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US3720191A Expired / Lapsed US ⏱️ 0.0 years remaining

Acceleration enrichment circuitry for electronic fuel system

Assignee: Bendix Corp
•
Filing: 1971-01-25
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Granted: 1973-03-13
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Expires: 1991-01-25
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Abstract

Abstract A CIRCUIT IS DISCLOSED FOR GENERATION OF AN OUTPUT VOLTAGE SIGNAL HAVING A CHARACTERISTIC WHICH VARIES AS THE MAGNITUDE, AND RATE, OF CHANGE OF A SETTING OF A REMOTE CONTROL MEMBER. THE PRESENT CIRCUIT IS COMPRISED OF A SIGNAL RECEIVING AND PROCESSING CIRCUIT ADAPTED TO SUITABLY VARY A SIGNAL INDICATIVE OF INSTANTANEOUS CONTROL MEMBER SETTING, AND AN ANALOG SIGNAL GENERATING CIRCUIT RESPONSIVE TO THE FIRST-MENTIONED CIRCUIT FOR PRODUCING AN OUTPUT AND VOLTAGE SIGNAL HAVING AN AMPLITUDE PROPORTIONAL TO THE MAGNITUDE, AND RATE, OF CHANGE OF THE OUTPUT OF THE PROCESSING CIRCUIT. A FURTHER CIRCUIT IS PROVIDED TO PRODUCE A SINGLE SIGNAL OF FIXED MAGNITUDE AND VARIABLE DURATION SUITABLE FOR CONTROLLING A SINGLE PULSE CIRCUIT.

Inventors

  • 👤 T Rachel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 13:54
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/02; F02D41/04; F02D41/045; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40

Claims Analysis

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References Cited (Backward Citations)

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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) 1976-03-12 1976-09-11 1977-03-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-03-12 1980-09-11 1981-03-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-03-12 1984-09-11 1985-03-13 $7700.00 Window Closed / Lapsed

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