Patents by Inventor William J. Kelso

William J. Kelso 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: 8568501
    Abstract: A transportable field containment system with transparent hood. The transportable field containment system being easily and rapidly deployable and transportable by virtue of its relatively small size and light weight, a collapsible transparent hood that covers the containment area over a work site on the ground, the hood including detachable or folding side panels and removable door panels. The system preferably includes an exhaust component that creates negative air pressure in the containment area under the hood, thereby drawing air that contains hazardous substances, that may be released while the work is being conducted, through one or more off-gas filters.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 29, 2013
    Assignee: Parsons Corporation
    Inventor: William J. Kelso
  • Publication number: 20120258653
    Abstract: A transportable field containment system with transparent hood. The transportable field containment system being easily and rapidly deployable and transportable by virtue of its relatively small size and light weight, a collapsible transparent hood that covers the containment area over a work site on the ground, the hood including detachable or folding side panels and removable door panels. The system preferably includes an exhaust component that creates negative air pressure in the containment area under the hood, thereby drawing air that contains hazardous substances, that may be released while the work is being conducted, through one or more off-gas filters.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 11, 2012
    Inventor: William J. Kelso
  • Patent number: D475551
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: June 10, 2003
    Assignee: Zenith Products Corp.
    Inventor: William J. Kelso
  • Patent number: D416416
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: November 16, 1999
    Assignee: Zenith Products Corp.
    Inventors: William J. Kelso, James A. Hofman
  • Patent number: D416728
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: November 23, 1999
    Assignee: Zenith Products Corp.
    Inventors: William J. Kelso, James A. Hofman