Patents by Inventor Arthur R. Geary

Arthur R. Geary 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 treatment of single crystals
    Patent number: 4583608
    Abstract: Concepts relating to the heat treatment of single crystal superalloy articles are disclosed. A first concept is the use of a heat treatment sequence which includes incipient melting of the article being heat treated followed by one or more steps which essentially heal the incipient melting damage. A second concept relates to the treatment of previously heat treated single crystal articles which have incipient melting. Methods are disclosed for healing this damage and for recovering the mechanical properties of such articles. A third concept disclosed is a particular cycle which permits effective heat treatment of a specific single crystal alloy composition.
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: April 22, 1986
    Assignee: United Technologies Corporation
    Inventors: Thomas T. Field, Otis Y. Chen, Arthur R. Geary, Richard W. Salkeld, Nicholas E. Ulion