Patents by Inventor Arthur V. Petty

Arthur V. Petty 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).

  • Patent number: 6815386
    Abstract: A high-chromium refractory material that provides improved resistance to coal slag penetration is presented. The refractory mixture comprises a blend of chromium oxide, aluminum oxide and phosphates. The refractory mixture may be blended with an aggregate and cured. In addition a phosphorous oxide may be blended with chromium oxide and aluminum oxide and additionally an aggregate. The refractory mixture reduces the rate of coal slag penetration into the surface of the cured refractory.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: November 9, 2004
    Inventors: Kyei-Sing Kwong, Cynthia P. Dogan, James P. Bennett, Richard E. Chinn, Arthur V. Petty
  • Patent number: 5564620
    Abstract: Industrial applications of composites often require that the final product have a complex shape. In this invention intermetallic or ceramic phases are formed from sheets of unreacted elemental metals. The process described in this invention allows the final product shape be formed prior to the formation of the composite. This saves energy and allows formation of shaped articles of metal-intermetallic composites composed of brittle materials that cannot be deformed without breaking.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: October 15, 1996
    Inventors: James C. Rawers, David E. Alman, Arthur V. Petty, Jr.
  • Patent number: 4568652
    Abstract: A method for improving the high temperature properties of 42 to 70 percent by weight Al.sub.2 O.sub.3 containing alumina refractories by adding thereto a soluble metal compound and firing to at least C. for a time sufficient to convert the soluble metal compound to a refractory oxide or phase and for the refractory oxide or phase to react with the non-Al.sub.2 O.sub.3 constituents of the refractory for preventing or reducing the presence or effect of detrimental compounds or phases on the high temperature properties of the refractory. The resulting relatively low Al.sub.2 O.sub.3 content, porous, alumina refractory includes within its pores from 1 to 10% by weight of a refractory oxide or phase and is characterized by high temperature property values substantially greater than the corresponding values for the same refractory body without said refractory oxide or phase in its pores.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: February 4, 1986
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventor: Arthur V. Petty, Jr.