US3233175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric tachometer with inductive discharge means
Assignee: Individual
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Filing: 1961-03-07
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Granted: 1966-02-01
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Expires: 1981-03-07
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Faria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:42
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/4802; G01P3/4807
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
APPARATUS FOR MEASURING THE SPEED OF AN INTERNAL COMBUSTION ENGINE HAVING AN ELECTRICAL IGNITION SYSTEM GENERATING OSCILLATORY PULSES COMPRISING, IN COMBINATION, A CIRCUIT BREAKER ADAPTED TO BE OPERATED IN TIMED RELATION WITH THE IGNITION SYSTEM OF A MOTOR, A RECTIFIER AND A CONDENSER IN SERIES SHUNTING SAID BREAKER AND CONNECTED TO RECEIVE SAID PULSES AND CHARGE THE CONDENSER FROM EACH ONE, A RESISTOR AND AN INDUCTOR SERIES CONNECTED ACROSS SAID CONDENSER SAID RESISTOR HAVING A VALUE THAT ENABLES DISCHARGE OF SAID CONDENSER AT SUCH A RATE THAT THE RE-
Claim 2
Dependent Claim
89 words
APPARATUS FOR MEASURING THE SPEED OF AN INTERNAL COMBUSTION ENGINE HAVING AN ELECTRICAL IGNITION SYSTEM GENERATING OSCILLATORY PULSES COMPRISING, IN COMBINATION, A CIRCUIT BREAKER ADAPTED TO BE OPERATED IN TIMED RELATION WITH THE IGNITION SYSTEM OF A MOTOR, A RECTIFIER AND A CONDENSER IN SERIES SHUNTING SAID BREAKER AND CONNECTED TO RECEIVE SAID PULSES AND CHARGE THE CONDENSER FROM EACH ONE, A RESISTOR AND AN INDUCTOR SERIES CONNECTED ACROSS SAID CONDENSER SAID RESISTOR HAVING A VALUE THAT ENABLES DISCHARGE OF SAID CONDENSER AT SUCH A RATE THAT THE RE-
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |