F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
26/155, 189/63
F16L 9/14 (2006.01) B29C 53/58 (2006.01) F16L 9/16 (2006.01) F16L 11/16 (2006.01) F16L 11/24 (2006.01)
Patent
CA 1281664
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 in- cludes 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 inven- tion 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.
516308
Kanao Shiro
Riches Mckenzie & Herbert Llp
LandOfFree
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