Patents by Inventor Eric C. Crump

Eric C. Crump 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).

  • Method and apparatus for controlling conveyor
    Patent number: 6135268
    Abstract: A clearing method for use with a conveyor belt driven by a reversible motor for essentially automatically eliminating swarf or other obstructions along the belt including an clearing process including sensing motor load and comparing sensed load to a maximum load, when the sensed load exceeds the maximum, stopping the belt, reversing the belt, stopping the belt again and driving the belt forward, and repeating this process until the obstruction is eliminated or a predetermined number of clearing processes have been performed. Also an apparatus for implementing the method including an inverter.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: October 24, 2000
    Assignees: Mazak Corporation, Jorgensen Conveyors, Inc.
    Inventors: Jimmie D. Couch, Eric C. Crump