Patent US4178955A successfully refreshed from Google Patents.
US4178955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle fuel tank
Assignee: Volkswagen AG
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Filing: 1978-05-03
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Granted: 1979-12-18
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Expires: 1998-05-03
Abstract
Abstract A vehicle fuel tank has indentations on the bottom wall which form an internal pocket between oppositely facing surfaces of the indentations. A reserve tank is mounted in the pocket. In a preferred embodiment, the reserve tank is clamped by the surfaces using an elastic member with radial prolongations, at least some of which, in the assembled condition, are oriented in opposition to the direction of removal of the reserve tank.
Inventors
- 👤 Wolfram Dau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:44
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/077; B60K2015/03105; B60K2015/03118; B60K2015/03138; B60K2015/03144; B60K2015/03236; B60K2015/03328; B60K2015/03453; F; F02; F02M; F02M37/00; F02M37/0076; F02M37/0088; F02M37/0094; F02M37/04; F02M37/08; F02M37/10; F02M37/103; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4824; Y10T137/4841
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
A vehicle fuel tank comprising a tank enclosure having a bottom wall, said bottom wall being formed with first and second indentations, said indentations being arranged to form an internal pocket within the tank between oppositely facing surfaces of said indentations, and a reserve tank, communicating with a fuel outlet line and mounted to said bottom in said pocket and clamped by its lower periphery between said oppositely facing surfaces.
Claim 2
Dependent Claim
70 words
A vehicle fuel tank comprising a tank enclosure having a bottom wall, said bottom wall being formed with first and second indentations, said indentations being arranged to form an internal pocket within the tank between oppositely facing surfaces of said indentations, and a reserve tank, communicating with a fuel outlet line and mounted to said bottom in said pocket and clamped by its lower periphery between said oppositely facing surfaces.
Claim 3
Dependent Claim
58 words
A tank as specified in claim 1 wherein there is provided an intermediate elastic member between said oppositely facing surfaces and said periphery of said reserve tank, said elastic member having radial prolongations, at least some of which, in the assembled state of said tank are oriented in opposition to the direction of removal of said reserve tank.
Claim 4
Dependent Claim
29 words
A tank as specified in claim 2 wherein said oppositely facing surfaces are closer to each other in an upper portion than in a lower portion of said pocket.
Claim 5
Dependent Claim
24 words
A tank as specified in claim 1 wherein said indentations have a larger cross-section near the sidewalls of said tank than near said surfaces.
Claim 6
Dependent Claim
19 words
A tank as specified in claims 1, 2, 3, or 4 wherein said tank is fabricated from blown plastic.
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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |