Patents by Inventor Robert Aaron Johnson

Robert Aaron Johnson 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).

  • Pipeline construction safety platform
    Patent number: 6830127
    Abstract: A buried pipeline construction laser alignment survey platform mountable on manhole sections. The platform has a platform deck and two opposing sets of foldable handrail mounted on the perimeter of the platform deck which are inter-connected by safety chains to complete a safety perimeter. A manhole access in the platform deck has a slideable access cover providing for a closed set-up position, an open access position, and a partially open laser alignment position. One or more sets of anchor pedestals on the bottom of the platform deck provide for securing the platform to manhole sections of one or more diameters.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: December 14, 2004
    Inventor: Robert Aaron Johnson
  • Pipeline construction safety platform
    Publication number: 20040040784
    Abstract: A buried pipeline construction laser alignment survey platform mountable on manhole sections. The platform has a platform deck and two opposing sets of foldable handrail mounted on the perimeter of the platform deck which are inter-connected by safety chains to complete a safety perimeter. A manhole access in the platform deck has a slideable access cover providing for a closed set-up position, an open access position, and a partially open laser alignment position. One or more sets of anchor pedestals on the bottom of the platform deck provide for securing the platform to manhole sections of one or more diameters.
    Type: Application
    Filed: August 29, 2002
    Publication date: March 4, 2004
    Inventor: Robert Aaron Johnson