Abrasion resistant composite hose and process for producing the

Details Abrasion resistant composite hose and process for producing the Abrasion resistant composite hose and process for producing the

1997-05-16

1999-05-04

Brinson, Patrick F.

Pipes and tubular conduits

Flexible

Spirally wound material

138173, 138150, 138144, 138122, F16L 1100, F16L 914

Patent

active

058992375

ABSTRACT:
An abrasion resistant composite hose comprises (a) an outer layer composing a spiral tape of a soft synthetic resin, where adjacent side edges of the spiral tape join each other to form the outer layer, (b) a spiral reinforcement of a hard synthetic resin for retaining and reinforcing the outer layer, and (c) an inner layer comprising a spiral strip formed by a rubber, where adjacent side edges of the spiral strip join each other to form the inner layer, and the outer layer and inner layer join each other. In such a composite hose having this structure, at least a periphery of the strip except an exposed surface to an inner surface of the hose is covered with a covering element comprising a rubber adhesive to the soft synthetic resin constituting the outer layer, and the rubber strip is formed by a rubber having higher abrasion resistance than the covering element to obtain a composite hose having enhanced abrasion resistance.

REFERENCES:
patent: 2330651 (1943-09-01), Welger
patent: 3047026 (1962-07-01), Kahn
patent: 3186438 (1965-06-01), Holmgren
patent: 4067362 (1978-01-01), Jackman
patent: 4140154 (1979-02-01), Kanao
patent: 4304266 (1981-12-01), Kutnyak et al.
patent: 4350547 (1982-09-01), Kanao
patent: 4490575 (1984-12-01), Kutnyak
patent: 4628966 (1986-12-01), Kanao
patent: 5046531 (1991-09-01), Kanao
patent: 5806567 (1998-09-01), Fukui et al.

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