US5570711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite and tie layer therefor
Assignee: Eaton Aeroquip LLC
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Filing: 1995-08-09
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Granted: 1996-11-05
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Expires: 2015-08-09
Abstract
Abstract The present invention provides a composite or hose which minimizes hydrocarbon emission in fuel systems. The composite or hose is especially suitable for motor vehicles. The composite or hose uses a thin, inner layer of a polyfluorocarbon polymer and an outer layer of a thermoplastic elastomer.
Inventors
- 👤 Brian J. Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:23
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/04; B32B25/08; B32B1/00; B32B1/08; B32B27/00; B32B27/32; B32B27/322; B32B27/34; B32B27/36; B32B27/40; B32B7/00; B32B7/04; B32B7/12; F; F16; F16L; F16L11/00; F16L11/04; B32B38/00; B32B2038/0052; B32B2038/0076; B32B2250/00; B32B2250/24; B32B2270/00; B32B2323/00; B32B2323/10; B32B2327/00; B32B2327/12; B32B2327/18; B32B2367/00; B32B2375/00; B32B2377/00; B32B2597/00; F16L2011/047
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
69 words
A composite suitable for use with fuel systems for motor vehicles comprising: a thin inner layer resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer wherein the polyfluorocarbon polymer is tetrafluoroethylene hexafluoropropylene vinylidene fluoride; and an outer cover consisting essentially of a thermoplastic elastomer wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymers, polyolefinic blends, elastomeric alloys, polyurethanes, copolyesters and elastomeric polyamides.
Claim 2
Dependent Claim
69 words
A composite suitable for use with fuel systems for motor vehicles comprising: a thin inner layer resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer wherein the polyfluorocarbon polymer is tetrafluoroethylene hexafluoropropylene vinylidene fluoride; and an outer cover consisting essentially of a thermoplastic elastomer wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymers, polyolefinic blends, elastomeric alloys, polyurethanes, copolyesters and elastomeric polyamides.
Claim 3
Dependent Claim
35 words
A composite according to claim I wherein the thin, inner layer has a thickness ranging from 0.001 inch to 0.025 inch and the outer layer has a thickness ranging from 0.030 inch to 0.500 inch.
Claim 4
Dependent Claim
35 words
A composite according to claim I wherein the thin, inner layer has a thickness ranging from 0.005 inch to 0.020 inch and the outer layer has a thickness ranging from 0.030 inch to 0.250 inch.
Claim 5
Dependent Claim
15 words
A composite according to claim 1 wherein the thermoplastic elastomer is a polyolefinic thermoplastic elastomer.
Claim 6
Dependent Claim
21 words
A composite according to claim 1 wherein the thermoplastic elastomer is a polyolefinic thermoplastic elastomer of polypropylene and ethylene-propylene diene rubber.
Claim 7
Dependent Claim
17 words
A composite according to claim 1 wherein the thermoplastic elastomer is a partially cross-linked halogenated polyolefin alloy.
Claim 8
Dependent Claim
19 words
A composite according to claim 6 wherein the polyolefin alloy is a blend of nitrile rubber and polyvinyl chloride.
Claim 9
Dependent Claim
69 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner liner resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer wherein the polyfluorocarbon polymer is tetrafluoroethylene hexafluoropropylene vinylidene fluoride; and an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymers, polyolefinic blends, elastomeric alloys, polyurethanes, copolymers and elastomeric polyamides.
Claim 10
Dependent Claim
69 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner liner resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer wherein the polyfluorocarbon polymer is tetrafluoroethylene hexafluoropropylene vinylidene fluoride; and an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymers, polyolefinic blends, elastomeric alloys, polyurethanes, copolymers and elastomeric polyamides.
Claim 11
Dependent Claim
35 words
A tube according to claim 8 wherein the thin, inner liner has a thickness ranging from 0.001 inch to 0.025 inch and the outer cover has a thickness ranging from 0.030 inch to 0.500 inch.
Claim 12
Dependent Claim
35 words
A tube according to claim 8 wherein the thin, inner liner has a thickness ranging from 0.005 inch to 0.020 inch and the outer cover has a thickness ranging from 0.030 inch to 0.250 inch.
Claim 13
Dependent Claim
16 words
A tube according to claim 8 wherein the thermoplastic elastomer is a elastomeric alloy thermoplastic elastomer.
Claim 14
Dependent Claim
20 words
A tube according to claim 8 wherein the thermoplastic elastomer is a thermoplastic elastomer of polypropylene and ethylene-propylene diene rubber.
Claim 15
Dependent Claim
17 words
A tube according to claim 8 wherein the thermoplastic elastomer is a partially cross-linked halogenated elastomeric alloy.
Claim 16
Dependent Claim
19 words
A tube according to claim 13 wherein the elastomeric alloy is a blend of nitrile rubber and polyvinyl chloride.
Claim 17
Dependent Claim
76 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner liner resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer; an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymers, polyolefinic blends, elastomeric alloys, polyurethanes, copolymers and elastomeric polyamides; and wherein the thin, inner liner is bonded to the outer cover with a tie layer therebetween.
Claim 18
Dependent Claim
76 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner liner resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer; an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymers, polyolefinic blends, elastomeric alloys, polyurethanes, copolymers and elastomeric polyamides; and wherein the thin, inner liner is bonded to the outer cover with a tie layer therebetween.
Claim 19
Dependent Claim
74 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner liner resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer; an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymer, polyolefinic blends, elastomeric alloys, polyurethane, copolyesters and elastomeric polyamides; and a coextrudable tie layer therebetween bonding the thin, inner liner to the outer cover.
Claim 20
Dependent Claim
74 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner liner resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer; an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymer, polyolefinic blends, elastomeric alloys, polyurethane, copolyesters and elastomeric polyamides; and a coextrudable tie layer therebetween bonding the thin, inner liner to the outer cover.
Claim 21
Dependent Claim
75 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner liner resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer; an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymer, polyolefinic blends, elastomeric alloys, polyurethanes, copolyesters and elastomeric polyamides; and a melting processable tie layer therebetween bonding the thin, inner liner to the outer cover.
Claim 22
Dependent Claim
75 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner liner resistant to hydrocarbon fuel permeation consisting essentially of a polyfluorocarbon polymer; an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymer, polyolefinic blends, elastomeric alloys, polyurethanes, copolyesters and elastomeric polyamides; and a melting processable tie layer therebetween bonding the thin, inner liner to the outer cover.
Claim 23
Dependent Claim
75 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner layer resistant to hydrocarbon fuel permeation consisting essentially of a thermoplastic elastomer; an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymer, polyolefinic blends, elastomeric alloys, polyurethanes, copolyesters and elastomeric polyamides; and a thin layer of polyfluorocarbon polymer between the thin, inner liner and the outer cover.
Claim 24
Dependent Claim
75 words
A tube suitable for use with fuel systems for motor vehicles comprising: a thin inner layer resistant to hydrocarbon fuel permeation consisting essentially of a thermoplastic elastomer; an outer cover consisting essentially of a thermoplastic elastomer, wherein the thermoplastic elastomer is selected from the group consisting of styrene block copolymer, polyolefinic blends, elastomeric alloys, polyurethanes, copolyesters and elastomeric polyamides; and a thin layer of polyfluorocarbon polymer between the thin, inner liner and the outer cover.
Claim 25
Dependent Claim
24 words
A tube according to claim 18 wherein the thin inner liner and the outer cover are bonded to the thin layer of polyfluorocarbon polymer.
Claim 26
Dependent Claim
25 words
A tube according to claim 19 wherein tie layers bond the thin inner liner and the outer cover to the thin layer of polyfluorocarbon polymer.
Claim 27
Dependent Claim
15 words
A tube according to claim 20 wherein the tie layers are melt processable tie layers.
Claim 28
Dependent Claim
20 words
A tube according to claim 18 herein the thin inner line is bonded to the thin layer of polyfluorocarbon polymer.
Claim 29
Dependent Claim
19 words
A tube according to claim 18 wherein the outer cover is bonded to the thin layer of polyfluorocarbon polymer.
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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) | 1999-11-05 | 2000-05-06 | 2000-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-05 | 2004-05-06 | 2004-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-05 | 2008-05-06 | 2008-11-05 | $7700.00 | Window Closed / Lapsed |