Hose construction

A flexible convoluted hose construction comprising, an elongated single-piece elastomeric strip made of a thermoplastic material having a base and first and second connecting means of substantially uniform thickness extending in the same direction from said base, said first connecting means extending from a central part of said base to define a lateral extension of said base outwardly of said first connecting means and said second connecting means extending from a terminal end portion of said base, said strip being disposed in a helical pattern with said first and second connecting means connected to define said hose construction having a plurality of helical turns defining alternating crests and troughs, said lateral extension in each helical turn of said strip slideably engaging said base beneath said second connecting means in underlapping relation to provide said hose construction with a substantially smooth inside surface, said smooth inside surface being provided even with said hose construction extending in a curved path due to said lateral extension slideably engaging said base portion and bridging any gap which would otherwise be produced in said inside surface along an outer radius of said curved path.