Patents by Inventor Wayne Stonemark

Wayne Stonemark 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).

  • Conveyor belt emergency stop indicator light system
    Patent number: 5263570
    Abstract: A system and method is provided for expeditiously locating an emergency situation of a conveyor. An emergency switch is connected to a conveyor to indicate an emergency situation. When the emergency switch indicates an emergency situation, a light is illuminated by an indicator circuit. The indicator light system allows an emergency situation to be easily observed at a distance from the conveyor.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: November 23, 1993
    Assignee: General Chemical Corporation
    Inventor: Wayne Stonemark