL INPUT TO THE AMPLIFIER, A SECOND DIODE CLAMPING CIRCUIT
Claim 2
Dependent Claim
165 words
IN A CLOSED LOOP FOLLOWUP SERVO SYSTEM, APPARATUS FOR AUTOMATICALLY DISCONNECTING THE SERVO LOOP AND LOCKING THE SERVO OUTPUT TO THE EXISTING OUTPUT LEVEL, THE APPARATUS COMPRISING A DIRECT CURRENT AMPLIFIER, A CAPACITOR COUPLING THE OUTPUT TO THE INPUT OF THE AMPLIFIER, A FIRST DIODE IN SERIES WITH THE INPUT OF THE AMPLIFIER FOR COUPLING A CONTROL SIGNAL TO THE AMPLIFIER INPUT, MEANS FOR NORMALLY BIASING THE SERIES DIODE IN A CONDUCTIVE STATE INCLUDING A NORMALLY CONDUCTIVE GAS DISCHARGE TUBE CONNECTED TO THE INPUT OF THE AMPLIFIER TO PROVIDE A CURRENT CONDUCTIVE PATH FOR THE FIRST DIODE, THE INPUT LEVEL OF THE AMPLIFIER CHANGING WITH CHANGES IN THE VOLTAGE LEVEL OF THE CONTROL SIGNAL, MEANS RESPONSIVE TO THE CONTROL SIGNAL FOR EXTINGUISHING THE DISCHARGE TUBE WHEN THE CONTROL SIGNAL VARIES IN VOLTAGE ABOVE AND BELOW PREDETERMINED LIMITS, A FIRST DIODE CLAMPING CIRCUIT COUPLED TO THE SERIES DIODE FOR LIMITING THE NEGATIVE SWING OF THE CONTROL SIGNAL INPUT TO THE AMPLIFIER, A SECOND DIODE CLAMPING CIRCUIT
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |