US3234430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition circuit for internal combustion engines which prevents ignition skipping
Assignee: Robert Bosch GmbH
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Filing: 1963-06-25
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Granted: 1966-02-08
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Expires: 1983-06-25
Abstract
No abstract record available.
Inventors
- 👤 Joerg Issler
- 👤 Gerhard Soehner
- 👤 Gerhard Lange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:28
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/005; F02P3/06; F02P3/08; F02P3/0807; F02P3/0838; F02P3/0876; F02P3/0884; F02P9/00; F02P9/002; F02P9/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A CAPACITIVE IGNITION CIRCUIT ARRANGEMENT FOR INTERNAL COMBUSTION ENGINES, INCLUDING AT LEAST ONE SPARK PLUG AND SWITCH MEANS FOR PERIODICALLY CLOSING AN OPERATIVE CIRCUIT FOR THE SPARK PLUG, IN COMBINATION, MAIN STORAGE CAPACITOR MEANS OPERATIVELY CONNECTED WITH SAID SPARK PLUG SUBJECT TO CONTROL BY SAID SWITCH MEANS; AT LEAST ONE INDEPENDENT AUXILIARY STORAGE CAPACITOR MEANS CONNECTED IN PARALLEL WITH SAID MAIN STORAGE CAPACITOR MEANS; CHOKE COIL MEANS CONNECTED BETWEEN SAID MAIN AND AUXILIARY STORAGE CAPACITOR MEANS FOR DELAYING DISCHARGE OF SAID AUXILIARY STORAGE CAPACITOR MEANS; AND MEANS FOR CHARGING SAID MAIN AND AUXILIARY STORAGE CAPACITOR MEANS TO A PREDETERMINED POTENTIAL, WHEREBY EACH TIME SAID SWITCH MEANS ESTABLISHES AN OPERATIVE CIRCUIT FOR SAID SPARK PLUG, SAID MAIN STORAGE CAPACITOR MEANS FIRST DISCHARGE THROUGH SAID OPERATIVE CIRCUIT AND THEREAFTER SAID AUXILIARY STORAGE CAPACITOR MEANS DISCHARGES INDEPENDENTLY AND SEPARATELY FROM SAID MAIN STORAGE CAPACITOR MEANS THROUGH SAID OPERATIVE CIRCUIT AT A TIME AFTER THE DISCHARGE OF SAID MAIN STORAGE CAPCITOR MEANS DETERMINED BY SAID CHOKE COIL MEANS.
Claim 2
Dependent Claim
165 words
IN A CAPACITIVE IGNITION CIRCUIT ARRANGEMENT FOR INTERNAL COMBUSTION ENGINES, INCLUDING AT LEAST ONE SPARK PLUG AND SWITCH MEANS FOR PERIODICALLY CLOSING AN OPERATIVE CIRCUIT FOR THE SPARK PLUG, IN COMBINATION, MAIN STORAGE CAPACITOR MEANS OPERATIVELY CONNECTED WITH SAID SPARK PLUG SUBJECT TO CONTROL BY SAID SWITCH MEANS; AT LEAST ONE INDEPENDENT AUXILIARY STORAGE CAPACITOR MEANS CONNECTED IN PARALLEL WITH SAID MAIN STORAGE CAPACITOR MEANS; CHOKE COIL MEANS CONNECTED BETWEEN SAID MAIN AND AUXILIARY STORAGE CAPACITOR MEANS FOR DELAYING DISCHARGE OF SAID AUXILIARY STORAGE CAPACITOR MEANS; AND MEANS FOR CHARGING SAID MAIN AND AUXILIARY STORAGE CAPACITOR MEANS TO A PREDETERMINED POTENTIAL, WHEREBY EACH TIME SAID SWITCH MEANS ESTABLISHES AN OPERATIVE CIRCUIT FOR SAID SPARK PLUG, SAID MAIN STORAGE CAPACITOR MEANS FIRST DISCHARGE THROUGH SAID OPERATIVE CIRCUIT AND THEREAFTER SAID AUXILIARY STORAGE CAPACITOR MEANS DISCHARGES INDEPENDENTLY AND SEPARATELY FROM SAID MAIN STORAGE CAPACITOR MEANS THROUGH SAID OPERATIVE CIRCUIT AT A TIME AFTER THE DISCHARGE OF SAID MAIN STORAGE CAPCITOR MEANS DETERMINED BY SAID CHOKE COIL MEANS.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |