Patent ID: 6192941
Filing Date: 2001-02-27
Classification: F16L

Abstract:
A flexible hose for transporting fluids under pressure, comprising:the hose having an axis;an internal leakproof sheath;pressure-resistant armoring, helically wound around said sheath and about said axis and substantially orthogonal to said axis, said pressure-resistant armoring, including:a T-section wire including a first base with first lateral extremities, a central rib extending up from said first base and first lateral ribs extending up from said first lateral extremities of said first base, wherein said central rib extends farther from said first base than said first lateral ribs, each said first lateral rib and said central rib defining a respective first groove;a U-section wire including a second base with second lateral extremities, second lateral ribs at said second lateral extremities of said second base, defining a second groove between said second ribs;said first lateral ribs and said central rib of said T-section wire extend radially outwardly and said second lateral ribs of said U-section wire extend radially inwardly toward said axis;said T-section and U-section wires being interconnected such that one of said second lateral ribs of said U-section wire is received in an adjacent one of said first grooves of one winding of said T-section wire and the other of said second lateral ribs is received in an adjacent one of said first grooves of a next winding of said T-section wire;one of said first lateral ribs of said T-section wire is received in an adjacent said second groove of one winding of said U-section wire and the other of said first lateral ribs is received in an adjacent said second groove of a next winding of said U-section wire;said lateral ribs being of such lengths and being so placed that one of said first and second lateral ribs of one of said T-section wire and said U-section wire extends into a respective one of the said grooves of and contacts said base of the other of said T-section wire and said U-section wire; andthe other one of said first and second lateral ribs of the other one of said T-section wire and said U-section wire extends into a respective one of the said grooves of the one of said T-section wire and said U-section wire and said other lateral ribs are of a length to define a radial clearance between said other lateral ribs and said base of the said one of said T-section wire and said U-section wire.