Cellular wall hose and method for making same

Details Cellular wall hose and method for making same Cellular wall hose and method for making same

1972-02-16

1977-08-30

Price, William

Pipes and tubular conduits

Flexible

Braided, interlaced, knitted or woven

138137, 138177, F16L 1100

Patent

active

040447995

ABSTRACT:
A method for simultaneously extruding and foaming a seamless, closed cell, cellular, tubular conduit by extruding through no-land die and restricting foaming action until the conduit has been extruded. The resultant conduit can be made either uni-layer or multiple layer, with or without reinforcing with any of the layers foamed to produce an extremely flexible hose at a wide temperature range and having great resistance to kinking.

REFERENCES:
patent: 2788804 (1957-04-01), Larkin
patent: 3289703 (1966-12-01), Brown
patent: 3547162 (1970-12-01), Shaerer
B.F. Goodrich Publication on "Spongex", received in Patent Office, Jan. 13, 1958.

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