Patent US5132490A successfully refreshed from Google Patents.
US5132490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductive polymer shielded wire and cable
Assignee: Champlain Cable Corp
•
Filing: 1991-05-03
•
Granted: 1992-07-21
•
Expires: 2011-05-03
Abstract
Abstract The present invention features a shielded wire and cable article capable of operating more effectively in high power environments. The article generally comprises an inner conductive core of one or more wires that can be twisted or braided and which can be individually insulated. The conductive core is surrounded by one or more thin layer(s) of insulation about which conventional, braided or served mesh shielding is applied. The shielding effectiveness is improved in accordance with this invention by the addition of a layer of conductive polymer material above or below the braided or served mesh.
Inventors
- 👤 Mahmoud Aldissi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:05
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/02; H01B11/06; H01B11/10; H01B11/1058; H01B11/1066
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
113 words
A wire or cable article having enhanced shielding effectiveness, particularly in the EMI frequency region, comprising: a conductive core member; at least one layer of insulation disposed over said conductive core member; a layer of shield material consisting of a metallic braided or served mesh provided as a protective shield layer disposed over the insulated conductive core member; and a jacket over said protective shield layer comprising at least one layer of an inherently and intrinsically conductive polymer material, and wherein transfer impedance of said wire or cable is in an approximate range of 0.05 to 0.5 ohm/meter at a frequency in a respective range of approximately between 5 Mhz and 1 GHz.
Claim 2
Dependent Claim
113 words
A wire or cable article having enhanced shielding effectiveness, particularly in the EMI frequency region, comprising: a conductive core member; at least one layer of insulation disposed over said conductive core member; a layer of shield material consisting of a metallic braided or served mesh provided as a protective shield layer disposed over the insulated conductive core member; and a jacket over said protective shield layer comprising at least one layer of an inherently and intrinsically conductive polymer material, and wherein transfer impedance of said wire or cable is in an approximate range of 0.05 to 0.5 ohm/meter at a frequency in a respective range of approximately between 5 Mhz and 1 GHz.
Claim 3
Dependent Claim
32 words
The wire or cable article in accordance with claim 1, wherein said jacket material comprises inherently and intrinsically conductive polymers selected from a group consisting of polypyrrole, and a polyaniline-based conducting polymer.
Claim 4
Dependent Claim
23 words
The wire or cable article in accordance with claim 1, further comprising a conductive polymer layer disposed below said braided or served mesh.
Claim 5
Dependent Claim
36 words
The wire or cable article in accordance with claim 1, wherein there are at least two conductive polymer shield layers disposed about said layer of braided or served mesh, one of which comprises said jacket layer.
Claim 6
Dependent Claim
33 words
The wire or cable article in accordance with claim 1, wherein said wire or cable article comprises a coaxial cable, and further wherein said conductive core member comprises at least one metallic wire.
Claim 7
Dependent Claim
27 words
The wire or cable article in accordance with claim 1, wherein said conductive core member comprises a plurality of metallic wires that are straight, braided or twisted.
Claim 8
Dependent Claim
25 words
The wire or cable article in accordance with claim 1, wherein said conductive core member comprises a plurality of metallic wires that are individually insulated.
Claim 9
Dependent Claim
19 words
The wire or cable article in accordance with claim 1, that is formed into a twin pair of cables.
Claim 10
Dependent Claim
19 words
The wire or cable article in accordance with claim 1, wherein said conductive core member comprises a multicore member.
Claim 11
Dependent Claim
88 words
A wire or cable article having enhanced shielding effectiveness, particularly in the EMI frequency region, comprising: a conductive core member; at least one layer of insulation disposed over said conductive core member; a layer of shield material consisting of a metallic braided or served mesh provided as a protective shield layer disposed over the insulated conductive core member; and at least one layer disposed adjacent said protective shield layer comprising at least one layer of an inherently and intrinsically conductive polymer such as a polyaniline-based conducting polymer material.
Claim 12
Dependent Claim
88 words
A wire or cable article having enhanced shielding effectiveness, particularly in the EMI frequency region, comprising: a conductive core member; at least one layer of insulation disposed over said conductive core member; a layer of shield material consisting of a metallic braided or served mesh provided as a protective shield layer disposed over the insulated conductive core member; and at least one layer disposed adjacent said protective shield layer comprising at least one layer of an inherently and intrinsically conductive polymer such as a polyaniline-based conducting polymer material.
Claim 13
Dependent Claim
25 words
The wire or cable article in accordance with claim 10, wherein said layer disposed adjacent said protective shield layer comprises an overlaid jacket of material.
Claim 14
Dependent Claim
43 words
The wire or cable article in accordance with claim 11, wherein said layer disposed adjacent said protective shield layer comprises an overlaid jacket of material comprising inherently and intrinsically conductive polymers selected from a group consisting of polypyrrole, and a polyaniline-based conducting polymer.
Claim 15
Dependent Claim
24 words
The wire or cable article in accordance with claim 10, wherein said layer disposed adjacent said protective shield layer comprises an underlayer of material.
Claim 16
Dependent Claim
37 words
The wire or cable article in accordance with claim 13, wherein said underlayer disposed adjacent said protective shield layer comprises material of a conductive polymer selected from a group consisting of polypyrrole, and a polyaniline-based conducting polymer.
Claim 17
Dependent Claim
42 words
The wire or cable article in accordance with claim 10, wherein there are at least two conductive polymer shield layers, each of which is disposed about said layer of braided or served mesh and wherein one of which comprises a jacket layer.
Claim 18
Dependent Claim
43 words
The wire or cable article in accordance with claim 10, wherein transfer impedance of said wire or cable is in an approximate range of 0.05 to 0.5 ohm/meter at a frequency in a respective range of approximately between 5 MHz and 1 GHz.
Claim 19
Dependent Claim
21 words
The wire or cable article in accordance with claim 10, wherein said conductive core member comprises at least one metallic wire.
Claim 20
Dependent Claim
27 words
The wire or cable article in accordance with claim 10, wherein said conductive core member comprises a plurality of metallic wires that are straight, braided or twisted.
Claim 21
Dependent Claim
25 words
The wire or cable article in accordance with claim 10, wherein said conductive core member comprises a plurality of metallic wires that are individually insulated.
Claim 22
Dependent Claim
19 words
The wire or cable article in accordance with claim 10, that is formed into a twin pair of cables.
Claim 23
Dependent Claim
19 words
The wire or cable article in accordance with claim 10, wherein said conductive core member comprises a multicore member.
Claim 24
Dependent Claim
21 words
The wire or cable article in accordance with claim 10, wherein the conductive polymer layer is disposed beneath said shield layer.
References Cited (Backward Citations)
US3660592A
Cited
US4096346A
Cited
US4301428A
Cited
US4383225A
Cited
US4347487A
Cited
US4486721A
Cited
US4487996A
Cited
US4556860A
Cited
US4871883A
Cited
US4965412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-21 | 1996-01-20 | 1996-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-21 | 2000-01-20 | 2000-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-21 | 2004-01-20 | 2004-07-21 | $7700.00 | Window Closed / Lapsed |