Patents by Inventor George A. Rossetti, Jr.

George A. Rossetti, Jr. 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).

  • Bonded abrasive articles filled with oil/wax mixture
    Patent number: 6086648
    Abstract: An abrasive article is provided for precision grinding purposes, and the article comprises 3 to 25 volume % vitreous bond, 3 to 56 volume % MCA abrasive grain, and 28 to 63 volume % open porosity. Substantially all porosity in the abrasive article is impregnated with a lubricant component consisting of an oil and wax mixture having an oil:wax weight ratio of about 3:1 to about 1:4.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: July 11, 2000
    Assignee: Norton Company
    Inventors: George A. Rossetti, Jr., Stephen E. Fox, Marc J. M. Tricard
  • Fiber-reinforced silicon nitride ceramics
    Patent number: 4869943
    Abstract: Very tough composites of silicon carbide fibers in silicon nitride matrices, especially reaction bonded silicon nitride matrices, can be made by precoating the fibers with pyrolytic carbon and controlling the nitridation or other process which forms the silicon nitride matrix so that a thickness of at least 5 nanometers of carbon remains in the composite after it is formed. Failure of such composites is non-catastrophic.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: September 26, 1989
    Assignee: Norton Company
    Inventors: Normand D. Corbin, Stephen D. Hartline, George A. Rossetti, Jr.