Patents by Inventor Jeffrey Steven Johnson

Jeffrey Steven Johnson 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: 5711840
    Abstract: A method of making abrasive articles which includes the steps of sandwiching and adhering abrasive particles between two sheets of fiber where the particles have a major cross-section dimension greater than the thickness of the sheets into resultant second sheets. The resultant second sheets are then adhered together by lamination under pressure so that the abrasive particles of a second sheet enter the interstices between the abrasive particles of adjacent other second sheets to form an interlocking bond and increase the tensile strength. The sheets are preferably cut from a processed strip prior to lamination. Prior to lamination the second sheets may be coated with one or both of a liquid rubber and a thermosetting resin. If resin is used the stack is heated as it is pressure laminated. The application of rubber and resin may be in the alternative. The application of rubber imparts flexibility while the resin upon curing imparts hardness.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: January 27, 1998
    Assignee: Northeast Abrasives, Diamond and Tools Corp.
    Inventor: Jeffrey Steven Johnson