Patent ID: 9412502
Filing Date: 2016-08-09
CPC Classification: H01B

Claim Text:
1. A method of making a down-hole cable, the method comprising the steps of: extruding a pre-foamed foamable filler layer about an insulated conductor, wherein the pre-foamed foamable filler layer further comprises a fluoropolymer and an additive; applying an armor shell about the insulated conductor and the pre-foamed foamable filler layer with additive; pressure-testing the armor shell by pressurizing at least one cavity formed between the pre-foamed foamable filler layer with additive and the armor shell; and after pressure-testing, foaming the foamable filler layer with additive, wherein at least a portion of the foamed filler layer with additive bonds to an interior surface of the armor shell, wherein the foamed filler layer with additive withstands a pullout force at temperatures of temperatures above 200° C.