Abstract: Various embodiments are described of a liquid-powered dynamometric generator built into a shoe, which has at least two layers as part of its sole. The first or lower layer of the sole is a pad formed of an elastomeric material which contains a liquid within a set of chambers, one in the heel area and one in the toe area of the sole. The ambulatory foot movement inside the shoe puts pressure on the fluid and makes it flow from one chamber area to another. Contained between the chambers is a turbine that is mounted on rotary bearings and positioned within the path of the fluid flow. Due to foot motion, the fluid will flow in an oscillatory fashion while ambulating and thereby cause the turbine to turn.

Abstract: This invention relates to a product built into the sole of a shoe that will cool and dehumidify one's feet, providing superior comfort to the feet of the person wearing the shoe. The invention comprises two layers, one of which has a liquid-filled area with a liquid powered turbine and the other layer containing a built-in air fan or fans or other turbines which are powered by the liquid turbine responding to the liquid movement in the other layer. These two layers are molded or otherwise connected to a shoe sole.