Patents by Inventor Rodney M. McDonald

Rodney M. McDonald 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).

  • Hand truck
    Patent number: 7219903
    Abstract: A hand truck comprising a frame including a first frame portion and a second frame portion, with the first frame portion being substantially perpendicular to the second frame portion. The hand truck further includes at least two first wheels connected to a lower section of the frame, with the at least two first wheels having parallel first axes of rotation. The hand truck also includes at least two second wheels connected to the lower section of the frame, with the at least two second wheels having parallel second axes of rotation. The first axes of rotation are substantially perpendicular to the second axes of rotation, whereby the item placed on the first frame portion can be moved in a first direction along a first line parallel to the second axes of rotation and a second direction along a second line parallel to the first axes of rotation.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: May 22, 2007
    Inventors: Charles D. Grooters, Thomas J. Grooters, Rodney M. McDonald
  • Hand truck
    Publication number: 20030201615
    Abstract: A hand truck comprising a frame including a first frame portion and a second frame portion, with the first frame portion being substantially perpendicular to the second frame portion. The hand truck further includes at least two first wheels connected to a lower section of the frame, with the at least two first wheels having parallel first axes of rotation. The hand truck also includes at least two second wheels connected to the lower section of the frame, with the at least two second wheels having parallel second axes of rotation. The first axes of rotation are substantially perpendicular to the second axes of rotation, whereby the item placed on the first frame portion can be moved in a first direction along a first line parallel to the second axes of rotation and a second direction along a second line parallel to the first axes of rotation.
    Type: Application
    Filed: April 30, 2003
    Publication date: October 30, 2003
    Inventors: Charles D. Grooters, Thomas J. Grooters, Rodney M. McDonald