Patents by Inventor David J. Kepniss

David J. Kepniss 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).

  • Silver-copper-nickel infiltration brazing filler metal and composites made therefrom
    Patent number: 6413649
    Abstract: The present invention is directed to brazing filler metals that can be used in the infiltration brazing of porous matrix materials without the need for a flux. The brazing filler metals contain two different Group II metals and a third metal of Group 9 and 10. A particular brazing filler metal of the invention contains silver, copper, and nickel. The invention is also directed to composite materials formed by infiltration of the brazing material into a porous matrix, and to methods for preparing the composite materials. The invention is further directed to composite articles fabricated from composite materials, including steel bearings or bushings, and to methods of preparing the composite articles.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: July 2, 2002
    Assignee: The Morgan Crucible Company plc
    Inventors: David J. Kepniss, Toshimasa Oyama
  • SILVER-COPPER-NICKEL INFILTRATION BRAZING FILLER METAL AND COMPOSITES MADE THEREFROM
    Publication number: 20010053456
    Abstract: The present invention is directed to brazing filler metals that can be used in the infiltration brazing of porous matrix materials without the need for a flux. The brazing filler metals contain two different Group II metals and a third metal of Group 9 and 10. A particular brazing filler metal of the invention contains silver, copper, and nickel. The invention is also directed to composite materials formed by infiltration of the brazing material into a porous matrix, and to methods for preparing the composite materials. The invention is further directed to composite articles fabricated from composite materials, including steel bearings or bushings, and to methods of preparing the composite articles.
    Type: Application
    Filed: March 6, 1998
    Publication date: December 20, 2001
    Inventors: DAVID J. KEPNISS, TOSHIMASA OYAMA