Heat-insulated conduit

Details Heat-insulated conduit Heat-insulated conduit

1980-09-30

1982-09-28

Little, Willis

Pipes and tubular conduits

Distinct layers

With intermediate insulation layer

138137, 138122, F16L 914

Patent

active

043513662

ABSTRACT:
A heat-insulated conduit provided by the invention has a tube, a sheath of heat insulating foamed material disposed around the tube, wires wound around the sheath of foamed material which deform the sheath locally along annular lines, and a tubular film disposed around the sheath in line or point contact with the deformed sheath.

REFERENCES:
patent: 3030250 (1962-04-01), Losse
patent: 3130753 (1964-04-01), Monnen
patent: 3180364 (1965-04-01), Ohlson
patent: 3289703 (1966-12-01), Brown
patent: 3374856 (1968-03-01), Wirt
patent: 3388724 (1968-06-01), Mowell et al.
patent: 3547162 (1970-12-01), Schaerer

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