Patents by Inventor Joseph U. Sheridan

Joseph U. Sheridan 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).

  • Abrasion resistant bend and method for small pipelines
    Patent number: 4251170
    Abstract: An abrasion resistant bend or elbow like construction for small pipelines of relatively small, i.e., 2 to 8 inch, inside diameter is formed of soft, ductile metal, normally mild steel. The outside bend portion most subject to abrasive attack is prefitted prior to use with a frame and cover arrangement which receives, maintains and provides a dustproof and pressure tight cover over a plurality of ceramic wear liners which receive the abrasive attack after the metal forming the outside bend portion is worn away in use.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: February 17, 1981
    Inventor: Joseph U. Sheridan
  • Composite abrasion resistant pipe elbow
    Patent number: 4130300
    Abstract: A composite pipe elbow adapted to resist abrasive wear wherein the outside bend portion most subject to abrasive attack is comprised of a plurality of ceramic wear blocks with the remaining portion of the elbow being composed of steel and preferably a heat-treated steel having an inner surface hardness of at least 500 Brinell.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: December 19, 1978
    Inventor: Joseph U. Sheridan