Corrugated flexible hose
AssigneeDayco Products, Inc.
InventorsWilliam J. Schaerfl, Edward Romero
Life of this patent
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Abstract
A corrugated non-reinforced polymeric flexible hose which has at least the outer crests formed with flat apices. The valleys of the corrugations may also have flat apices. The crests and valleys are connected by side walls extending at a shallow angle.
Claims10
In a hose having a longitudinal axis formed of polymeric material and having a plurality of annular corrugations, said corrugations comprising a plurality of alternating crests and valleys interconnected by side walls, each of said crests having a flat apex;
- the improvement wherein said side walls are at an angle of between 5 and 8 degrees with respect to a plane transverse to said longitudinal axis.
In a hose having a longitudinal axis formed of polymeric material and having a plurality of annular corrugations, said corrugations comprising alternating crests and valleys interconnected by side walls each of said crests having a flat apex;
- the improvement wherein said side walls are at an angle of between 5 and 8 degrees with respect to a plane transverse to said longitudinal axis, and has a stretch ratio of approximately 1.75 to 1.00 from the natural condition thereof with an approximately 5 pound pull thereon in a longitudinal direction.
Dependencies are inferred from the claim text.