Patents by Inventor Douglas Cadman

Douglas Cadman 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: 20050050774
    Abstract: A sidewalk maintenance vehicle for clearing snow and ice from a surface and for applying granular material to the surface comprises a tractor for providing mobility to the sidewalk maintenance vehicle and having a generally central longitudinal axis. A snow and ice removal apparatus, such as a plow blade, is mounted on the tractor so as to be disposed forwardly of the tractor and generally tranversely to the generally central longitudinal axis. A hopper is mounted on the tractor for carrying the granular material therein. The hopper has an outlet disposed longitudinally between the tractor and the plow, and a dispensing means operatively mounted at the outlet for permitting controlled dispensing of the granular material from the hopper onto the surface.
    Type: Application
    Filed: September 4, 2003
    Publication date: March 10, 2005
    Inventor: Douglas Cadman