Patents by Inventor Paul E. Stump

Paul E. Stump 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).

  • Drawing technique
    Patent number: 4232541
    Abstract: A method and apparatus for improving the interior or exterior surface smoothness of a tube shell during cold draw operations is disclosed wherein the final reduction of the tube shell is completed within the die land.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: November 11, 1980
    Assignee: The Babcock & Wilcox Company
    Inventor: Paul E. Stump
  • Tube drawing technique
    Patent number: 4161112
    Abstract: A method of tube drawing a cold finished stepped internal diameter tube utilizing a novel mandrel plug having compound working surfaces designed to automatically adjust to the varying internal diameters formed in a tube hollow to be worked as it is drawn through a die.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: July 17, 1979
    Assignee: The Babcock & Wilcox Company
    Inventor: Paul E. Stump
  • Drawing technique
    Patent number: 4148207
    Abstract: A method and apparatus for improving the interior or exterior surface smoothness of a tube shell during cold draw operations is disclosed wherein the final reduction of the tube shell is completed within the die land.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: April 10, 1979
    Assignee: The Babcock & Wilcox Company
    Inventor: Paul E. Stump