Composite hose
AssigneeDantec Ltd.
InventorEric J. Davis
Life of this patent
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Abstract
A composite hose comprising an inner helical core (1) made of metal, a plurality of layers of plastics material fibres and films (2, 2a, 2b, 2c) wound on the helical core (1), at least one layer of glass cloth (3) and at least one layer (4) of aluminium foil disposed adjacent one another and wound onto the layers of plastics material fibres and films (2) and an outer helical former (7) made of metallic material. In an alternative embodiment, at least one layer of ceramic fibres (5) is wound around the plastics material, which layer (5) is covered by at least one winding of a protective layer (6a; 6b). Such hoses are made by winding the layers successively one upon another on a rotating mandrel.
Claims12
A fire-resistant composite hose for transporting flammable liquids, comprising:
- an inner helical core of a metallic material;
- a first layer of plastics material fibers helically wound on said inner core to prevent the inner core from damaging the hose;
- a plurality of layers of plastics material films helically wound around the first fibers layer to seal the hose and to prevent flammable liquid from permeating through the hose;
- a second layer of plastics material fibers wrapped around the films layer for providing a working pressure to the hose;
- at least one layer of glass cloth for thermal insulation and at least one layer of aluminum foil to reflect heat disposed adjacent one another and helically wound onto the second layer of plastics material fibers;
- and
- an outer helical former made of metallic material wound around the layers of glass cloth and aluminum foil.
A fire-resistant composite hose for transporting flammable liquids, comprising:
- an inner helical core of a metallic material;
- at least one reinforcement winding layer of a plastics material fiber helically wound around said inner core;
- a plurality of sealant winding layers of plastics material films helically wound around said fiber winding layer;
- at least one further reinforcement winding layer of plastics material fibers helically wound around said plurality of film winding layers;
- at least two thermal barrier winding layers helically wound around said at least one further reinforcement winding layer of plastics material fibers, said thermal barrier winding layers comprising, alternately, aluminum foil and glass cloth;
- and
- an outer helical former of a metallic material helically wound around said thermal barrier winding layers.
Dependencies are inferred from the claim text.