Patent FR2689388A1 successfully refreshed from Google Patents.
US5507320A
Expired / Lapsed
US
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Hose for an automobile fuel line
Assignee: Dana Inc
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Filing: 1994-10-14
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Granted: 1996-04-16
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Expires: 2014-10-14
Abstract
Abstract A laminated hose is present which is suitable for a fuel conducting hose or other hose, or diaphragm, used for example in an automotive vehicle, which structure is required to have excellent heat resistance and gasoline permeation resistance while maintaining suitable properties of bonding and flexibility. The hose is constituted by an inner veneer layer of fluorovinylidene-hexafluoropropylene backed by a thin layer of Teflon. These layer are then reinforced by an elastomeric tie layer, a reinforcing layer and an elastomeric cover.
Inventors
- 👤 Stephen Plumley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:34
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/12; F16L11/125; F16L11/08; F16L11/085; F16L2011/047; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1362; Y10T428/1366
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
A laminated extruded material for containing a fuel, particularly a hydrocarbon fuel comprising: an inner layer for contacting said fuel comprised of a fluorocarbon elastomer which is resistant to permeation of hydrocarbon fuels and; an adjacent outer layer formed of tetraflouroethylene, said adjacent layer adhering to said inner layer, said adhesion of said adjacent layer tetraflouroethylene to said inner layer being enhanced by one of a group consisting of one or more of the following: an organic peroxide 2,5-Dimethyl-2, 5-bis(t-butylperoxy) hexane; a cyanate compound, said cyanate compound being traillyl isocyanurate; an epoxy compound in the form of Cloromethyl oxirane; and, a complex decene compound, said complex decene compound being 1, 8-Diazabicyclo [.5.4.0] undec-7-ene, 98%.
Claim 2
Dependent Claim
114 words
A laminated extruded material for containing a fuel, particularly a hydrocarbon fuel comprising: an inner layer for contacting said fuel comprised of a fluorocarbon elastomer which is resistant to permeation of hydrocarbon fuels and; an adjacent outer layer formed of tetraflouroethylene, said adjacent layer adhering to said inner layer, said adhesion of said adjacent layer tetraflouroethylene to said inner layer being enhanced by one of a group consisting of one or more of the following: an organic peroxide 2,5-Dimethyl-2, 5-bis(t-butylperoxy) hexane; a cyanate compound, said cyanate compound being traillyl isocyanurate; an epoxy compound in the form of Cloromethyl oxirane; and, a complex decene compound, said complex decene compound being 1, 8-Diazabicyclo [.5.4.0] undec-7-ene, 98%.
Claim 3
Dependent Claim
14 words
The hose according to claim 1, wherein said fluorocarbon elastomer comprises approximately 70% fluorine.
Claim 4
Dependent Claim
129 words
A hose for a fuel line comprising: a two-ply tube constituted of an inner layer of a copolymer of hexafluoropropylene with vinylidene flouride which is resistant to permeation of hydrocarbon fuels and an outer layer formed of tetrafluoroethylene adjacent said inner layer; said outer layer adhering to said inner layer, said adhesion of said outer layer tetraflouroethylene to said inner layer being enhanced by one of a group consisting of one or more of the following: an organic peroxide 2,5-Dimethyl-2, 5-bis(t-butylperoxy) hexane; a cyanate compound, said cyanate compound being traillyl isocyanurate; an epoxy compound in the form of Cloromethyl oxirane; and, a complex decene compound, said complex decene compound being 1, 8-Diazabicyclo [.5.4.0] undec-7-ene, 98%; a protective covering layer of a heat resistant fibrous material covering said two-ply tube.
Claim 5
Dependent Claim
129 words
A hose for a fuel line comprising: a two-ply tube constituted of an inner layer of a copolymer of hexafluoropropylene with vinylidene flouride which is resistant to permeation of hydrocarbon fuels and an outer layer formed of tetrafluoroethylene adjacent said inner layer; said outer layer adhering to said inner layer, said adhesion of said outer layer tetraflouroethylene to said inner layer being enhanced by one of a group consisting of one or more of the following: an organic peroxide 2,5-Dimethyl-2, 5-bis(t-butylperoxy) hexane; a cyanate compound, said cyanate compound being traillyl isocyanurate; an epoxy compound in the form of Cloromethyl oxirane; and, a complex decene compound, said complex decene compound being 1, 8-Diazabicyclo [.5.4.0] undec-7-ene, 98%; a protective covering layer of a heat resistant fibrous material covering said two-ply tube.
Claim 6
Dependent Claim
14 words
The hose according to claim 3, wherein said inner layer comprises approximately 70% fluorine.
Claim 7
Dependent Claim
17 words
The hose according to claim 3, wherein said outer layer has a thickness of about 0.05 mm.
Claim 8
Dependent Claim
40 words
The hose according to claim 3, wherein said protective covering layer comprises: a tubular reinforcing layer of a heat resistant fibrous material covering said two-ply tube; and a tubular protective layer of a synthetic rubber intimately covering said reinforcing layer.
Claim 9
Dependent Claim
21 words
The hose according to claim 6, further comprising an elastomeric tie layer provided between said two-ply tube and tubular reinforcing layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-16 | 1999-10-16 | 2000-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-16 | 2003-10-16 | 2004-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-16 | 2007-10-16 | 2008-04-16 | $7700.00 | Window Closed / Lapsed |