F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/49
F16L 11/11 (2006.01) F16L 53/00 (2006.01) F16L 59/02 (2006.01) H05B 3/58 (2006.01)
Patent
CA 1068622
ABSTRACT A tubular line member, such as a sampling tube for conveying fluids, is provided with heating means and is covered by at least two layers of insulation each of which comprises a foam material, such as a polyurethane. In preferred embodiments, the layers of insulation are arranged in helically counter- wrapped relationship and each comprises a low density foam material and a reinforcing material, for example, a high density foam material. Such insulation may especially be formed, for example, by helically counter-wrapping two laminated tapes each of which consists of a width of low density foam material and a width of high density foam material.
273190
Guttman Allan
Mclaughlin Charles W.
LandOfFree
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