US3552599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blow molded fuel tank
Assignee: Motors Liquidation Co
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Filing: 1968-09-12
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Granted: 1971-01-05
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Expires: 1988-09-12
Abstract
Abstract In preferred form, a plastic automobile fuel tank with truncated conical projections formed within two opposite sides of the fuel tank and extending into the fuel tank interior, the adjoining truncated ends of two oppositely directed projections being fused together to impart rigidity to the fuel tank by the formation of hourglass-shaped columns through the fuel tank interior and being provided with a notch to initiate a parting path between the fused projections allowing the fuel tank to expand without rupturing if excessive internal pressure occurs. The aforementioned columns in cooperation with the sides of the fuel tank serve to reinforce the tank against internal and external forces that would undesirable distort the tank.
Inventors
- 👤 Harry L Redding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:05
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/063; B60K15/03177; B60K15/077; B60K2015/03118; B60K2015/03138; B60K2015/0638
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A fuel tank, comprising, a unitary body portion blow molded of plastic material having substantially parallel opposed sides integrally formed together to define an interior space, inlet means through said body portion for the introduction of fuel into said interior space, outlet means through said body portion for the removal of fuel from said interior space, a plurality of inwardly protruding hollow truncated conical projections formed in each of said opposed sides, each of said truncated projections including an end portion located in said interior space, said projections being positioned in said opposed sides to form matched pairs of axially aligned oppositely pointed projections, each of said matched pairs of projections having ends in juxtaposition intermediate of the opposed sides, Said juxtaposed ends being integrally joined to laterally connect said opposed sides, said joined ends having an annular notch formed therearound to initiate parting of the joined ends if predetermined internal pressurization of the tank is exceeded.
Claim 2
Dependent Claim
157 words
A fuel tank, comprising, a unitary body portion blow molded of plastic material having substantially parallel opposed sides integrally formed together to define an interior space, inlet means through said body portion for the introduction of fuel into said interior space, outlet means through said body portion for the removal of fuel from said interior space, a plurality of inwardly protruding hollow truncated conical projections formed in each of said opposed sides, each of said truncated projections including an end portion located in said interior space, said projections being positioned in said opposed sides to form matched pairs of axially aligned oppositely pointed projections, each of said matched pairs of projections having ends in juxtaposition intermediate of the opposed sides, Said juxtaposed ends being integrally joined to laterally connect said opposed sides, said joined ends having an annular notch formed therearound to initiate parting of the joined ends if predetermined internal pressurization of the tank is exceeded.
Claim 3
Dependent Claim
158 words
A vehicle fuel tank, comprising, a unitary body portion of blow molded plastic material having a pair of vertical substantially parallel opposed sides integrally formed together to define an interior space, inlet and outlet means formed in said body portion for the introduction of fuel into said interior space and for the removal of fuel from said interior space, four horizontally inwardly protruding hollow truncated conical projections formed in each of the opposed sides, each of said hollow projections including an end portion located in said interior space, said projections being positioned in said opposed sides to form pairs of axially aligned projections whose ends adjoin within said interior space, said adjoining ends being fused one to another to provide lateral support for said opposed sides against deformation thereof and having an annular notch formed therearound to initiate parting of the joined ends and permit expansion of the tank if predetermined internal pressurization of the tank is exceeded.
Claim 4
Dependent Claim
158 words
A vehicle fuel tank, comprising, a unitary body portion of blow molded plastic material having a pair of vertical substantially parallel opposed sides integrally formed together to define an interior space, inlet and outlet means formed in said body portion for the introduction of fuel into said interior space and for the removal of fuel from said interior space, four horizontally inwardly protruding hollow truncated conical projections formed in each of the opposed sides, each of said hollow projections including an end portion located in said interior space, said projections being positioned in said opposed sides to form pairs of axially aligned projections whose ends adjoin within said interior space, said adjoining ends being fused one to another to provide lateral support for said opposed sides against deformation thereof and having an annular notch formed therearound to initiate parting of the joined ends and permit expansion of the tank if predetermined internal pressurization of the tank is exceeded.
References Cited (Backward Citations)
US3160306A
Cited
US3330439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |