Patent US4401309A successfully refreshed from Google Patents.
US4401309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel tank for motorcycle
Assignee: Yamaha Motor Co Ltd
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Filing: 1980-12-29
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Granted: 1983-08-30
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Expires: 2000-12-29
Abstract
Abstract A fuel tank for a motorcycle. The tank is made of an inner member and an outer member which form between them an inverted U-shaped space for containing fuel. The members are continuously joined to form the space by a welded seam. The members are joined at a seam which is located at both of their edges, except where an extension of one projects beyond the edge of the other to form a rear stay. The edge of said other member at the extension is welded directly to the extension, rather than to its edge. A rib can be formed integrally with the extension to reinforce it.
Inventors
- 👤 Kenji Matsuzaki
- 👤 Akio Horino
- 👤 Yasuharu Terai
- 👤 Shohei Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:13
CPC Classifications
B; B62; B62J; B62J35/00; Y; Y10; Y10S; Y10S220/00; Y10S220/29
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
In a tank of the type having an outer member and an inner member, said outer and inner members being U-shaped and joined at their edges to form a closed U-shaped fuel space, the improvement comprising a rearwardly extending portion of said outer member forming a flange, a rearwardly extending portion of said inner member forming a rear stay with an uppermost flat portion, said flange extending rearwardly for a lesser distance than said rear stay, said flange and said uppermost flat portion being continuously joined together, with a part of said rear stay extending rearwardly beyond said flange.
Claim 2
Dependent Claim
99 words
In a tank of the type having an outer member and an inner member, said outer and inner members being U-shaped and joined at their edges to form a closed U-shaped fuel space, the improvement comprising a rearwardly extending portion of said outer member forming a flange, a rearwardly extending portion of said inner member forming a rear stay with an uppermost flat portion, said flange extending rearwardly for a lesser distance than said rear stay, said flange and said uppermost flat portion being continuously joined together, with a part of said rear stay extending rearwardly beyond said flange.
Claim 3
Dependent Claim
26 words
A tank according to claim 1 in which said rear stay includes at least one rib extending downward from said flat portion to reinforce said stay.
Claim 4
Dependent Claim
15 words
A tank according to claim 2 in which a plurality of said ribs is provided.
Claim 5
Dependent Claim
17 words
A tank according to claim 3 in which said flat portion stay forms an inverted U-shaped structure.
Claim 6
Dependent Claim
29 words
A tank according to claim 1 in which said stay has an aperture to receive a holding member by which the tank can be attached to a neighboring structure.
Claim 7
Dependent Claim
26 words
A tank according to claim 5 in which said rear stay includes at least one rib extending downward from said flat portion to reinforce said stay.
Claim 8
Dependent Claim
15 words
A tank according to claim 6 in which a plurality of said ribs is provided.
Claim 9
Dependent Claim
16 words
A tank according to claim 5 further including a holding member attached to said flat portion.
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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |