Patents by Inventor David John Urevich

David John Urevich 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).

  • Wire electrode with core of multiplex composite powder, its method of manufacture and use
    Patent number: 6674047
    Abstract: A cored wire electrode with a sheath and a multiplex powder composite for use in a thermal spray or welding apparatus. The composite comprises micron-sized particles and sub-micron sized particles, including nano-scale particles, the particles mechanically cooperating to promote smooth powder flow, which facilitates compaction of the cored wire electrode. The invention also includes a method of manufacture of the cored wire electrode and its method of use.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: January 6, 2004
    Assignee: Concept Alloys, L.L.C.
    Inventors: Joseph Paul Hughes, David John Urevich
  • Thermal spray apparatus and method having a wire electrode with core of multiplex composite powder its method of manufacture and use
    Patent number: 6513728
    Abstract: A thermal spray or welding apparatus including a cored wire electrode with a sheath and a multiplex powder composite. The composite comprises micron-sized particles and sub-micron sized particles, including nano-scale particles, the particles mechanically cooperating to promote smooth powder flow, which facilitates compaction of the cored wire electrode. The invention also includes a method of manufacture of the apparatus including the cored wire electrode and its method of use to deposit a low porosity coating with high levels of alloyed refractory elements that is adherent and low in oxide content.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: February 4, 2003
    Assignee: Concept Alloys, L.L.C.
    Inventors: Joseph Paul Hughes, David John Urevich
  • Multiplex composite powder used in a core for thermal spraying and welding, its method of manufacture and use
    Patent number: 6428596
    Abstract: A multiplex powder composite for use in a cored wire electrode to be deployed in a thermal spray or welding apparatus. The composite comprises micron-sized particles and sub-micron-sized particles, including nano-scale particles, the particles mechanically cooperating to promote smooth powder flow, which facilitates compaction of the cored wire electrode.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: August 6, 2002
    Assignee: Concept Alloys, L.L.C.
    Inventors: David John Urevich, Joseph Paul Hughes