Patents by Inventor Richard M. Andrews

Richard M. Andrews 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).

  • Infiltrant for metal bonded abrasive articles
    Patent number: 5505750
    Abstract: The present invention is an abrasive tool comprising abrasive particles, hard phase particles and a metal bond, wherein the metal bond comprises a near-eutectic copper phosphorus composition. The present invention further includes an abrasive tool comprising a metallic core; and an abrasive composition bonded to the metallic core; wherein the abrasive composition comprises abrasive particles, hard phase particles and a metal bond, and wherein the metal bond comprises a near-eutectic copper-phosphorus composition. The invention further includes a process of manufacturing the above abrasive tool.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: April 9, 1996
    Assignee: Norton Company
    Inventor: Richard M. Andrews