Washing machine hose

Details Washing machine hose Washing machine hose

1996-04-10

1998-01-06

Scherbel, David

Pipes and tubular conduits

Flexible

Corrugated

138137, 138141, 138119, 138DIG11, F16L 1111

Patent

active

057044015

ABSTRACT:
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 a double-layered wall. 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.

REFERENCES:
patent: 3234969 (1966-02-01), DuMont
patent: 3838713 (1974-10-01), Tubbs
patent: 3902531 (1975-09-01), Thawley
patent: 4283447 (1981-08-01), Flynn
patent: 5305799 (1994-04-01), Dal Palu 138109

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