Patents by Inventor Millard A. Vaughn

Millard A. Vaughn 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: 4685662
    Abstract: Pipe alignment apparatus comprising: a tubular mandrel having a central bore therethrough, the opposite ends of which terminate in outwardly diverging first and second frusto-conical surfaces, the mandrel being divided into a plurality of longitudinal sections, allowing the mandrel to be radially expanded. A rod member extends through the central mandrel bore. First and second axially spaced frusto-conical members are carried on the rod and are axially movable toward each other upon manipulation of the rod member to wedgedly engage the first and second frusto-conical surfaces, respectively, effecting radial expansion of the mandrel for firmly engaging the interior of first and second pipe sections to effect the axial alignment thereof.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: August 11, 1987
    Inventor: Millard A. Vaughn