US3774581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination poppet and reed valve
Assignee: Motors Liquidation Co
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Filing: 1972-10-04
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Granted: 1973-11-27
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Expires: 1992-10-04
Abstract
Abstract A combination poppet and reed valve consisting of a poppet valve with a flat-type head having a plurality of inlet apertures therethrough normally closed by a reed valve element.
Inventors
- 👤 J Lundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:59
CPC Classifications
F; F01; F01L; F01L3/00; F02; F02B; F02B33/00; F02B33/02; F02B33/06; F02B33/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
137 words
In a split cylinder internal combustion engine having an engine block means provided with an induction cylinder in communication with a combustion mixture inlet port having an annular bevelled valve seat therein, a combined poppet and reed valve reciprocally mounted in said engine block means in position to control the flow of said combustion mixture from said intake port to said induction cylinder, said combined poppet and reed valve having an elongated stem and a valve head, said valve head having an annular exterior bevelled seating portion adapted to cooperate with said annular bevelled valve seat, said valve head having a planar surface opposite said stem and axial extending passage means through said valve head and, a reed valve means secured to said valve head to cooperate with said planar surface to normally close said passage means.
Claim 2
Dependent Claim
137 words
In a split cylinder internal combustion engine having an engine block means provided with an induction cylinder in communication with a combustion mixture inlet port having an annular bevelled valve seat therein, a combined poppet and reed valve reciprocally mounted in said engine block means in position to control the flow of said combustion mixture from said intake port to said induction cylinder, said combined poppet and reed valve having an elongated stem and a valve head, said valve head having an annular exterior bevelled seating portion adapted to cooperate with said annular bevelled valve seat, said valve head having a planar surface opposite said stem and axial extending passage means through said valve head and, a reed valve means secured to said valve head to cooperate with said planar surface to normally close said passage means.
Claim 3
Dependent Claim
62 words
In a split cylinder internal combustion engine according to claim 1 wherein said passage means in said valve head consists of a plurality of circumferentially equally spaced apertures and said reed valve includes a corresponding number of flexible leaf portions to overlie said apertures, said reed valve being secured concentric to said stem on the planar flat surface of said valve head.
Claim 4
Dependent Claim
79 words
In a split cylinder internal combustion engine according to claim 1 wherein said passage neans in said valve head consists of a plurality of circumferentially equally spaced apertures through said valve head and wherein said reed valve means is provided with a corresponding number of flexible leaf portions to overlie said apertures and wherein said intake valve includes an annular stepped reed valve stop fixed to said valve head with said reed valve means sandwiched therebetween and concentric thereto.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |