Patents by Inventor Luke Staples

Luke Staples 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).

  • Soft acting phenol-formaldehyde resin bonded grinding wheel
    Patent number: 4239503
    Abstract: The invention is a phenol-formaldehyde resin bonded grinding wheel which has grinding characteristics like that of shellac bonded grinding wheels. This soft, mild grinding action results from the basic phenol-formaldehyde resin initially containing from 0.5 to 2.5% by weight of hexamethylenetetramine, when used in conjunction with a material such as liquid one-stage phenol-formaldehyde resin, or furfural as the bond pick-up agent.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: December 16, 1980
    Assignee: Norton Company
    Inventors: Denis I. Harris, Luke Staples