Patents by Inventor Wayne K. Washington

Wayne K. Washington 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).

  • Patent number: 5563936
    Abstract: A lockout telephone comprising a keyswitch for controlling the operation of the telephone's push button keypad and speed dial buttons. The telephone can have a keyswitch with either ON and OFF positions or ON, SPEED DIAL ONLY, and OFF positions. When the keyswitch is in the ON position, the telephone is fully operational. When the keyswitch is in the SPEED DIAL ONLY position, only the speed dial buttons are operational. When the keyswitch without a SPEED DIAL ONLY position is in the OFF position, only the the keypad is inoperative. When the keyswitch with ON, SPEED DIAL ONLY, and OFF positions is in the OFF position, both the keypad and speed dial buttons are inoperative. The lockout telephone can also have an emergency dial button which is always operational, regardless of the keyswitch position.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 8, 1996
    Inventor: Wayne K. Washington