Patent ID: 8820364

Claim:
A flexible hose comprising a corrugated wall of which an outer surface comprises a multitude of consecutive protrusions ( 1 ) and grooves ( 2 ) and of which an inner surface comprises a multitude of internal protrusions ( 4 ) and grooves ( 3 ), wherein each internal protrusion ( 4 ) and groove ( 3 ) is respectively situated beneath a corresponding external groove ( 2 ) and protrusion ( 1 ) of the outer surface, characterized in that the corrugated wall comprises a multitude of barriers for closing off each of the multitude of internal ( 3 ) and/or external ( 2 ) grooves, each of the multitude of barriers comprising a first closing leg ( 10 , 12 ) of a first profile part and a second closing leg ( 11 , 13 ) of a second adjacent profile part, the second closing leg ( 11 , 13 ) being directed to the first closing leg ( 10 , 12 ), the first ( 10 , 12 ) and second ( 11 , 13 ) closing legs partially overlapping each other in longitudinal direction of the hose and having complementary shapes provided to slide along each other upon inward or outward bending of the hose and to form a substantially smooth inner and/or outer surface.