US4617879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel and oil mixture producing device for two-cycle engines
Assignee: Yamaha Marine Co Ltd
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Filing: 1984-10-15
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Granted: 1986-10-21
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Expires: 2004-10-15
Abstract
Abstract A fuel/lubricant supply system for a two-cycle engine having a tank that is divided by an internal wall into a lubricant reservoir portion and fuel reservoir portion. An arrangement is provided for transferring a metered amount of lubricant from the lubricant reservoir portion into the fuel reservoir portion in response to the signal transmitted from a sensing device that senses the amount of fuel added to the fuel reservoir portion.
Inventors
- 👤 Atsushi Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:00
CPC Classifications
F; F01; F01M; F01M3/00; F01M3/02; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B61/00; F02B61/04; F02B61/045
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
66 words
A fuel/lubricant supply system for a two-cycle engine or the like comprising a fuel reservoir, a lubricant reservoir, measuring means for measuring the amount of fuel supplied to said fuel reservoir, and metering means for transferring an amount of lubricant from said lubricant reservoir to said fuel reservoir in proportion to the amount of fuel added to the fuel reservoir as measured by said measuring means.
Claim 2
Dependent Claim
66 words
A fuel/lubricant supply system for a two-cycle engine or the like comprising a fuel reservoir, a lubricant reservoir, measuring means for measuring the amount of fuel supplied to said fuel reservoir, and metering means for transferring an amount of lubricant from said lubricant reservoir to said fuel reservoir in proportion to the amount of fuel added to the fuel reservoir as measured by said measuring means.
Claim 3
Dependent Claim
42 words
A fuel/lubricant supply system as set forth in claim 1 wherein the metering means for transferring the lubricant from the lubricant reservoir to the fuel reservoir comprises a lubricant pump driven for a time determined by the measured amount of fuel added.
Claim 4
Dependent Claim
23 words
A fuel/lubricant suppy system as set forth in claim 1 wherein the fuel reservoir and lubricant reservoir are formed within a common container.
Claim 5
Dependent Claim
51 words
A fuel/lubricant supply system as set forth in claim 3 wherein the metering means for transferring the measured portion of lubricant from the lubricant reservoir to the fuel reservoir comprises a lubricant pump contained within the lubricant reservoir and driven for a time determined by the measured amount of fuel added.
Claim 6
Dependent Claim
19 words
A fuel/lubricant supply system as set forth in claim 4 wherein the measuring means comprises a fuel level device.
Claim 7
Dependent Claim
21 words
A fuel/lubricant supply system as set forth in claim 5 wherein the fuel level device is provided within the fuel reservoir.
Claim 8
Dependent Claim
19 words
A fuel/lubricant supply system as set forth in claim 1 wherein the measuring means comprises a fuel level device.
Claim 9
Dependent Claim
21 words
A fuel/lubricant supply system as set forth in claim 7 wherein the fuel level device is provided within the fuel reservoir.
Claim 10
Dependent Claim
112 words
A combined fuel/lubricant supply reservoir for a two-cycle engine or the like comprising a tank, wall means within said tank dividing said tank into a lubricant reservoir and a fuel reservoir, lubricant pump means contained within said lubricant reservoir, conduit means for connecting the output of said lubricant pump means into said fuel reservoir, measuring means for measuring the level of fuel in said fuel reservoir, and means responsive to the measuring of the addition of fuel to said fuel reservoir for operating said lubricant pump for a predetermined period of time for transferring a predetermined amount of lubricant to said fuel reservoir in proportion to the amount of fuel added thereto.
Claim 11
Dependent Claim
112 words
A combined fuel/lubricant supply reservoir for a two-cycle engine or the like comprising a tank, wall means within said tank dividing said tank into a lubricant reservoir and a fuel reservoir, lubricant pump means contained within said lubricant reservoir, conduit means for connecting the output of said lubricant pump means into said fuel reservoir, measuring means for measuring the level of fuel in said fuel reservoir, and means responsive to the measuring of the addition of fuel to said fuel reservoir for operating said lubricant pump for a predetermined period of time for transferring a predetermined amount of lubricant to said fuel reservoir in proportion to the amount of fuel added thereto.
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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) | 1989-10-20 | 1990-04-21 | 1990-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-20 | 1994-04-21 | 1994-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-20 | 1998-04-21 | 1998-10-21 | $7700.00 | Window Closed / Lapsed |