Reinforced hose

Details Reinforced hose Reinforced hose

1994-04-04

1994-12-13

Simone, Timothy F.

Pipes and tubular conduits

Flexible

Braided, interlaced, knitted or woven

138137, 138153, F16L 1100

Patent

active

053721632

ABSTRACT:
A reinforced hose has an inner tube made of rubber, an inner reinforcing layer made of aromatic polyamide yarn formed on the inner tube, an intermediate layer made of rubber formed on the inner reinforcing layer, an outer reinforcing layer made of synthetic yarn formed on the intermediate layer which has a heat shrinkage ratio at dried condition of over about 0.5% due to the temperature of a curing process, and a covering layer made of rubber being formed on the outer reinforcing layer. By providing the inner reinforcing layer of aromatic polyamide yarn, the reinforced hose of the present invention has a high stretching strength. Furthermore, by making the outer reinforcing layer of synthetic yarn, which has a heat shrinkage ratio at dried condition of over about 0.5% due to the temperature of a curing process, the reinforced hose of the present invention can hardly be expanded by the pressure of inside fluid.

REFERENCES:
patent: 1455359 (1923-05-01), Schulthess
patent: 1798798 (1931-03-01), Leguillon
patent: 3605818 (1971-09-01), Balchan
patent: 3750712 (1973-08-01), Brand
patent: 4111237 (1978-09-01), Mutzner et al.
patent: 4130139 (1978-12-01), Haren
patent: 4585035 (1986-04-01), Piccoli
patent: 4870995 (1989-10-01), Igarashi et al.
patent: 4998565 (1991-03-01), Kokuryu et al.

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