Pressure-withstanding pipe

Details Pressure-withstanding pipe Pressure-withstanding pipe

1986-08-13

1989-01-10

Bryant, III, James E.

Pipes and tubular conduits

Spirally seamed

138129, 138150, 138174, F16L 1108

Patent

active

047966726

ABSTRACT:
An improved pressure-withstanding pipe is made of a soft synthetic resin or rubber material with hard synthetic resin reinforcing bodies helically wound and embedded in the pipe wall at predetermined intervals. A thin reinforcing belt member is also helically wound and embedded in the pipe wall and the opposite side end portions of the belt are anchored in adjacent ones of the rigid reinforcing bodies. The method of manufacturing a pipe according to the invention includes a step of extruding the pipe forming body by feeding rigid synthetic reinforcing material and soft synthetic material to the extruder and, at the same time, passing the thin reinforcing belt member therethrough. The resultant pipe according to the invention is highly resistant to extension and other deformation due to pressure exerted from the material being transported as well as highly resistant to external pressure and deformation from such pressure.

REFERENCES:
patent: 3548882 (1970-12-01), Rinker
patent: 3890181 (1975-06-01), Stent et al.
patent: 3919026 (1975-11-01), Mizutani et al.
patent: 4140154 (1979-02-01), Kanao
patent: 4383555 (1983-05-01), Finley
patent: 4587145 (1986-05-01), Kanao
patent: 4613389 (1986-09-01), Tanaka

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