Patents by Inventor Tommy J. C. Chang

Tommy J. C. Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Automatic golf ball teeing apparatus
    Patent number: 4177996
    Abstract: A device for storing and dispensing one golf ball at a time onto a chute that serves as a golf tee. The golf tee chute is pivotally mounted so that when a golf ball on the tee of the chute is struck, the chute pivots to operate an escapement to permit one golf ball, stored in the device to roll down the golf tee chute to the tee position. The device is formed of a housing with a top opening that leads to a spiral pathway formed of wires, which lead to the golf tee chute.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: December 11, 1979
    Inventor: Tommy J. C. Chang