Patent US3595422A successfully refreshed from Google Patents.
US3595422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel tank
Assignee: Phillips Petroleum Co
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Filing: 1969-07-28
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Granted: 1971-07-27
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Expires: 1989-07-28
Abstract
Abstract A plastic fuel tank, preferably for use in motor vehicles, is constructed so as to resist impact loading failure by forming said tank from a plurality of containers and adapting said tank to distribute the energy of impact loading relatively equally throughout the container by adapting the tank to communicate fluid between the containers, and constructing the containers into a substantially rigid unit so as to respond to impact loading as a unit.
Inventors
- 👤 D Jr Van Durrett
- 👤 Warren A Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:15
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/03177; B29; B29L; B29L2031/00; B29L2031/712; B29L2031/7172
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
A composite plastic tank comprising: at least first and second plastic shells rigidly attached one to the other forming a substantially rigid, unitary composite blank having a plurality of adjacently positioned containers communicating one with the other through passageways formed at opposed ends of the tank with container walls separating adjacent containers extending across substantially the entire length of the containers and with the volume of each container of the composite tank being of substantially an equal volume relative to other containers of said tank for providing relatively uniform distribution of the energy of impact loading among the containers of said rigid unitary composite tank through the conduction of said energy by fluid communication.
Claim 2
Dependent Claim
114 words
A composite plastic tank comprising: at least first and second plastic shells rigidly attached one to the other forming a substantially rigid, unitary composite blank having a plurality of adjacently positioned containers communicating one with the other through passageways formed at opposed ends of the tank with container walls separating adjacent containers extending across substantially the entire length of the containers and with the volume of each container of the composite tank being of substantially an equal volume relative to other containers of said tank for providing relatively uniform distribution of the energy of impact loading among the containers of said rigid unitary composite tank through the conduction of said energy by fluid communication.
Claim 3
Dependent Claim
11 words
The invention of claim 1 wherein said plastic comprises hydrocarbon polymer.
Claim 4
Dependent Claim
40 words
A plastic fuel tank for motor vehicles as recited in claim 2 wherein said hydrocarbon polymer comprises polyethylene, polypropylene, poly (4-methylpentene-1), copolymers of 2 or more olefins having 2-8 carbon atoms: ethylene-butens-1, ethylene-hexene-1, ethylene-propylene, propylene-butene-1, ethylene-octene-1, propylene-4-methylpentene-1, and ethylene-propylene-hexene-1 terpolymer.
Claim 5
Dependent Claim
56 words
The plastic fuel tank of claim 1 wherein said plurality of containers comprises a first generally rectangular solid container and at least one other generally rectangular solid container, said containers being joined together at opposing end regions so as to provide for fluid communication between said containers and form said containers into a substantially rigid unit.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |