Patents by Inventor David C. Tonkin

David C. Tonkin 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 of providing temporary support for an extended conveyor belt
    Patent number: 5938004
    Abstract: A method of providing a temporary support for a length of belt added to extend an existing fixed conveyor belt having a tail roller. A plurality of separate discrete conveyor belt support stands are provided. The stands are collapsed together as a group and are moveably supported on a moveable support structure. The stands are joined to adjacent stands by a load bearing connector incapable of supporting vertical loads which permits separation of the stands to a predetermined distance. The tail roller is advanced. The moveable support structure is advanced toward the tail roller. At least one support stand is advanced on the support structure toward the tail roller thereby providing support for any additional length of conveyor belt that is added to the system.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: August 17, 1999
    Assignee: Consol, Inc.
    Inventors: Margaret A. Roberts, David C. Tonkin