Patents Assigned to Astro
  • Metal alloy composition
    Patent number: 4038074
    Abstract: A nickel-chromium based alloy comprised of nickel, chromium, molybdenum, cobalt, silicon and boron to which tin and indium is added as essential alloying elements to provide markedly improved fluidity, castability, workability and adhesion to porcelain with lighter oxide filed without impairing the strength and resistance of the alloy to deformation. The combination of properties makes the alloy particularly useful as a dental alloy for making bridges, crowns and inlays and for casting jewelry.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: July 26, 1977
    Assignee: Astro
    Inventor: Daniel M. Davitz