Pipes

Details Pipes Pipes

1973-11-29

1976-07-06

Queisser, Richard C.

Pipes and tubular conduits

Distinct layers

Bonded to each other

138173, F16L 906, F16L 916

Patent

active

039676501

ABSTRACT:
A pipe of fiber reinforced thermoplastic material is provided wherein the wall consists of at least one layer having two coaxial cylindrical shells between which a corrugated layer is disposed. The outwardly facing wave peaks of the corrugated layer are anchored to the inside of the outer shell and the inwardly facing wave peaks are anchored to the outside of the inner shell. The spaces between the corrugated layer and the outer layer and inner shell, respectively, are filled with a suitable material, preferably foam plastic material.

REFERENCES:
patent: 2409249 (1946-10-01), Brown
patent: 2877150 (1959-10-01), Wilson
patent: 3532132 (1970-10-01), Rubenstein
patent: 3677303 (1972-07-01), Martin

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