Patent ID: 6855024

Claim:
An apparatus for the self-propelled motion of a human subject on water comprising: (a) a first and second ski, each ski comprising a means of floatation and being longer in length than width, and each ski having a foot-support for the subject to secure a foot along the length of the ski and on the upper surface of each ski, such that the first foot is secured to the first ski and the second foot is secured to the second ski; (b) flaps secured to the bottom of each ski which allow the skis to frictionally interact with the water with sufficient force such that when the subject pushes back on one of the skis, the subject is propelled forward across the water; and (c) a frame extending from the first ski to the second ski, and connecting each of the two skis to each other such that the frame allows the skis to slide back and forth with respect to one another in a first direction (x) that is parallel to the length of the skis, and also maintains the skis at a constant distance apart from each other in the (y) direction, and also maintains each skis at substantially the same depth in the water in the (z) direction, such that as the skis move, they are kept parallel to each other in the (x) and (z) directions, and at a constant distance apart in the (y) direction, wherein directions (x), (y), and (z) are each perpendicular to each other, and wherein the frame is connected to the first ski by at least one spacer fixed with respect to the first ski, and the frame is connected to the second ski by a first part that is connected to the frame and a second part that is connected to the second ski, wherein the first part slides in a linear motion in relation to the second part, such that only the second ski moves relative to the frame.