Kink, crush, and burst resistant flexible hose

摘要

The flexible hose of the present invention is crush resistant, burst resistant, and virtually impossible to kink in normal use and is applicable to hoses that are designed for delivering virtually any kind of fluid including water, organic liquids, aqueous based herbicides, aqueous based insecticides, industrial chemicals, beverages, air, industrial gases, vacuum, and the like. The hose design of the present invention is particularly applicable to garden hoses for the delivery of water. In fact, garden hoses having the construction of the present invention are highly resistant to kinking and almost never kink when being used in conventional lawn, garden, and cleaning applications.

主权项

1. A kink, crush and burst resistant hose having a longitudinal axis and a lumen for conveyance of a fluid comprising (1) an inner tubular layer, (2) a fabric reinforcing layer wherein said fabric reinforcing layer is comprised of a first plurality of reinforcing cords which extend spirally through the hose and are substantially parallel to each other and a second plurality of reinforcing cords which extend spirally through the hose and are substantially parallel to each other, wherein the first plurality of reinforcing cords are oriented at an angle α which is within the range of 20° to 50° of the longitudinal axis of the hose, and wherein the second plurality of reinforcing cords are oriented at an angle β which is within the range of 60° to 85° of the longitudinal axis of the hose, wherein the angle α and the angle β are mutually opposite with respect to the longitudinal axis of the hose (3) an outer tubular layer, and (4) at least one reinforcing strip which is at least partially embedded within the outer tubular layer and helically wound in the direction of β with respect to the orientation of the reinforcing cords and a pitch about the lumen of said hose, wherein said hose has a ratio of bend stiffness to torsional stiffness which is greater than 1.0.