Electricity: conductors and insulators – With fluids or vacuum – With fluid stops
Patent
1973-08-15
1976-03-16
Powell, William A.
Electricity: conductors and insulators
With fluids or vacuum
With fluid stops
106 15FP, 106270, 156 47, 174121A, 260 285D, 260 457PH, 260 338UA, 260899, 427117, 427434, H02G 1500
Patent
active
039447170
ABSTRACT:
A telephone service cable which runs from a distribution cable to a subscriber's premises or to a pay station is another link in a buried communications system having a water-resisting capability. A spirally quaded core comprised of individually insulated conductors is advanced through a bath of a flame-retardant, water-resistant composition prior to enclosing the core with a jacket. The interstices in the core and between the core and an inner jacket are caused to be filled with the composition which comprises a liquid system and a solid system. The liquid system includes a chlorinated paraffin while the solid system includes a polyvinyl chloride resin and a chlorinated polyethylene. An epoxy stabilizer and a phosphite stabilizer may be added to prevent thermal degradation of the filling composition.
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Lyons, "The Chemistry and Use of Fire Retardants" (Rec'd 1-1972), p. 293.
Hacker Joseph Michael
Kaufman Stanley
Sabia Raffaele Antonio
Sauer Earl Salvator
Tidd, Jr. Charles Edward
Bell Telephone Laboratories Inc.
Gallagher J. J.
Powell William A.
Somers E. W.
Western Electric Company Inc.
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