Abstract: An electronic method is used to determine the location of a football on a playing field using a radio transmitter which is positioned at the end of the football and energized to send signals to dispersed receiving rotating antennas which automatically become positioned to point toward the transmitter and then provide via triangulating methods, signals to a computer that determines and transmits the actual location of the football to selected receivers on or off the football field.

Abstract: An apparatus for collecting wet spray from the tires of vehicle trucks operating on wet roads comprising a plurality of vertical, parallel wiggle plates having curved air flow passages for separating the water droplets from the air.

Abstract: Apparatus and methods are disclosed for reducing spray from wheeled vehicles operating on wet roadways. Reduction is achieved by decreasing lateral airflow by the use of slanted or curved mud flaps and the addition of a streamlined air deflector. Water droplets thrown by wheels are caught in grooved surfaces which prevent further atomization and dispersal.