Patent EP0307197A2 successfully refreshed from Google Patents.
EP0307197A2
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EP
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Conductive polymeric heater
Assignee: Raychem Ltd
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Filing: 1988-09-08
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Granted: —
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Expires: 2008-09-08
Abstract
Abstract A method and article for joining two substrates or repairing a substrate comprising positioning in thermal contact with and surrounding the substrate(s) a tubular article comprising conductive polymeric material. Two electrodes extending along the whole or part of the article as connected to a source of electrical power to cause current to pass through and heat the article. The conductive polymeric material is urged radially inwards towards the substrate(s). The radially inward movement may be caused by recovery of the conductive polymeric material, or by the use of elastomeric material.
Inventors
- 👤 George Michael John Gansbuehler
- 👤 George Barry Park
- 👤 Per Jenson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 20:52
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/255; G02B6/2558; B; B29; B29C; B29C61/00; B29C61/06; B29C61/0608; B29C61/0625; B29C65/00; B29C65/02; B29C65/18; B29C65/34; B29C65/3404; B29C65/3444; B29C65/3468; B29C65/3472; B29C65/3484; B29C65/3488; B29C65/66; B29C65/68; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/114; B29C66/1142; B29C66/13; B29C66/131; B29C66/1312; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/5229; B29C66/52298; B29C66/63; B29C66/636; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81471; G02B6/44; G02B6/4439; G02B6/4471; G02B6/4476; H; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; H05B3/146; B29C65/346; B29C66/70; B29C66/71; B29K; B29K2995/00; B29K2995/0003; B29K2995/0005
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
110 words
A method of joining two elongate substrates, or of repairing a damaged substrate comprising: (a) positioning in thermal contact with, and surrounding the substrate(s), a tubular article comprising conductive polymeric material, having extending along the whole or part of its length at least two electrical connection means, preferably electrodes; (b) connecting the electrical connection means to a source of electrical power to cause a substantial portion of the electrical current to flow between the electrical connection means substantially parallel to the faces of the article thereby heating the substrates conductive polymeric material; and (c) urging the conductive polymeric article radially inward to urge the conductive polymeric tube towards the substrate(s).
Claim 2
Independent Claim
110 words
A method of joining two elongate substrates, or of repairing a damaged substrate comprising: (a) positioning in thermal contact with, and surrounding the substrate(s), a tubular article comprising conductive polymeric material, having extending along the whole or part of its length at least two electrical connection means, preferably electrodes; (b) connecting the electrical connection means to a source of electrical power to cause a substantial portion of the electrical current to flow between the electrical connection means substantially parallel to the faces of the article thereby heating the substrates conductive polymeric material; and (c) urging the conductive polymeric article radially inward to urge the conductive polymeric tube towards the substrate(s).
Claim 3
Dependent Claim
47 words
A method according to claim 1, comprising including between the conductive polymeric material and the substrate(s) a heat softenable material which flows on heating of the conductive polymeric material to join the substrates to each other or to the heater, or flows to repair the damaged substrate.
Claim 4
Dependent Claim
27 words
A method according to claim 2, wherein the heat softenable material is provided as a discrete piece, or as a lining on the inside of the heater.
Claim 5
Dependent Claim
33 words
A method according to claim 2, or 3 wherein a release member is provided between the heat softenable material and the article, and the article is removed after flowing of the softenable material.
Claim 6
Independent Claim
40 words
A method according to any preceding claim, for joining two abutting or telescoped substrates wherein the heating of the conductive polymeric material and the urging radially inward causes the abutting ends or telescoped portions of the substrates to fuse together.
Claim 7
Independent Claim
32 words
A method according to any preceding claim, wherein the article is wraparound, and the method comprises positioning a closure on the article to form the wraparound into a tube of closed cross-section.
Claim 8
Dependent Claim
66 words
A wraparound tubular article, and a closure means for closing the wraparound, comprising a conductive polymeric material having extending along the whole or part of its length at least two electrical connection means, preferably electrodes which can be connected to a source of electrical power to cause a substantial portion of the electrical current to flow between the electrical connection thereby heating the conductive polymeric material.
Claim 9
Dependent Claim
66 words
A wraparound tubular article, and a closure means for closing the wraparound, comprising a conductive polymeric material having extending along the whole or part of its length at least two electrical connection means, preferably electrodes which can be connected to a source of electrical power to cause a substantial portion of the electrical current to flow between the electrical connection thereby heating the conductive polymeric material.
Claim 10
Dependent Claim
27 words
A method according to claim 6 or an article according to claim 7, wherein the article is in two parts joined to each other by two closures.
Claim 11
Dependent Claim
46 words
A method or article according to claim 8, wherein all parts of the article are electrically conductive, all the parts of the article are heat recoverable, or one or some of the article parts are heat recoverable,or one or some of the article parts are elastomeric.
Claim 12
Independent Claim
16 words
A method or article according to any preceding claim wherein the electrical connection means are electrodes.
References Cited (Backward Citations)
No citation records indexed.
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