Patents by Inventor Duane Hartwell

Duane Hartwell 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: 6701767
    Abstract: A trailered brake workstation mounts on the horizontal frame of a two-wheeled trailer, a pair of longitudinally-spaced transverse horizontal guide bars at an elevated position above the frame. The guide bars mount slides which are secured to the bottom of a longitudinally-disposed brake. Thus the brake, via the slides, can be shifted laterally on the horizontal guide bars between an internal or centered position it which it may be locked for hauling and storing, and a side position in which it may be locked and available for operative use. A box and a cover protect the brake in the internal or centered position from the elements. A work table may also be transported, being stored in the throat of the brake during transportation, and disposed for use on the other side of the trailer when the brake is operative.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: March 9, 2004
    Inventors: Duane Hartwell, Jonathan Wright
  • Publication number: 20030150251
    Abstract: A trailered brake workstation mounts on the horizontal frame of a two-wheeled trailer, a pair of longitudinally-spaced transverse horizontal guide bars at an elevated position above the frame. The guide bars mount slides which are secured to the bottom of a longitudinally-disposed brake. Thus the brake, via the slides, can be shifted laterally on the horizontal guide bars between an internal or centered position it which it may be locked for hauling and storing, and a side position in which it may be locked and available for operative use. A box and a cover protect the brake in the internal or centered position from the elements. A work table may also be transported, being stored in the throat of the brake during transportation, and disposed for use on the other side of the trailer when the brake is operative.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventors: Duane Hartwell, Jonathan Wright