Patents Assigned to John B Coray
  • Light control keyboard
    Patent number: 6008551
    Abstract: A portable light control keyboard for electrically energizing illuminating devices using piano keys, wherein each piano key, when depressed, activates switches so as to provide power to a receptacle into which an illuminating device such as a light or bank of lights is connected. The portable light control keyboard provides a visual rhythmic accompaniment to musical performances and productions.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: December 28, 1999
    Assignee: John B Coray
    Inventor: John B Coray