Patents by Inventor Vernon T. Stellman

Vernon T. Stellman 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).

  • Trenching System
    Publication number: 20110016754
    Abstract: A system for uncovering and sealing a narrow trench. The system comprises several subsystems, including a work machine, a frame for providing a seal with the surface to be trenched, a saw blade, a vacuum system, a system for placing product, and a resealer. The blade includes rotatable tooth bits, which may be rotated and secured to create a blade for narrower or a wider trench. A removable cover and the blade are easily changeable. A ground engaging surface on the frame is manipulated to maintain a seal with changing ground surfaces. Additionally, the vertical location of the blade within the frame is adjustable to create a deeper or shallower trench.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 27, 2011
    Applicant: The Charles Machine Works Inc.
    Inventors: Michael C. Ruhl, David R. Bazzell, Vernon T. Stellman, Steven P. Seabolt, Andrew A. Schuermann