Patents by Inventor Larry F. Rowe

Larry F. Rowe 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: 5325932
    Abstract: A down remaining apparatus has an upper stabilizer which supports the down reaming apparatus in the bored hole. A plurality of wheel assemblies are radially attached to the hub of the upper stabilizer. Each of the wheel assemblies has rotatable tires oriented against the bored hole wall, and a rotatable overload wheel which contacts the tunnel wall upon compression of the tires. A weight assembly comprising a plurality of stacked plates is secured to the frame of the down reaming apparatus and has manways therethrough which allow passage of workers. A lower stabilizer provides additional support for the down reaming apparatus. A plurality of wheel assemblies are radially attached to the hub of the lower stabilizer. Each of the wheel assemblies has a rotatable wheel pivotally attached to the lower stabilizer hub and spaced therefrom by a compressible bumper which reacts against the bored hole wall to stabilize the down reaming apparatus.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: July 5, 1994
    Assignee: The Robbins Company
    Inventors: Llewellan Anderson, Brian W. Kelley, Larry F. Rowe, Thomas C. Whitehouse