F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 11/118 (2006.01) D06F 39/08 (2006.01) F16L 11/11 (2006.01)
Patent
CA 2173927
With a desired intermediate portion as a boundary, in a hose, a corrugated wall is formed on one side of the boundary while a scalene-triangularly corrugated wall is formed on the other side of the boundary, the whole of a hose is formed of a soft synthetic resin material and a hard synthetic resin material in the form of an inside-outside double-layered wall, and with an intermediate cylindrical portion as a boundary, the soft synthetic resin material is made thicker than the hard synthetic resin material in a portion on a connection cylindrical portion side while the hard synthetic resin material is made thicker than the soft synthetic resin material in a portion on a drainage cylindrical portion side.
Fukui Hirotake
Masui Hiroyuki
Nakanishi Toshihiro
Riches Mckenzie & Herbert Llp
Totaku Industries Inc.
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