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US3308801A Expired / Lapsed US ⏱️ 0.0 years remaining

Capacitive discharge ignition system

Assignee: Westinghouse Electric Corp
•
Filing: 1964-07-23
•
Granted: 1967-03-14
•
Expires: 1984-07-23
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Abstract

No abstract record available.

Inventors

  • 👤 Jr John W Motto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 07:13
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/06; F02P3/08; F02P3/0807; F02P3/0838

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 215 words
AN IGNITION SYSTEM COMPRISING: A GATE CONTROLLED SWITCH HAVING AN ANODE-CATHODE CIRCUIT AND A GATE CIRCUIT; A FIRST CAPACITOR DEVICE CONNECTED IN THE ANODE-CATHODE CIRCUIT OF SAID GATE CONTROLLED SWITCH; A FIRST CHARGING CIRCUIT CONNECTED IN THE ANODE-CATHODE CIRCUIT OF SAID GATE CONTROLLED SWITCH; A SECOND CAPACITOR DEVICE CONNECTED IN THE GATE CIRCUIT OF SAID GATE CONTROLLED SWITCH; A SECOND CHARGING CIRCUIT INCLUDING AN INDUCTIVE DEVICE CONNECTED TO SAID SECOND CAPACITIVE DEVICE FOR CHARGING SAID SECOND CAPACITIVE DEVICE; SWITCH MEANS CONNECTED TO SAID SECOND CAPACITIVE DEVICE, SAID SECOND CAPACITIVE DEVICE BEING DISCHARGED BY THE CLOSING OF SAID SWITCH MEANS TO RENDER SAID GATE CONTROLLED SWITCH NON-CONDUCTIVE AND INDUCE A FIRST VOLTAGE IN SAID FIRST CHARGING CIRCUIT, SAID FIRST CAPACITIVE DEVICE BEING CHARGED TO SAID FIRST VOLTAGE; CONVERSION MEANS INCLUDING A PRIMARY COIL CONNECTED TO SAID FIRST CAPACITIVE DEVICE AND A SECONDARY COIL; UPON OPENING SAID SWITCH MEANS A SECOND VOLTAGE BEING INDUCED IN SAID INDUCTIVE DEVICE OF SAID SECOND CHARGING CIRCUIT AND BEING APPLIED TO THE GATE ELECTRODE OF SAID GATE CONTROLLED SWITCH TO RENDER SAID GATE CONTROLLED SWITCH CONDUCTIVE, WITH SAID FIRST CAPACITIVE DEVICE BEING DISCHARGED THROUGH SAID GATE CONTROLLED SWITCH TO APPLY SAID FIRST VOLTAGE TO THE PRIMARY COIL OF SAID CONVERSION MEANS AND INDUCE AN OUTPUT SPARK VOLTAGE IN SAID SECONDARY COIL.
Claim 2
Dependent Claim 215 words
AN IGNITION SYSTEM COMPRISING: A GATE CONTROLLED SWITCH HAVING AN ANODE-CATHODE CIRCUIT AND A GATE CIRCUIT; A FIRST CAPACITOR DEVICE CONNECTED IN THE ANODE-CATHODE CIRCUIT OF SAID GATE CONTROLLED SWITCH; A FIRST CHARGING CIRCUIT CONNECTED IN THE ANODE-CATHODE CIRCUIT OF SAID GATE CONTROLLED SWITCH; A SECOND CAPACITOR DEVICE CONNECTED IN THE GATE CIRCUIT OF SAID GATE CONTROLLED SWITCH; A SECOND CHARGING CIRCUIT INCLUDING AN INDUCTIVE DEVICE CONNECTED TO SAID SECOND CAPACITIVE DEVICE FOR CHARGING SAID SECOND CAPACITIVE DEVICE; SWITCH MEANS CONNECTED TO SAID SECOND CAPACITIVE DEVICE, SAID SECOND CAPACITIVE DEVICE BEING DISCHARGED BY THE CLOSING OF SAID SWITCH MEANS TO RENDER SAID GATE CONTROLLED SWITCH NON-CONDUCTIVE AND INDUCE A FIRST VOLTAGE IN SAID FIRST CHARGING CIRCUIT, SAID FIRST CAPACITIVE DEVICE BEING CHARGED TO SAID FIRST VOLTAGE; CONVERSION MEANS INCLUDING A PRIMARY COIL CONNECTED TO SAID FIRST CAPACITIVE DEVICE AND A SECONDARY COIL; UPON OPENING SAID SWITCH MEANS A SECOND VOLTAGE BEING INDUCED IN SAID INDUCTIVE DEVICE OF SAID SECOND CHARGING CIRCUIT AND BEING APPLIED TO THE GATE ELECTRODE OF SAID GATE CONTROLLED SWITCH TO RENDER SAID GATE CONTROLLED SWITCH CONDUCTIVE, WITH SAID FIRST CAPACITIVE DEVICE BEING DISCHARGED THROUGH SAID GATE CONTROLLED SWITCH TO APPLY SAID FIRST VOLTAGE TO THE PRIMARY COIL OF SAID CONVERSION MEANS AND INDUCE AN OUTPUT SPARK VOLTAGE IN SAID SECONDARY COIL.

References Cited (Backward Citations)

US2847489A Cited
US3045148A Cited
US3078391A Cited
CH368019A Cited
US3184653A Cited
US3134048A Cited
US3169212A Cited
US3213320A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-03-13 1970-09-12 1971-03-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-03-13 1974-09-12 1975-03-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-03-13 1978-09-12 1979-03-14 $7700.00 Window Closed / Lapsed

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