Patents by Inventor John J. Hauser

John J. Hauser 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).

  • Wear and corrosion resistant articles made from pm alloyed irons
    Patent number: 4765836
    Abstract: A powder-metallurgy alloy article having a good combination of wear resistance and corrosion resistance. The article is further characterized by an attainable minimum hardness after heat treatment of 60R.sub.c and a martensitic structure. The article is made from prealloyed particles of the composition, in percent by weight, carbon 2.5-5, manganese 0.2-1, phosphorus 0.10 maximum, sulfur 0.10 maximum, silicon 1 maximum, nickel 0.5 maximum, chromium 15-30, molybdenum, 2-10 vanadium 6-11, nitrogen 0.15 maximum and balance, iron. The article has a fine, uniform distribution of a MC and other carbide phases.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: August 23, 1988
    Assignee: Crucible Materials Corporation
    Inventors: John J. Hauser, William Stasko, Kenneth E. Pinnow