Patents by Inventor J. Aubrey Stewart

J. Aubrey Stewart 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).

  • Publication number: 20130313044
    Abstract: An extension boom apparatus provides a pair of orthogonally connected extension booms and a distal mounted personnel basket adapted for leveraged connection to an excavator.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 28, 2013
    Inventor: J. Aubrey Stewart
  • Publication number: 20120211302
    Abstract: A work platform capable of attachment to a hitch on a vehicle includes a substantially rectangular frame having a base extending along a plane and an extension arm coupling the frame to the hitch and configured to enable adjustment of the distance of the frame relative to the hitch. An elevation mechanism coupled to the frame and the attachment mechanism is configured to enable adjustment of the height of the frame relative to the plane of the hitch while an orientation mechanism coupled to the frame and configured to enable adjustment of the orientation of the frame relative to the hitch axis. The work platform may further include an angular adjustment mechanism coupled to the extension arm for modifying the angular adjustment of the work platform along an axis transverse to the vehicle centerline. The frame it may be covered on multiple sides to form an enclosed basket-like workspace.
    Type: Application
    Filed: May 7, 2010
    Publication date: August 23, 2012
    Applicant: IDEAL ENGINEERING, INC.
    Inventor: J. Aubrey Stewart