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US4969848A Expired / Lapsed US ⏱️ 0.0 years remaining

Tank-built-in outboard motor

Assignee: Yamaha Marine Co Ltd
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Filing: 1989-05-26
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Granted: 1990-11-13
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Expires: 2009-05-26
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Abstract

Abstract Two embodiments of power head constructions for outboard motors wherein a liquid supply system for the internal combustion engine of the power head is contained within its protective cowling. This liquid supply system includes first and second spaced liquid tanks that are interconnected by a conduit for flow therebetween.

Inventors

  • 👤 Atsushi Isogawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:08
CPC Classifications
B; B63; B63H; B63H21/00; B63H21/38; B63H20/00; B63H20/001; B63H20/32; F; F02; F02B; F02B61/00; F02B61/04; F02B61/045; F02F; F02F7/00; F02F7/0085; F02F2007/0092

Claims Analysis

Total Claims: 31
Claim 1
Independent Claim 140 words
In an outboard motor having a power head comprised of an internal combustion engine, and a protective cowling enclosing at least in part said internal combustion engine, the improvement comprising a liquid supply system for said engine and contained within said protective cowling comprising a first liquid tank located at a first area within said protective cowling and adapted to contain a first volume of fluid for said engine, a second liquid tank located at a second area within said protective cowling and adapted to contain a second volume of fluid for the engine, means communicating said first liquid tank with said second liquid tank, and means including filter means spaced from and separate from each of said liquid tanks for communicating said liquid tanks with the engine for delivering filtered fluid to the engine from each of said tanks.
Claim 2
Dependent Claim 140 words
In an outboard motor having a power head comprised of an internal combustion engine, and a protective cowling enclosing at least in part said internal combustion engine, the improvement comprising a liquid supply system for said engine and contained within said protective cowling comprising a first liquid tank located at a first area within said protective cowling and adapted to contain a first volume of fluid for said engine, a second liquid tank located at a second area within said protective cowling and adapted to contain a second volume of fluid for the engine, means communicating said first liquid tank with said second liquid tank, and means including filter means spaced from and separate from each of said liquid tanks for communicating said liquid tanks with the engine for delivering filtered fluid to the engine from each of said tanks.
Claim 3
Dependent Claim 39 words
In an outboard motor as set forth in claim 1 wherein the means for supplying the fluid from the liquid tanks to the engine comprises a conduit extending only directly from one of the liquid tanks to the engine.
Claim 4
Dependent Claim 26 words
In an outboard motor as set forth in claim 2 wherein the outboard motor is supported for tilt and trim movement relative to the associated watercraft.
Claim 5
Dependent Claim 28 words
In an outboard motor as set forth in claim 3 wherein the liquid tank that communicates directly with the engine is the forwardmost tank in the protective cowling.
Claim 6
Dependent Claim 22 words
In an outboard motor as set forth in claim 4 further including means providing a full opening to the other liquid tank.
Claim 7
Dependent Claim 38 words
In an outboard motor as set forth in claim 1 wherein at least one of the liquid tanks has a translucent portion disposed adjacent to a transparent opening in the protective cowling for viewing the liquid level therein.
Claim 8
Dependent Claim 149 words
In an outboard motor having a power head comprised of an internal combustion engine, and a protective cowling enclosing at least in part said internal combustion engine, the improvement comprising a liquid supply system for said engine and contained within said protective cowling comprising a first liquid tank located at a first area within said protective cowling and adapted to contain a first volume of fluid for said engine, a second liquid tank located at a second area within said protective cowling and adapted to contain a second volume of fluid for the engine, means communicating said first liquid tank with said second liquid tank comprising a lower conduit interconnecting the lower ends of said tanks and an upper conduit interconnecting the upper ends of said tanks and means for communicating at least one of the said liquid tanks with the engine for delivering the fluid to the engine.
Claim 9
Dependent Claim 149 words
In an outboard motor having a power head comprised of an internal combustion engine, and a protective cowling enclosing at least in part said internal combustion engine, the improvement comprising a liquid supply system for said engine and contained within said protective cowling comprising a first liquid tank located at a first area within said protective cowling and adapted to contain a first volume of fluid for said engine, a second liquid tank located at a second area within said protective cowling and adapted to contain a second volume of fluid for the engine, means communicating said first liquid tank with said second liquid tank comprising a lower conduit interconnecting the lower ends of said tanks and an upper conduit interconnecting the upper ends of said tanks and means for communicating at least one of the said liquid tanks with the engine for delivering the fluid to the engine.
Claim 10
Dependent Claim 39 words
In an outboard motor as set forth in claim 7 wherein the means for supplying the fluid from the liquid tanks to the engine comprises a conduit extending only directly from one of the liquid tanks to the engine.
Claim 11
Dependent Claim 26 words
In an outboard motor as set forth in claim 8 wherein the outboard motor is supported for tilt and trim movement relative to the associated watercraft.
Claim 12
Dependent Claim 28 words
In an outboard motor as set forth in claim 9 wherein the liquid tank that communicates directly with the engine is the forwardmost tank in the protective cowling.
Claim 13
Dependent Claim 22 words
In an outboard motor as set forth in claim 10 further including means providing a fill opening to the other liquid tank.
Claim 14
Dependent Claim 38 words
In an outboard motor as set forth in claim 11 wherein at least one of the liquid tanks has a translucent portion disposed adjacent to a transparent opening in the protective cowling for viewing the liquid level therein.
Claim 15
Dependent Claim 29 words
In an outboard motor as set forth in claim 12 wherein the engine is provided with a lubricating system and the liquid supply system contains lubricant for the engine.
Claim 16
Dependent Claim 29 words
In an outboard motor as set forth in claim 1 wherein the engine is provided with a lubricating system and the liquid supply system contains lubricant for the engine.
Claim 17
Dependent Claim 171 words
In an outboard motor having a power head comprised of an internal combustion engine having a cylinder block and a crankcase, and a protective cowling enclosing at least in part said internal combustion engine, said protective cowling having a front face and a rear face, the improvement comprising a first liquid tank located within said protective cowling and adapted to contain a first volume of fluid for said engine, said first liquid tank being positioned forwardly of said cylinder block and said crankcase and contiguous to said front face of said protective cowling, a second liquid tank located at an area within said protective cowling spaced from said front face, adjacent said rear face of said protective cowling and on one side of said cylinder block and adapted to contain a second volume of said fluid for the engine, means communicating said first liquid tank with said second liquid tank, and means for communicating at least one of said liquid tanks with the engine for delivering said fluid to the engine.
Claim 18
Dependent Claim 171 words
In an outboard motor having a power head comprised of an internal combustion engine having a cylinder block and a crankcase, and a protective cowling enclosing at least in part said internal combustion engine, said protective cowling having a front face and a rear face, the improvement comprising a first liquid tank located within said protective cowling and adapted to contain a first volume of fluid for said engine, said first liquid tank being positioned forwardly of said cylinder block and said crankcase and contiguous to said front face of said protective cowling, a second liquid tank located at an area within said protective cowling spaced from said front face, adjacent said rear face of said protective cowling and on one side of said cylinder block and adapted to contain a second volume of said fluid for the engine, means communicating said first liquid tank with said second liquid tank, and means for communicating at least one of said liquid tanks with the engine for delivering said fluid to the engine.
Claim 19
Dependent Claim 39 words
In an outboard motor as set forth in claim 15 wherein the means for supplying the fluid from the liquid tanks to the engine comprises a conduit extending only directly from one of the liquid tanks to the engine.
Claim 20
Dependent Claim 26 words
In an outboard motor as set forth in claim 16 wherein the outboard motor is supported for tilt and trim movement relative to the associated watercraft.
Claim 21
Dependent Claim 24 words
In an outboard motor as set forth in claim 17 wherein the liquid tank that communicates directly with the engine is the first tank.
Claim 22
Dependent Claim 22 words
In an outboard motor as set forth in claim 18 further including means providing a fill opening to the second liquid tank.
Claim 23
Dependent Claim 35 words
In an outboard motor as set forth in claim 15 wherein the first liquid tank has a translucent portion disposed adjacent to a transparent opening in the protective cowling for viewing the liquid level therein.
Claim 24
Dependent Claim 42 words
In an outboard motor as set forth in claim 15 wherein the means for communicating the tanks with each other comprises a lower conduit interconnecting the lower ends of the tanks and an upper conduit interconnecting the upper ends of the tanks.
Claim 25
Dependent Claim 39 words
In an outboard motor as set forth in claim 21 wherein the means for supplying the fluid from the liquid tanks to the engine comprises a conduit extending only directly from one of the liquid tanks to the engine.
Claim 26
Dependent Claim 26 words
In an outboard motor as set forth in claim 22 wherein the outboard motor is supported for tilt and trim movement relative to the associated watercraft.
Claim 27
Dependent Claim 24 words
In an outboard motor as set forth in claim 23 wherein the liquid tank that communicates directly with the engine is the first tank.
Claim 28
Dependent Claim 22 words
In an outboard motor as set forth in claim 24 further including means providing a fill opening to the second liquid tank.
Claim 29
Dependent Claim 35 words
In an outboard motor as set forth in claim 25 wherein the first liquid tank has a translucent portion disposed adjacent to a transparent opening in the protective cowling for viewing the liquid level therein.
Claim 30
Dependent Claim 29 words
In an outboard motor as set forth in claim 26 wherein the engine is provide with a lubricating system and the liquid supply system contains lubricant for the engine.
Claim 31
Dependent Claim 29 words
In an outboard motor as set forth in claim 15 wherein the engine is provided with a lubricating system and the liquid supply system contains lubricant for the engine.

References Cited (Backward Citations)

US2935057A Cited
US4661076A Cited
US4689025A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-11-12 1994-05-14 1994-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-11-12 1998-05-14 1998-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-11-12 2002-05-14 2002-11-13 $7700.00 Window Closed / Lapsed

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