Patents by Inventor Stephen Luckowski

Stephen Luckowski 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).

  • Method and structure for welding an air-sensitive metal in air
    Patent number: 6874676
    Abstract: A method and structure for welding an air-sensitive metal, such as titanium, in an ambient environment containing air. The method (10) includes forming a weld (12) through a weld-through coating (14) applied to the weld face(s) (28) and heat-affected zone (30) of one or more workpiece(s) (16) to be welded. The weld-through coating may contain a reactive material that comprises one or more halogenides of alkali metal, e.g., fluorides of barium, calcium, and strontium. The weld-through coating may be applied to the workpiece using a thermal-spray process, such as a plasma-spray process (32), prior to forming the weld. The weld-through coating may be applied to the workpiece(s) generally contemporaneously with the formation of the weld just ahead of the weld or may be applied at any time prior to forming the weld.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: April 5, 2005
    Assignee: Creare Inc.
    Inventors: Nabil A. Elkouh, Michael D. Jaeger, Stephen Luckowski
  • Dual-torch gas metal arc pulse welding for overlay applications
    Patent number: 6627839
    Abstract: An apparatus and process are shown for the application of welded metal overlay deposits to cylindrical substrates for use in wear, chemical, and temperature resistance. More specifically, this apparatus permits the application of welded overlay rotating bands to steel and other alloy artillery projectiles having narrow sidewall thick nesses.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: September 30, 2003
    Inventors: Stephen Luckowski, George Scullin, Roger P. Stanton