Abstract: An apparatus for simulating the game of golf and aiding golfers in improving their game by providing an indoor practice facility. The apparatus employs a unique penetrable grid consisting of parallel spaced-apart conductors in one plane positioned ahead of a second group of conductors in a second plane parallel to the first plane. The conductors are connected in an electrical circuit, and when the grid is struck by a golf ball, a conductor in one group engages a conductor in the other group thereby producing a signal that is used to provide an accurate measurement of the direction and velocity of the golf shot. The electrical circuit includes diodes and electrical connections to a units lead and a tens lead. Each pair of units and ten leads is connected to the detecting means. The detecting means includes latches to detect the contact of the first ones of the conductors in the first and second planes.

Abstract: A device for use in connection with a golf game or practice apparatus for simulating a fairway surface to enable a player to execute each shot as he would in actual play, especially enabling the player to "strike down" at the golf ball with the simulated feel of taking a chunk of turf but without damaging the simulated fairway surface. The device utilizes an artificial grass turf secured to a cushioned support that is movable in the direction of flight of the ball and compressible when the surface is struck during the golfer's swing. The movable and compressible portion of the artificial turf will return to its original position as soon as the club head is disengaged from the turf. The movable section of artificial turf together with the cushioned support thus provides the golfer with the same "feel" as if actual turf had been taken during the golf shot.