Patents by Inventor Jacques J. A. Thomas

Jacques J. A. Thomas 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).

  • Blasting nozzle with welded lance head for the agitation of baths
    Patent number: 6234406
    Abstract: A metallurgical or chemical oxygen nozzle including an oxygen lance head (1) for pointing at a metallurgical melt. The nozzle comprises a front surface (40) and an assembly of at least two substantially concentric tubes (20, 30), said front surface (40) being made of electrolytic copper. The front surface (40) is joined (52) to said tubes (20, 30) by high-energy density welding, the head is made of a number of head elements each of which consists of a material specifically selected for the respective head element, and said head elements are all joined by high-energy density welding.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: May 22, 2001
    Inventor: Jacques J. A. Thomas