US3289462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for analyzing operation of spark ignition engine
Assignee: Sinclair Research Inc
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Filing: 1964-04-24
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Granted: 1966-12-06
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Expires: 1984-04-24
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang J Wostl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:50
CPC Classifications
F; F02; F02P; F02P11/00; F02P11/06; F02D; F02D41/00; F02D41/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
IN COMBINATION WITH A COMBUSTION CHAMBER ADAPTED TO RECEIVE A FUEL AND IGNITION MEANS FOR IGNITING SAID FUEL INCLUDING SPARK DISCHARGE MEANS ARRANGED TO DISCHARGE WITHIN SAID CHAMBER AND PULSE DELIVERY MEANS ADAPTED TO DELIVER A VOLTAGE PULSE TO SAID SPARK DISCHARGE MEANS WHEREBY SAID SPARK DISCHARGE MEANS SPARKS AND IGNITES SAID FUEL, AN APPARATUS FOR ANALYZING THE OPERATIONAL CHARACTERISTICS OF SAID SPARK DISCHARGE MEANS WHICH COMPRISES A FIRST PULSE TRANSMISSION CIRCUIT HAVING AN INPUT COUPLED WITH SAID IGNITION MEANS WHEREBY TO IMPRESS ON SAID FIRST CIRCUIT AN INITIAL VOLTAGE SIGNAL FOR EACH VOLTAGE PULSE TO SAID SPARK DISCHARGE MEANS, FIRST COMPONENT MEANS IN SAID FIRST TRANSMISSION CIRCUIT ADAPTED TO DELAY TRANSMISSION OF SAID INITIAL SIGNAL FOR A PERIOD OF TIME LESS THEN THE TIME BETWEEN EACH VOLTAGE PULSE, A SECOND TRANSMISSION CIRCUIT INCLUDING MEANS ARRANGED IN SAID CHAMBER TO SENSE THE EXISTENCE THEREIN OF IGNITION OF SAID FUEL, AND MEANS FOR DEVELOPING A CHARACTERISTIC ELECTRICAL PULSE WHEN SAID DESIRED CHARACTERISTICS IS PRESENT IN SAID CHAMBER, SECOND COMPONENT MEANS IN SAID SECOND TRANSMISSION CIRCUIT ADAPTED TO PRODUCE AN OUTPUT SIGNAL CORRESPONDING TO SAID ELECTRICCAL PULSE, A COUNTING CIRCUIT INCLUDING MEANS FOR COUNTING
Claim 2
Dependent Claim
192 words
IN COMBINATION WITH A COMBUSTION CHAMBER ADAPTED TO RECEIVE A FUEL AND IGNITION MEANS FOR IGNITING SAID FUEL INCLUDING SPARK DISCHARGE MEANS ARRANGED TO DISCHARGE WITHIN SAID CHAMBER AND PULSE DELIVERY MEANS ADAPTED TO DELIVER A VOLTAGE PULSE TO SAID SPARK DISCHARGE MEANS WHEREBY SAID SPARK DISCHARGE MEANS SPARKS AND IGNITES SAID FUEL, AN APPARATUS FOR ANALYZING THE OPERATIONAL CHARACTERISTICS OF SAID SPARK DISCHARGE MEANS WHICH COMPRISES A FIRST PULSE TRANSMISSION CIRCUIT HAVING AN INPUT COUPLED WITH SAID IGNITION MEANS WHEREBY TO IMPRESS ON SAID FIRST CIRCUIT AN INITIAL VOLTAGE SIGNAL FOR EACH VOLTAGE PULSE TO SAID SPARK DISCHARGE MEANS, FIRST COMPONENT MEANS IN SAID FIRST TRANSMISSION CIRCUIT ADAPTED TO DELAY TRANSMISSION OF SAID INITIAL SIGNAL FOR A PERIOD OF TIME LESS THEN THE TIME BETWEEN EACH VOLTAGE PULSE, A SECOND TRANSMISSION CIRCUIT INCLUDING MEANS ARRANGED IN SAID CHAMBER TO SENSE THE EXISTENCE THEREIN OF IGNITION OF SAID FUEL, AND MEANS FOR DEVELOPING A CHARACTERISTIC ELECTRICAL PULSE WHEN SAID DESIRED CHARACTERISTICS IS PRESENT IN SAID CHAMBER, SECOND COMPONENT MEANS IN SAID SECOND TRANSMISSION CIRCUIT ADAPTED TO PRODUCE AN OUTPUT SIGNAL CORRESPONDING TO SAID ELECTRICCAL PULSE, A COUNTING CIRCUIT INCLUDING MEANS FOR COUNTING
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |