Linearly retractable pressure hose structure

A pressure hose for transporting a fluid material at a pressure substantially greater-than ambient pressure, comprising:

• a) a flexible elongated body having a first end, a second end, a central longitudinal axis, and an interior channel for transporting a fluid material from the first end, to the second end, and ultimately into an ambient environment, wherein the flexible elongated body is sufficiently flexible longitudinally to linearly retract and extend between a retracted position and an extended position, respectively, wherein the flexible elongated body has a fluid path-length at least twice as long in the extended position as it does in the retracted position;
• b) a biasing means connected to the flexible elongated body in at least two places for generating a first force tending to longitudinally retract the flexible elongated body;
• c) wherein the first end is adapted to attach to a source of the fluid material, wherein the second end is adapted to attach to a means for restricting the flow of the fluid material flowing through the interior channel during use, wherein the means for restricting the flow results in a greater internal pressure within the interior channel, wherein the greater internal pressure generates a second force tending to extend the flexible elongated body longitudinally along its length, and
• d) wherein the biasing means defines an outside radius centered around the central longitudinal axis, wherein the outside radius defined by the biasing means is substantially larger than an inside radius of the flexible elongated body when in the retracted position, whereby the flexible elongated body is stowed substantially inside the biasing means when in the retracted position.