Pipe with an outer foam plastic covering

Details Pipe with an outer foam plastic covering Pipe with an outer foam plastic covering

1976-06-16

1978-10-10

Haroian, Harry N.

Pipes and tubular conduits

Combined

138129, 138133, 138149, 138150, 138144, 138172, 138173, 138174, F16L 5700

Patent

active

041191226

ABSTRACT:
A pipe having an outer coating of foam plastics, a tape of thermoplastics being wrapped around the foam plastics in an overlapping way, the overlapping parts being heatsealed to each other. At least one reinforcing filament is present on the original contacting surfaces of the overlaps. Preferably one straight and one zig-zag applied filament are present.

REFERENCES:
patent: 2353494 (1944-07-01), Patten et al.
patent: 2531958 (1950-11-01), Williams et al.
patent: 2731070 (1956-01-01), Meessner
patent: 3024153 (1962-03-01), Kennedy
patent: 3554237 (1971-01-01), Pelley et al.
patent: 3737353 (1973-06-01), Gilbu
patent: 3818950 (1974-06-01), Pearson
patent: 3916953 (1975-11-01), Nagayoshi et al.
patent: 3925132 (1975-12-01), Bartlow et al.

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