Patent US3774803A successfully refreshed from Google Patents.
US3774803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel tank air vent line
Assignee: Bombardier Inc
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Filing: 1972-09-18
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Granted: 1973-11-27
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Expires: 1992-09-18
Abstract
Abstract An air vent line for use with a snowmobile fuel storage tank is shaped so as to have at all times a portion thereof vertically extending above the tank''s fuel level for any of the nonhorizontal positions in which the snowmobile may normally be when in use or while being stored. As a result, fuel leakage occurrences are greatly reduced.
Inventors
- 👤 J Bombardier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:49
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/035; B60K15/03504
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
148 words
A snowmobile fuel storage tank comprising, in combination: top, bottom and opposite side walls defining a closed chamber; fuel inlet and outlet means on said top wall; air vent means extending through said top wall and including a tube having one open end inside said chamber and an opposite open end outside said chamber in communication with the atmosphere; said tube having a first portion extending from said top wall to beyond a first plane including a first side wall, a second portion extending across said chamber from said first side wall to the opposite side wall thereof, and a third portion extending beyond a second plane including said opposite side wall, whereby fuel contained in said chamber, when tilted sideways, is prevented from leaking outside said tube as a result of said tube having a portion thereof extending vertically above the fuel level inside said tilted chamber.
Claim 2
Dependent Claim
148 words
A snowmobile fuel storage tank comprising, in combination: top, bottom and opposite side walls defining a closed chamber; fuel inlet and outlet means on said top wall; air vent means extending through said top wall and including a tube having one open end inside said chamber and an opposite open end outside said chamber in communication with the atmosphere; said tube having a first portion extending from said top wall to beyond a first plane including a first side wall, a second portion extending across said chamber from said first side wall to the opposite side wall thereof, and a third portion extending beyond a second plane including said opposite side wall, whereby fuel contained in said chamber, when tilted sideways, is prevented from leaking outside said tube as a result of said tube having a portion thereof extending vertically above the fuel level inside said tilted chamber.
Claim 3
Dependent Claim
20 words
A storage tank as defined in claim 1 wherein said second portion of said tube extends above said top wall.
Claim 4
Dependent Claim
46 words
A storage tank as defined in claim 2 wherein said fuel outlet means include an opening on said top wall and connecting means for securing fuel lines in said opening; said tube extending through said opening and said connecting means securing said tube to said chamber.
Claim 5
Dependent Claim
166 words
A snowmobile fuel storage tank comprising in combination: top, bottom, front, rear, first and second side walls defining a closed chamber for receiving fuel therein; fuel inlet and outlet means on said top wall; air vent means extending tHrough said top wall and including a tube having one open end inside said chamber and an opposite open end outside said chamber in communication with the atmosphere, said tube having a first portion extending from said top wall to beyond a first plane defined by said first side wall, a second portion extending across said chamber from said first side wall to said second side wall, and a third portion extending beyond a second plane including said second side wall and beyond a third plane including said rear wall, whereby fuel contained in said chamber, when tilted sideways or frontwardly, is prevented from leaking outside said tube as a result of said tube having a portion thereof extending vertically above the fuel level inside said tilted chamber.
Claim 6
Dependent Claim
166 words
A snowmobile fuel storage tank comprising in combination: top, bottom, front, rear, first and second side walls defining a closed chamber for receiving fuel therein; fuel inlet and outlet means on said top wall; air vent means extending tHrough said top wall and including a tube having one open end inside said chamber and an opposite open end outside said chamber in communication with the atmosphere, said tube having a first portion extending from said top wall to beyond a first plane defined by said first side wall, a second portion extending across said chamber from said first side wall to said second side wall, and a third portion extending beyond a second plane including said second side wall and beyond a third plane including said rear wall, whereby fuel contained in said chamber, when tilted sideways or frontwardly, is prevented from leaking outside said tube as a result of said tube having a portion thereof extending vertically above the fuel level inside said tilted chamber.
Claim 7
Dependent Claim
20 words
A storage tank as defined in claim 4 wherein said second portion of said tube extends above said top wall.
Claim 8
Dependent Claim
46 words
A storage tank as defined in claim 5 wherein said fuel outlet means include an opening on said top wall and connecting means for securing fuel lines in said opening; said tube extending through said opening and said connecting means securing said tube to said chamber.
References Cited (Backward Citations)
US2404765A
Cited
US3244314A
Cited
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 |