US4110137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for filling cables
Assignee: Phillips Cables Ltd
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Filing: 1976-04-14
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Granted: 1978-08-29
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Expires: 1996-04-14
Abstract
Abstract A composition useful for filling communication cables is described which comprises petroleum jelly and a small amount of siliceous material which renders the petroleum jelly viscous at elevated temperatures, and prevents leakage of the petroleum jelly from a cable having a flaw, which is subjected to elevated temperatures; the composition is particularly useful in communication cables having cellularly insulated conductors where migration of the flowable filler composition into the cellular insulation is diminished.
Inventors
- 👤 Shirley Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:23
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; H01B7/282; H01B7/285; H01B7/288
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
69 words
In a method of making a communication cable the improvement comprising: a. providing a plurality of conductors surrounded by a sheath, and b. filling the interstices between individual conductors and between the conductors and the sheath with a composition comprising petroleum jelly and siliceous material in an amount effective to render the petroleum jelly viscous at elevated temperatures, the siliceous material being substantially uniformly distributed throughout the petroleum jelly.
Claim 2
Dependent Claim
69 words
In a method of making a communication cable the improvement comprising: a. providing a plurality of conductors surrounded by a sheath, and b. filling the interstices between individual conductors and between the conductors and the sheath with a composition comprising petroleum jelly and siliceous material in an amount effective to render the petroleum jelly viscous at elevated temperatures, the siliceous material being substantially uniformly distributed throughout the petroleum jelly.
Claim 3
Independent Claim
42 words
A method of reducing migration of a petroleum jelly filler composition into cellular insulation in a communication cable which comprises substantially uniformly distributing throughout said filler a siliceous material in an amount of 2 to 6%, by volume, of the petroleum jelly.
Claim 4
Independent Claim
42 words
A method of reducing migration of a petroleum jelly filler composition into cellular insulation in a communication cable which comprises substantially uniformly distributing throughout said filler a siliceous material in an amount of 2 to 6%, by volume, of the petroleum jelly.
Claim 5
Dependent Claim
26 words
A method according to claim 2, wherein said cellular insulation is a polyolefin and said siliceous material has a relatively large surface area to mass ratio.
Claim 6
Dependent Claim
25 words
A method according to claim 3, wherein said amount of siliceous material is 2% volume to 4% volume based on the volume of petroleum jelly.
Claim 7
Dependent Claim
59 words
A method according to claim 2, wherein said siliceous material consists of submicroscopic particles having an average diameter in the range of about 70 to 140 angstroms, sintered together in a branched chain-like formation and having a surface area in the range of about 200 m 2 /g to 400 m 2 /g and said insulation is cellular polyethylene.
Claim 8
Independent Claim
81 words
A method of stabilizing the physical and electrical properties of a communication cable, comprising a plurality of conductors electrically insulated with a cellular insulating material and surrounded by a sheath, which comprises filling the interstices between the individual cellularly insulated conductors and between the cellularly insulated conductors and the sheath with a filling composition comprising petroleum jelly having a siliceous material dispersed therein in an amount of 2 to 6%, by volume, of the petroleum jelly, the provide a filled cable.
Claim 9
Independent Claim
81 words
A method of stabilizing the physical and electrical properties of a communication cable, comprising a plurality of conductors electrically insulated with a cellular insulating material and surrounded by a sheath, which comprises filling the interstices between the individual cellularly insulated conductors and between the cellularly insulated conductors and the sheath with a filling composition comprising petroleum jelly having a siliceous material dispersed therein in an amount of 2 to 6%, by volume, of the petroleum jelly, the provide a filled cable.
Claim 10
Dependent Claim
26 words
A method according to claim 6, wherein said cellular insulation is a polyolefin and said siliceous material has a relatively large surface area to mass ratio.
Claim 11
Dependent Claim
25 words
A method according to claim 7, wherein said amount of siliceous material is 2% volume to 4% volume based on the volume of petroleum jelly.
Claim 12
Dependent Claim
37 words
A method according to claim 8, wherein said polyolefin is selected from the group consisting of polyethylene and polypropylene and said cellular insulation has a cell volume of 15 to 60% of the volume of the insulation.
Claim 13
Dependent Claim
59 words
A method according to claim 6, wherein said siliceous material consists of submicroscopic particles having an average diameter in the range of about 70 to 140 angstroms, sintered together in a branched chain-like formation and having a surface area in the range of about 200 m 2 /g to 400 m 2 /g and said insulation is cellular polyethylene.
Claim 14
Dependent Claim
86 words
In a method of making a communication cable comprising providing a plurality of electric conductors surrounded by a sheath wherein the conductors are electrically insulated with a cellular insulating material and filling the interstices between the cellularly insulated conductors and the sheath with a filling composition, the improvement wherein said interstices between said conductors and said sheath are filled with a filling composition which comprises petroleum jelly having a siliceous material dispersed therein in an amount of 2 to 6%, by volume, of the petroleum jelly.
Claim 15
Dependent Claim
86 words
In a method of making a communication cable comprising providing a plurality of electric conductors surrounded by a sheath wherein the conductors are electrically insulated with a cellular insulating material and filling the interstices between the cellularly insulated conductors and the sheath with a filling composition, the improvement wherein said interstices between said conductors and said sheath are filled with a filling composition which comprises petroleum jelly having a siliceous material dispersed therein in an amount of 2 to 6%, by volume, of the petroleum jelly.
Claim 16
Dependent Claim
39 words
A method according to claim 11, wherein said cellular insulation is a polyolefin selected from the group consisting of polyethylene and polypropylene, said cellular insulation having a cell volume of 15 to 60% of the volume of the insulation.
Claim 17
Dependent Claim
42 words
A method according to claim 12, wherein said siliceous material has a relatively large surface area to mass ratio and is present in said filling composition in an amount of 2% volume to 4% volume based on the volume of petroleum jelly.
Claim 18
Dependent Claim
53 words
A method according to claim 13, wherein said siliceous material consists of submicroscopic particles having an average diameter in the range of about 70 to 140 angstroms, sintered together, in a branched chain-like formation and having a surface area in the range of about 200 m 2 /g to 400 m 2 /g.
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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) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |