Patent US3848858A successfully refreshed from Google Patents.
US3848858A
Expired / Lapsed
US
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Velocity-actuated fuel control valve
Assignee: BUREN J VAN
•
Filing: 1973-04-27
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Granted: 1974-11-19
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Expires: 1993-04-27
Abstract
Abstract A velocity-actuated valve placed in the intake manifold of an internal combustion engine is described. It consists of a pivotally supported, spring-biased, semi-circular disc subjected to the impact velocity of the air stream for variable angular displacement.
Inventors
- 👤 Buren J Van
- 👤 K Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:08
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M19/00; F02M19/08; F02M19/10; Y; Y10; Y10S; Y10S261/00; Y10S261/56
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
In combination with the intake manifold of an internal combustion engine, said manifold having a fuel supply inlet and a Venturi portion, an independent valve assembly comprising a semicircular disc located in a sleeve and pivotally supported over a shaft transversely positioned in said sleeve, a coil spring wound aRound said shaft engaging at one end said disc and at the other end said sleeve, said assembly being adapted to be inserted in the intake manifold of an internal combustion engine.
Claim 2
Dependent Claim
81 words
In combination with the intake manifold of an internal combustion engine, said manifold having a fuel supply inlet and a Venturi portion, an independent valve assembly comprising a semicircular disc located in a sleeve and pivotally supported over a shaft transversely positioned in said sleeve, a coil spring wound aRound said shaft engaging at one end said disc and at the other end said sleeve, said assembly being adapted to be inserted in the intake manifold of an internal combustion engine.
Claim 3
Dependent Claim
28 words
The combination in accordance with clalim 1 wherein said sleeve is of such configuration as to conform to the shape of the Venturi portion of the intake manifold.
Claim 4
Dependent Claim
28 words
The combination in accordance with clalim 1 wherein said sleeve is of such configuration as to conform to the shape of the Venturi portion of the intake manifold.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |