Patents by Inventor Patrick M. McGraw

Patrick M. McGraw 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).

  • Portable bulk storage container
    Patent number: 5385233
    Abstract: A portable container 10 for containing liquids has a circular top wall portion 12, a circular exterior bottom wall portion 14, and a cylindrical side wall portion 16 extending vertically between the top wall portion 12 and exterior bottom wall portion 14. The container 10 includes a plurality of forklift tubes 18 attached to the exterior bottom wall portion 14 for receiving the forks 20 of a forklift vehicle 22. The side wall portion 16 has a drain opening 24 and a valve 26 disposed therein for draining the liquids from the container. The container 10 is characterized by an interior false bottom portion 30 abutting the side wall portion 16 and sloping downwardly toward the drain opening 24 for causing complete drainage of the liquids contained within the container 10.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: January 31, 1995
    Assignee: CMI International, Inc.
    Inventors: Richard D. McKibben, Patrick M. McGraw, Charles Simpson, Kenneth D. McKibben, Daniel D. Minor