US3072824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine ignition system
Assignee: Motors Liquidation Co
•
Filing: 1960-06-23
•
Granted: 1963-01-08
•
Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Brooks H Short
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:59
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/0407; F02P3/0435; F02P7/00; F02P7/06; F02P7/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN IGNITION SYSTEM FOR IGNITING THE COMBUSTIBLE MIXTURE IN AN INTERNAL COMBUSTION ENGINE COMPRISING, A SOURCE OF UNIDIRECTIONAL POWER, A TRANSISTOR HAVING EMITTER, BASE AND COLLECTOR ELECTRODE, AN IGNITION COIL HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A SPARK PLUG CONNECTED WITH THE SECONDARY WINDING OF SAID IGNITION COIL, A PULSE GENERATING DEVICE HAVING A COIL WINDING, A BREAKERLESS BIASING CIRCUIT FOR SAID TRANSISTOR NORMALLY RENDERING IT CONDUCTIVE BETWEEN EMITTER AND COLLECTOR ENERGIZED ACROSS SAID POWER SOURCE AND INCLUDING IN A SERIES CONNECTION THE EMITTER TO BASE CIRCUIT OF SAID TRANSISTOR, AND SAID COIL WINDING, AND MEANS CONNECTING THE COLLECTOR ELECTRODE OF SAID TRANSISTOR WITH THE PRIMARY WINDING OF SAID IGNITION COIL.
Claim 2
Dependent Claim
113 words
AN IGNITION SYSTEM FOR IGNITING THE COMBUSTIBLE MIXTURE IN AN INTERNAL COMBUSTION ENGINE COMPRISING, A SOURCE OF UNIDIRECTIONAL POWER, A TRANSISTOR HAVING EMITTER, BASE AND COLLECTOR ELECTRODE, AN IGNITION COIL HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A SPARK PLUG CONNECTED WITH THE SECONDARY WINDING OF SAID IGNITION COIL, A PULSE GENERATING DEVICE HAVING A COIL WINDING, A BREAKERLESS BIASING CIRCUIT FOR SAID TRANSISTOR NORMALLY RENDERING IT CONDUCTIVE BETWEEN EMITTER AND COLLECTOR ENERGIZED ACROSS SAID POWER SOURCE AND INCLUDING IN A SERIES CONNECTION THE EMITTER TO BASE CIRCUIT OF SAID TRANSISTOR, AND SAID COIL WINDING, AND MEANS CONNECTING THE COLLECTOR ELECTRODE OF SAID TRANSISTOR WITH THE PRIMARY WINDING OF SAID IGNITION COIL.
References Cited (Backward Citations)
US2353527A
Cited
US2474550A
Cited
US2490960A
Cited
US2852589A
Cited
FR1137949A
Cited
US2953719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |