A water hose includes a helically shaped coiled tube (12) having interior and exterior elliptical cross-sections with a flexural modulus greater than the flexural modulus of a coiled tube having interior and exterior circular cross-sections and the same neutral center line length as the elliptical cross-sections, but otherwise having the same properties as the elliptical cross-sections. The tube is made of extruded plastic resin having a durometer hardness measurement approximately in the range of 70-80 Shore A and has on its periphery ridges extending longitudinally at right angles to the elliptical cross-sections. In first and second embodiments, the elliptical cross-sections have major and minor axes respectively extending in the direction of the coil longitudinal axis and in planes extending at right angles to the longitudinal axis, and vice versa. <IMAGE>
申请公布号
EP1378697(A2)
申请公布日期
2004.01.07
申请号
EP20030008468
申请日期
2003.04.11
申请人
MICASA TRADING CORPORATION D/B/A IMPEX SYSTEMS GROUP, INC.