US5043530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical cable
Assignee: Champlain Cable Corp
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Filing: 1989-07-31
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Granted: 1991-08-27
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Expires: 2009-07-31
Abstract
Abstract The invention features a shielded cable that has reduced susceptibility to system generated electromagnetic pulse effects. A two-part silicone rubber compound introduced to the conductive core and shield of the cable fills in all the voids and spaces between the wire leads and the shield braided strands, thus eliminating the deleterious pulse effect susceptibility.
Inventors
- 👤 William E. Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:11
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/32; H01B13/322; H01B11/00; H01B11/02; H01B11/06; H01B11/10; H01B11/1033; H01B7/00; H01B7/17; H01B7/18; H01B7/1895
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
83 words
An electrical cable having a reduced susceptibility to system generated electromagnetic pulse effects, comprising: an insulated conductive wire core comprising at least one wire lead; a shield layer surrounding said conductive wire core; an insulative jacket surrounding said shield layer; and a cured, integrally formed, elastomeric, amorphous material mass disposed about said conductive wire core and substantially filling interstitial voids within said shield layer and between wire leads of said conductive wire core, whereby susceptibility to system generated electromagnetic pulses is substantially reduced.
Claim 2
Dependent Claim
83 words
An electrical cable having a reduced susceptibility to system generated electromagnetic pulse effects, comprising: an insulated conductive wire core comprising at least one wire lead; a shield layer surrounding said conductive wire core; an insulative jacket surrounding said shield layer; and a cured, integrally formed, elastomeric, amorphous material mass disposed about said conductive wire core and substantially filling interstitial voids within said shield layer and between wire leads of said conductive wire core, whereby susceptibility to system generated electromagnetic pulses is substantially reduced.
Claim 3
Dependent Claim
14 words
The electrical cable of claim 1, wherein said elastomeric, amorphous material comprises silicone rubber.
Claim 4
Dependent Claim
34 words
The electrical cable of claim 2, wherein said silicone rubber in its liquified state is characterized by a viscosity in an uncured state in an approximate range of between 1.2 to 3.2×10 6 centipoises.
Claim 5
Dependent Claim
27 words
The electrical cable of claim 3, wherein said silicone rubber in an uncured, liquified state is curable within approximately between 8 to 24 hours at ambient temperature.
Claim 6
Dependent Claim
21 words
The electrical cable of claim 2, wherein said silicone rubber is defined by a thixotropic paste in an uncured, liquified state.
Claim 7
Dependent Claim
27 words
The electrical cable of claim 2, wherein said silicone rubber in an uncured, liquified state is curable within approximately between 8 to 24 hours at ambient temperature.
Claim 8
Dependent Claim
129 words
An electrical cable having a reduced susceptibility to system generated electromagnetic pulse effects, comprising: an insulated conductive wire core comprising at least one wire lead; a shield layer surrounding said conductive wire core; an insulative jacket surrounding said shield layer; and a cured, integrally formed elastomeric, amorphous material comprising silicone rubber whose viscosity in its liquified, uncured state is in an approximate range of between 1.2 to 3.2×10 6 centipoises, sufficient to allow it to flow under pressure about and within said wire core, wherein said cured silicone rubber becomes disposed about and integrally disposed within interstitial voids of said conductive wire core, and is further characterized by substantially filling voids within said shield layer and between wire leads, whereby susceptibility to system generated electromagnetic pulses is substantially reduced.
Claim 9
Dependent Claim
129 words
An electrical cable having a reduced susceptibility to system generated electromagnetic pulse effects, comprising: an insulated conductive wire core comprising at least one wire lead; a shield layer surrounding said conductive wire core; an insulative jacket surrounding said shield layer; and a cured, integrally formed elastomeric, amorphous material comprising silicone rubber whose viscosity in its liquified, uncured state is in an approximate range of between 1.2 to 3.2×10 6 centipoises, sufficient to allow it to flow under pressure about and within said wire core, wherein said cured silicone rubber becomes disposed about and integrally disposed within interstitial voids of said conductive wire core, and is further characterized by substantially filling voids within said shield layer and between wire leads, whereby susceptibility to system generated electromagnetic pulses is substantially reduced.
Claim 10
Dependent Claim
18 words
The electrical cable of claim 7, wherein said conductive wire core contains between one and four wire leads.
Claim 11
Dependent Claim
24 words
The electrical cable of claim 8, wherein each of said wire leads is insulated with a material selected from a group consisting of: fluoropolymers.
Claim 12
Dependent Claim
17 words
The electrical cable of claim 8, wherein a material insulating said wire leads comprises dip-coated crosswrapped tapes.
Claim 13
Dependent Claim
13 words
The electrical cable of claim 8, wherein each wire lead comprises silver-coated copper.
Claim 14
Dependent Claim
19 words
The electrical cable of claim 11, wherein said conductive wire core contains between one and four cabled wire leads.
Claim 15
Dependent Claim
16 words
The electrical cable of claim 7, wherein said shield layer comprises braided strands, silver-coated, copper alloy.
Claim 16
Dependent Claim
25 words
The electrical cable of claim 7, wherein said insulative jacket comprises a material selected from a group consisting of: a polyester, fluorocarbon and a polyimide.
Claim 17
Dependent Claim
24 words
The electrical cable of claim 14, wherein the selected material is a polyimide, and said polyimide insulative jacket comprises a wrap of polyimide tape.
Claim 18
Dependent Claim
22 words
The electrical cable of claim 7, wherein said elastomeric, amorphous material is defined by a thixotropic paste in an uncured, liquified state.
Claim 19
Dependent Claim
75 words
In an electrical cable including an insulated conductive wire core surrounded by a shield that is further surrounded by an insulative jacket, the improvement comprising: a cured, integrally formed, elastomeric, amorphous material mass disposed about and within said conductive core and said shield that substantially fills interstitial voids within said shield and within said conductive wire core, and between wires of said conductive wire core, whereby susceptibility to system generated electromagnetic pulses is substantially reduced.
Claim 20
Dependent Claim
75 words
In an electrical cable including an insulated conductive wire core surrounded by a shield that is further surrounded by an insulative jacket, the improvement comprising: a cured, integrally formed, elastomeric, amorphous material mass disposed about and within said conductive core and said shield that substantially fills interstitial voids within said shield and within said conductive wire core, and between wires of said conductive wire core, whereby susceptibility to system generated electromagnetic pulses is substantially reduced.
Claim 21
Dependent Claim
14 words
The electrical cable of claim 17, wherein said elastomeric, amorphous material comprises silicone rubber.
Claim 22
Dependent Claim
31 words
The electrical cable of claim 18, wherein said silicone rubber is characterized in a liquified, uncured state by a viscosity in an approximate range of between 1.2 to 3.2×10 6 centipoises.
Claim 23
Dependent Claim
21 words
The electrical cable of claim 18, wherein said silicone rubber is defined in a liquified, uncured state by a thixotropic paste.
Claim 24
Dependent Claim
27 words
The electrical cable of claim 18, wherein said silicone rubber in a liquified, uncured state is curable within approximately between 8 to 24 hours at ambient temperature.
Claim 25
Dependent Claim
27 words
The electrical cable of claim 19, wherein said silicone rubber in a liquified, uncured state is curable within approximately between 8 to 24 hours at ambient temperature.
Claim 26
Dependent Claim
18 words
The electrical cable of claim 17, wherein said conductive wire core contains between one and four wire leads.
Claim 27
Dependent Claim
28 words
The electrical cable of claim 23, wherein each of said wire leads is insulated with a material selected from a group consisting of: a fluoropolymer and a polyimide.
Claim 28
Dependent Claim
20 words
The electrical cable of claim 24, wherein said selected material is polyimide, said polyimide insulation comprises dip coated crosswrapped tapes.
Claim 29
Dependent Claim
13 words
The electrical cable of claim 23, wherein each wire lead comprises silver-coated copper.
Claim 30
Dependent Claim
15 words
The electrical cable of claim 17, wherein said shield comprises braided strands, silver-coated, copper alloy.
Claim 31
Dependent Claim
24 words
The electrical cable of claim 17, wherein said insulative jacket comprises a material selected from a group consisting of: a polyester, fluorocarbon and polyimide.
Claim 32
Dependent Claim
22 words
The electrical cable of claim 28, wherein said selected material is polyimide, said polyimide insulative jacket comprises a wrap of polyimide tape.
Claim 33
Dependent Claim
22 words
The electrical cable of claim 17, wherein said elastomeric, amorphous material is defined in a liquified, uncured state by a thixotropic paste.
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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) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |