US3929111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel feed system for recycling fuel
Assignee: Outboard Marine Corp
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Filing: 1974-12-05
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Granted: 1975-12-30
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Expires: 1994-12-05
Abstract
Abstract Disclosed herein is a fuel feeding system comprising a carburetor having fuel passage means communicating between a fuel nozzle and a fuel bowl and including a sharp-edged orifice, together with means for controllably admitting air into the fuel passage means. Also disclosed herein is a fuel feeding system in which ''''ends'''' or ''''drains'''' are recycled from the crankcase through a sharp-edged orifice into an engine cylinder.
Inventors
- 👤 Robert K Turner
- 👤 Edgar Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:16
CPC Classifications
F; F02; F02B; F02B33/00; F02B33/02; F02B33/04; F02M; F02M19/00; F02M19/02; F02M19/025; F02M3/00; F02M3/08; F02M33/00; F02M33/02; F02M33/04; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; Y; Y10; Y10S; Y10S123/00; Y10S123/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A two-cycle internal engine including a crankcase having a portion in which ''''drains'''' accumulate, a cylinder extending from said crankcase, a piston movable in said cylinder and relative to said crankcase, a transfer passage communicating, subject to piston operation, between said crankcase and said cylinder, a conduit communicating with said crankcase portion, valve means in said conduit preventing flow to said crankcase and permitting flow from said crankcase, said conduit communicating with said cylinder independently of said transfer passage.
Claim 2
Dependent Claim
79 words
A two-cycle internal engine including a crankcase having a portion in which ''''drains'''' accumulate, a cylinder extending from said crankcase, a piston movable in said cylinder and relative to said crankcase, a transfer passage communicating, subject to piston operation, between said crankcase and said cylinder, a conduit communicating with said crankcase portion, valve means in said conduit preventing flow to said crankcase and permitting flow from said crankcase, said conduit communicating with said cylinder independently of said transfer passage.
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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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |