Patents by Inventor Kosta L. George

Kosta L. George 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: 5492771
    Abstract: An improved method of making a monolayer abrasive tool using a relatively low melting point, soft filler metal alloy braze which possesses sufficiently high yield strength combined with a relatively high ductility and low elastic modulus to produce an exceptional bond between a monolayer of superabrasive particles and the tool substrate. The steps of the brazing process include applying a layer of the filler metal alloy including a an active metal in either pre-alloyed or as a mixture with the metal alloy and a monolayer of superabrasive crystals over the filler metal layer. This assembly is heated in a mon-oxidizing atmosphere such as a vacuum to melt the alloy and braze bond the superabrasive particles to the tool substrate. The alloy bond formed possess the properties of a ductility of at least 20 percent elongation, an elastic modulus of less than 15.times.10.sup.6 or less, and a yield strength preferably at least about 45,000 to 50,000 psi.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: February 20, 1996
    Assignee: Abrasive Technology, Inc.
    Inventors: James T. Lowder, Roy F. Wielonski, Kosta L. George