Patents Examined by Mark Vertiz Bell
  • Patent number: 4178187
    Abstract: Mixed oxide compounds La.sub.2 O.sub.3.11Al.sub.2 O.sub.3, NdAlO.sub.3 and nonstoichiometric MgAl.sub.2 O.sub.3 are suitable for making cores and molds for casting advanced superalloy materials such as NiTaC-13.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: December 11, 1979
    Assignee: General Electric Company
    Inventors: Irvin C. Huseby, Frederic J. Klug