Abstract: An improved system for controlling the ground speed and direction of an off-road vehicle having systems for establishing and returning a variable speed transmission to the neutral position, an improved pedal system interconnected to the neutral location and return system for driving the vehicle in either the forward or the reverse direction. The pedal system includes a forward and a reverse pedal which are positioned on the vehicle so that an operator moves the toe of his foot in the direction that he wants the vehicle to move. The forward pedal is positioned closer to the front of the vehicle than the reverse pedal.

Abstract: A cooling jacket provides personal cooling for the wearer by convection as cold carbon dioxide gas circulates within the space between the inside surface of the jacket and the wearer's body. Dry ice is held in pockets inside the jacket, aand each pocket is vented to permit the gas to diffuse through the pocket into the space. The bottom of the jacket is provided with a waist band which closes the space at the bottom and restrains the escape of the relatively heavy carbon dioxide gas.