Patents by Inventor Truett Tyler

Truett Tyler 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).

  • Method and apparatus for making welded tapered tubes
    Patent number: 4971239
    Abstract: A welded tapered tube is made by deforming a flat, elongated trapezoidal sheet of metal into an elongated, U-shaped trough in a wagon open at its top and having a U-shaped trough for a bottom. The wagon moves along a track to carry the U-shaped sheet past a series of fin rolls, which deform the U-shaped sheet into an oval-shaped, tapered tube with a seam running the length of the tube. The wagon and tube thereafter move past a welding station where the seam is forged and welded together to form an elongated, tapered tube with an oval-shaped cross section, which may be squeezed between two elongated and semicircular die cavities to form a tapered tube of circular cross section.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: November 20, 1990
    Assignee: Ameron, Inc.
    Inventors: Truett Tyler, William A. Muller, Gregory A. Hart, Michael G. Grabowski