Patents by Inventor Donald L. Huth

Donald L. Huth 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).

  • Heat resistant alloy castings
    Patent number: 4236921
    Abstract: A heat resistant ferrous metal alloy casting having improved resistance to thermal fatigue and comprising chromium, nickel, cobalt, tungsten and titanium.
    Type: Grant
    Filed: March 2, 1979
    Date of Patent: December 2, 1980
    Assignee: Abex Corporation
    Inventors: Bruce A. Heyer, Donald L. Huth
  • Iron-chromium-nickel heat resistant castings
    Patent number: 4077801
    Abstract: Castings of carbon 0.25/0.8, nickel 8/62, chromium 12/32, tungsten 0.05/2, titanium 0.05/1, balance iron (substantially) of austenitic microstructure, essentially free of cobalt and molybdenum, and not requiring heat treatment to develop service properties considerably improved compared to standard ACI alloy grades.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: March 7, 1978
    Assignee: Abex Corporation
    Inventors: Bruce A. Heyer, Donald L. Huth