Patents by Inventor Robert C. Engholm

Robert C. Engholm 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: 5396977
    Abstract: A conveyor apparatus especially useful for loading a cargo airplane utilizes several parallel transverse and longitudinal shafts on which are fixed for rotation wheels which contain around their periphery rollers which have axes of rotation in a plane perpendicular to the shaft on which the wheel is mounted. The shafts are divided into appropriate zones and subzones to provide for longitudinal, transverse and rotary movement in two zones for the conveyor as a whole. Joystick type controllers with rocker switches provide for easy actuation of the above control directions.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: March 14, 1995
    Assignee: Lantis Corporation
    Inventors: Bernard T. Lantis, Robert J. Notman, Raymond L. Hickman, Robert C. Engholm