Patent US3588058A successfully refreshed from Google Patents.
US3588058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power valve arrangement
Assignee: Individual
•
Filing: 1968-12-23
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Granted: 1971-06-28
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Expires: 1988-12-23
Abstract
Abstract A CARBURETOR HAVING A FUEL BOWL OR RESERVOIR WITH A MAIN FUEL-METERING SYSTEM, INCLUDING A METERING RESTRICTION THEREFOR, IS PROVIDED WITH A SECOND PASSAGE MEANS IN PARALLEL WITH THE METERING RESTRICTION, THE SECOND PASSAGE MEANS IS NORMALLY MAINTAINED CLOSED BY A WEIGHTED VALVE MEMBER RESPONSIVE TO THE VACUUM GENERATED AT THE VENTURI OF THE CARBURETOR INDUCTION PASSAGE, WHEN A VENTURI VACUUM OF SUFFICIENT MAGNITUDE IS REALIZED THE SECOND PASSAGE MEANS IS AT LEAST PARTIALLY OPENED PERMITTING ADDITIONAL QUANTITIES OF FUEL TO FLOW TO THE MAIN DISCHARGE NOZZLE THEREBY ENRICHING THE FUEL-AIR RATIO OF THE COMBUSTIBLE MIXTURE FLOWING INTO THE ENGINE INTAKE MANIFOLD.
Inventors
- 👤 Alvin S Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:45
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M7/133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |