Patents by Inventor Francis LeClaire

Francis LeClaire 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).

  • Publication number: 20070187369
    Abstract: Weld deposit compositions with improved crack resistance, improved wear resistance, and improved hardness are provided by controlling matrix grain size and balancing Titanium and/or Niobium with Carbon and/or Boron content. Additionally, the presence of coarse chromium carbides is drastically decreased to reduce the amount of check-cracking. Preferably, the weld deposit is produced from a flux-cored or metal-cored wire. The weld deposit characteristics include a matrix having a fine grain size, small evenly dispersed carbides within the matrix, and a small amount of Carbon in the matrix.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 16, 2007
    Inventors: Ravi Menon, Jack Wallin, Francis LeClaire
  • Publication number: 20070187458
    Abstract: Compositions for stainless steel weld overlays having enhanced wear resistance are provided by incorporating second phase Titanium Carbide (TiC) and/or Niobium Carbide (NbC) into matrices of various types of stainless steel such as 316L and 420. Preferably, TiC and NbC precipitates are formed in-situ during the weld overlay process while minimizing the amount of Carbon (C) going into solid solution in the matrix of the weld overlay.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 16, 2007
    Inventors: Ravi Menon, Jack Wallin, Francis LeClaire