US5393929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical insulation and articles thereof
Assignee: Junkosha Co Ltd
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Filing: 1993-11-23
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Granted: 1995-02-28
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Expires: 2013-11-23
Abstract
Abstract A light-weight, but strong and cut-through resistant electrical insulation tape, which is a laminate of porous polytetrafluoroethylene and polyetheretherketone. Also described are insulated wires and coaxial cables using the electrical insulation tape.
Inventors
- 👤 Hideo Yagihashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:12
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B1/00; B32B27/28; B32B27/285; B32B27/32; B32B27/322; H; H01; H01B; H01B11/00; H01B11/18; H01B11/1834; H01B11/1839; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/427; H01B3/44; H01B3/443; H01B3/445; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/036; B32B2307/00; B32B2307/20; B32B2307/206; B32B2327/00; B32B2327/12; B32B2327/18; B32B2371/00; H05K1/032; H05K1/034; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0116; H05K2201/0137; H05K2201/015; H05K2201/02; H05K2201/0203; H05K2201/0206; H05K2201/0209; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
29 words
An electrical insulation laminate comprising a layer of porous polytetrafluoroethylene and at least one layer of polyetheretherketone, the latter being melt-bonded to one or both surfaces of the former.
Claim 2
Dependent Claim
29 words
An electrical insulation laminate comprising a layer of porous polytetrafluoroethylene and at least one layer of polyetheretherketone, the latter being melt-bonded to one or both surfaces of the former.
Claim 3
Dependent Claim
56 words
An insulated electrical wire comprising, from inside to outside: (a) at least one metal inner conductor, (b) at least one layer of porous expanded polytetrafluoroethylene, and (c) at least one layer of polyetheretherketone; said layers being in film form wrapped on said conductor, and said layer of polyetheretherketone melt-bonded to said layer of porous expanded polytetrafluoroethylene.
Claim 4
Dependent Claim
56 words
An insulated electrical wire comprising, from inside to outside: (a) at least one metal inner conductor, (b) at least one layer of porous expanded polytetrafluoroethylene, and (c) at least one layer of polyetheretherketone; said layers being in film form wrapped on said conductor, and said layer of polyetheretherketone melt-bonded to said layer of porous expanded polytetrafluoroethylene.
Claim 5
Dependent Claim
22 words
The insulated electrical wire as recited in claim 2 wherein the layer of polyetheretherketone has a thickness of 25 micrometers or less.
Claim 6
Dependent Claim
22 words
The insulated electrical wire as recited in claim 3 wherein the layer of polyetheretherketone has a thickness of 10 micrometers or less.
Claim 7
Dependent Claim
50 words
An insulated electrical wire comprising, from inside to outside: (a) at least one metal inner conductor, and (b) at least one layer of a composite article comprising a layer of polyetheretherketone melt-bonded to a layer of porous expanded polytetrafluoroethylene; said composite article being in film form wrapped on the conductor.
Claim 8
Dependent Claim
50 words
An insulated electrical wire comprising, from inside to outside: (a) at least one metal inner conductor, and (b) at least one layer of a composite article comprising a layer of polyetheretherketone melt-bonded to a layer of porous expanded polytetrafluoroethylene; said composite article being in film form wrapped on the conductor.
Claim 9
Dependent Claim
22 words
The insulated electrical wire as recited in claim 5 wherein the layer of polyetheretherketone has a thickness of 25 micrometers or less.
Claim 10
Dependent Claim
22 words
The insulated electrical wire as recited in claim 6 wherein the layer of polyetheretherketone has a thickness of 10 micrometers or less.
Claim 11
Dependent Claim
69 words
A coaxial cable comprising, from inside to outside: (a) at least one metal inner conductor, (b) at least one layer of porous expanded polytetrafluoroethylene, (c) at least one layer of polyetheretherketone; and (d) at least one outer electrically-conductive layer; said layers of porous expanded polytetrafluoroethylene and polyetheretherketone being in film form wrapped on said inner conductor, and said layer of polyetheretherketone melt-bonded to said layer of porous expanded polytetrafluoroethylene.
Claim 12
Dependent Claim
69 words
A coaxial cable comprising, from inside to outside: (a) at least one metal inner conductor, (b) at least one layer of porous expanded polytetrafluoroethylene, (c) at least one layer of polyetheretherketone; and (d) at least one outer electrically-conductive layer; said layers of porous expanded polytetrafluoroethylene and polyetheretherketone being in film form wrapped on said inner conductor, and said layer of polyetheretherketone melt-bonded to said layer of porous expanded polytetrafluoroethylene.
Claim 13
Dependent Claim
21 words
The coaxial cable as recited in claim 8 wherein the layer of polyetheretherketone has a thickness of 25 micrometers or less.
Claim 14
Dependent Claim
21 words
The coaxial cable as recited in claim 9 wherein the layer of polyetheretherketone has a thickness of 10 micrometers or less.
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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) | 1998-02-27 | 1998-08-29 | 1999-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-27 | 2002-08-29 | 2003-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-27 | 2006-08-29 | 2007-02-28 | $7700.00 | Window Closed / Lapsed |