Patents by Inventor Al Siegmund

Al Siegmund 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).

  • Hardbanding material and process
    Publication number: 20020054972
    Abstract: The present invention describes a hardbanding material and a process for producing a hardbanding material which greatly extends the life of tool joints and sections of steel pipe to which the material is applied. Granules of tungsten carbide are dropped into a melt puddle which is formed when a low carbon chrome based alloy is welded to an outside surface of a drill pipe. The tungsten carbide has a size ranging from about {fraction (25/40)} to about {fraction (40/60)} mesh, with a hardness greater than 3000 HV. Alternatively, the tungsten carbide has a size of {fraction (40/60)} mesh with a hardness of greater than 1700 HV.
    Type: Application
    Filed: October 10, 2001
    Publication date: May 9, 2002
    Inventors: Lloyd Charpentier, Al Siegmund
  • Metallized layer corrosion protection system for pipe or tubing
    Patent number: 5853834
    Abstract: A system for protecting sections of pipe or tubing from corrosion includes depositing a continuous, low-porosity, non-corrosive, metallized layer within the end portions of a section of pipe or tubing and on its end walls.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: December 29, 1998
    Assignee: ICO, Inc.
    Inventor: Al Siegmund