Patents by Inventor Gerald L. Greenman

Gerald L. Greenman 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).

  • Reciprocating assembly for abrading a workpiece
    Patent number: 6095907
    Abstract: A reciprocating assembly for moving an abrasive element over a workpiece. The reciprocating assembly utilizes a piston arrangement operated by pressurized fluid wherein the abrasive element is extended over the workpiece at one rate and is retracted along the workpiece at another rate.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: August 1, 2000
    Assignee: Kennametal Inc.
    Inventors: Gerald L. Greenman, Gerald D. Murray
  • Abrasive pad holder
    Patent number: 6048257
    Abstract: A holder for an abrasive element used to abrade the surface of a workpiece. The holder is made of an abrasive pad resiliently mounted upon a holder in a manner providing to the pad multiple degrees of freedom of motion.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: April 11, 2000
    Assignee: Kennametal Inc.
    Inventors: Gerald L. Greenman, Gerald D. Murray