Patents by Inventor Robert David Lerum

Robert David Lerum 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).

  • Pump frame
    Patent number: 4003504
    Abstract: A pump assembly including a wheeled frame supporting a pump in an elevated position with the intake to the pump depending below the pump and into the interior of a container equipped with a bail, the container being supported by the frame from the bail in a manner which allows the container to freely pivot to maintain an upright condition during lifting of the container by tilting of the frame on the wheels for transportation of the frame, pump and container as a unit.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: January 18, 1977
    Assignee: Spray Tech Corporation
    Inventors: Gerald William Johnson, Robert David Lerum