Patents by Inventor Clint J. Retterath

Clint J. Retterath 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: 5644812
    Abstract: This adjustable dock apparatus uses a planar body pivotally attached to the edge of a dock and horizontal movement of a planar extension slideably attached to and coplanar with the body to close the space between a truck trailer and the dock. A first set of power driven actuators rotate the body between vertical and horizontal, and a second set of actuators moves the extension. Inductive spaced apart sensors on the extension outer edge detects the trailer and stops the bracketing second actuators when a predetermined distance from the trailer to space the extension and trailer and match the angle between them.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 8, 1997
    Assignee: Neufeldt Industrial Services, Inc.
    Inventors: Roy E. Neufeldt, Clint J. Retterath