Cleaner hose

Pipes and tubular conduits – Flexible – Spirally wound material

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Details

138132, 138133, 138129, 138127, F16L 1111

Patent

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057789410

ABSTRACT:
A cleaner hose includes a synthetic resin pipe and four reinforcing hard steel wires disposed spirally, at predetermined intervals, in the synthetic resin pipe wall. The reinforcing hard steel wires are coated wires which are coated with synthetic resin. The pipe wall includes inner and outer layers in which an under wound tape and an upper wound tape are spirally wound while being displaced by half pitch from each other.

REFERENCES:
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patent: 3080891 (1963-03-01), Duff
patent: 3084086 (1963-04-01), Roberts et al.
patent: 3275038 (1966-09-01), Roberts et al.
patent: 3674056 (1972-07-01), D'Aprile
patent: 4091063 (1978-05-01), Logan
patent: 4380253 (1983-04-01), Mead et al.
patent: 4721637 (1988-01-01), Suzuki et al.
patent: 5416270 (1995-05-01), Kanao
patent: 5555915 (1996-09-01), Kanao

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