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US4496019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offroad auto tricycle
Assignee: Yamaha Motor Co Ltd
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Filing: 1982-06-18
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Granted: 1985-01-29
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Expires: 2002-06-18
Abstract
Abstract An offroad auto tricycle embodying an improved air inlet to prevent the ingestion of foreign material and particularly water into the engine induction system. The air inlet device includes an elongated air inlet tube that has its inlet end positioned in proximity to and beneath the forwardmost portion of the seat for protecting the air inlet from foreign matter.
Inventors
- 👤 Ko Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:16
CPC Classifications
B; B62; B62K; B62K5/00; B62K5/02; B62K5/027
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
167 words
In an induction system for an off the road vehicle having a pair of driven rear wheels and at least one dirigible front wheel, an engine positioned continuous to said rear wheels and having a rearwardly facing induction system inlet, a seat extending forwardly from said rear wheels, and an air cleaner positioned in proximity to and to the rear of said engine and said induction system inlet and contiguous to said rear wheels, the improvement comprising an inlet device comprising an elongated tube means terminating at an outlet end rearwardly of the engine and communicating with a forwardly facing inlet of said air cleaner for supplying air to said air cleaner from an inlet end forwardly of the engine and disposed in a protected area contiguous to the front of said vehicle, said inlet end being disposed so that foreign materials will be precluded from entry thereto, an outlet from said air cleaner, and conduit means connecting said air cleaner outlet with said induction system inlet.
Claim 2
Dependent Claim
167 words
In an induction system for an off the road vehicle having a pair of driven rear wheels and at least one dirigible front wheel, an engine positioned continuous to said rear wheels and having a rearwardly facing induction system inlet, a seat extending forwardly from said rear wheels, and an air cleaner positioned in proximity to and to the rear of said engine and said induction system inlet and contiguous to said rear wheels, the improvement comprising an inlet device comprising an elongated tube means terminating at an outlet end rearwardly of the engine and communicating with a forwardly facing inlet of said air cleaner for supplying air to said air cleaner from an inlet end forwardly of the engine and disposed in a protected area contiguous to the front of said vehicle, said inlet end being disposed so that foreign materials will be precluded from entry thereto, an outlet from said air cleaner, and conduit means connecting said air cleaner outlet with said induction system inlet.
Claim 3
Dependent Claim
24 words
In an induction system as set forth in claim 1 wherein the inlet device inlet end terminates beneath the forwardmost portion of the seat.
Claim 4
Dependent Claim
19 words
In an induction system as set forth in claim 1 wherein the inlet device comprises an elongated flexible tubing.
Claim 5
Dependent Claim
25 words
In an induction system as set forth in claim 3 wherein the inlet device inlet end is positioned beneath the forwardmost portion of the seat.
Claim 6
Dependent Claim
26 words
In an induction system as set forth in claim 4 wherein the inlet device inlet end faces the underside of the forwardmost portion of the seat.
Claim 7
Dependent Claim
171 words
In an induction system for an off the road vehicle having a pair of driven rear wheels and at least one dirigible front wheel, an engine positioned contiguous to said rear wheels, a seat extending forwardly from said rear wheels, and an air cleaner positioned in proximity to said engine and contiugous to said rear wheels, the improvement comprising an inlet device comprising an elongated flexible tube means terminating at its outlet end in said air cleaner for supplying air to said air cleaner from an inlet end disposed in a protected area contiguous to the front of said vehicle, said inlet end being disposed so that foreign materials will be precluded from entry thereto, said seat comprising a cushion portion and a base plate portion, the forwardmost portion of said base plate portion being spaced from said cushion portion to define a space with said inlet device inlet end being in communication with said space and being positioned therein and facing the underside of the forwardmost portion of said seat.
Claim 8
Dependent Claim
171 words
In an induction system for an off the road vehicle having a pair of driven rear wheels and at least one dirigible front wheel, an engine positioned contiguous to said rear wheels, a seat extending forwardly from said rear wheels, and an air cleaner positioned in proximity to said engine and contiugous to said rear wheels, the improvement comprising an inlet device comprising an elongated flexible tube means terminating at its outlet end in said air cleaner for supplying air to said air cleaner from an inlet end disposed in a protected area contiguous to the front of said vehicle, said inlet end being disposed so that foreign materials will be precluded from entry thereto, said seat comprising a cushion portion and a base plate portion, the forwardmost portion of said base plate portion being spaced from said cushion portion to define a space with said inlet device inlet end being in communication with said space and being positioned therein and facing the underside of the forwardmost portion of said seat.
Claim 9
Dependent Claim
34 words
An induction system for an off the road vehicle as set forth in claim 1 wherein the forwardly facing inlet of the air cleaner is formed in a forward face of the air cleaner.
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) | 1988-01-29 | 1988-07-30 | 1989-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-29 | 1992-07-30 | 1993-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-29 | 1996-07-30 | 1997-01-29 | $7700.00 | Window Closed / Lapsed |