Patents by Inventor Dalton Roberson

Dalton Roberson 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: 4698241
    Abstract: An automatic dual action apparatus and method for uniformly applying a coating material to the insides of tubular extensions. The apparatus is designed to handle a plurality of pipes of various lengths and inside diameters. The device provides for a unique left to right and, then, right to left application of coating material and a unique interior applicating device that prevents the non-uniform buildup of too much coating material at the beginning of the tubular extensions and not enough at the end of the tubular extensions. The apparatus is capable of being pressurized giving the apparatus the ability to slow the movement of coating material through the tubular extensions as well as to break bubbles of the material that may form on the inside of the tubular extensions being coated and to force the coating material around any pits or weld splatter that may be within the tubular extensions.
    Type: Grant
    Filed: September 19, 1985
    Date of Patent: October 6, 1987
    Inventor: Dalton Roberson