Patents by Inventor Roger R. Matarrese

Roger R. Matarrese 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: 5405573
    Abstract: The present invention addresses problems in the diamond saw blade and segment art. One aspect of the invention comprises a method for making handleable, strong, discrete, metal-clad abrasive pellets. This method comprises the steps of:(a) spraying onto a bed of gas-fluidized abrasive particles a slurry of metallic powder, a binding agent, and a volatile solvent until substantially all the abrasive particles are coated with at least about 20 wt-% of the metallic powder;(b) recovering the metal powder coated abrasive particles; and(c) heating said recovered coated particles under conditions to form a sintered continuous metal coating enveloping said abrasive particles. The resulting sintered metal-clad pellets form another aspect of the invention.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: April 11, 1995
    Assignee: General Electric Company
    Inventors: Thomas J. Clark, Roger R. Matarrese, Roger W. McEachron, Sergio Sinigaglia
  • Patent number: 5143523
    Abstract: One aspect of the present invention is a method for making metal-clad particle pellets which comprises the steps of:(a) coating diamond particles with a carbide-forming metal;(b) spraying onto a bed of gas-fluidized coated abrasive particles of step (a) a slurry of metallic powder, a binding agent, and a volatile solvent, for a time until each abrasive particle is outer coated with at least about 20 wt-% of said metallic powder, said metallic powder having a sintering temperature that is at least about 50.degree. C. lower than the melting point temperature of said carbide-forming metal;(c) recovering said metal powder-coated abrasive pellets of step (b) substantially devoid of said volatile solvent;(d) heating said recovered coated abrasive pellets under conditions to form a sintered continuous outer metal coating on said abrasive pellets; and(e) heating said pellets of step (d) at a second higher temperature to liquefy said carbide-forming metal for forming some metal carbide from said diamond particle.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: September 1, 1992
    Assignee: General Electric Company
    Inventor: Roger R. Matarrese