Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1987-04-14
1989-05-16
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156184, 15624413, 2642093, 2642101, 138129, 138174, F16L 1108
Patent
active
048306940
ABSTRACT:
An improved pressure-withstanding pipe according to the invention 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: 3230127 (1966-01-01), Cleereman et al.
patent: 3945867 (1976-03-01), Heller, Jr. et al.
patent: 4587145 (1986-05-01), Kanao
patent: 4613389 (1986-09-01), Tanaka
Aftergut Jeff H.
Ball Michael W.
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