Patents by Inventor Edmund L. Pessa

Edmund L. Pessa 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).

  • Apparatus and methods for refinishing a surface in-situ
    Patent number: 6921322
    Abstract: The invention features a self-contained, portable apparatus for performing precision grinding operations on metal disks of up to, e.g., 54 inches in diameter. The apparatus can be attached to the surface of the disk to be refinished and is leveled using special precision leveling adjusters. During operation, the adjusters are turned in precision increments to set the depth of cut. The grinder is then rotated on an arm about the center of the disk, by the use of a hydraulically driven speed reducer, rotor, bearing assembly. In a further aspect, the invention includes a dressing assembly for performing dressing-truing on a vitreous wheel when the wheel is in grinding position. The in position dressing assembly dresses a grinding wheel at up to 0.00125-inch increments.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: July 26, 2005
    Assignee: Artisan Industries, Inc.
    Inventors: Andrew E. Donovan, Edmund L. Pessa, David A. Hudson, Victor Takata
  • Apparatus and methods for refinishing a surface in-situ
    Publication number: 20040147208
    Abstract: The invention features a self-contained, portable apparatus for performing precision grinding operations on metal disks of up to, e.g., 54 inches in diameter. The apparatus can be attached to the surface of the disk to be refinished and is leveled using special precision leveling adjusters. During operation, the adjusters are turned in precision increments to set the depth of cut. The grinder is then rotated on an arm about the center of the disk, by the use of a hydraulically driven speed reducer, rotor, bearing assembly. In a further aspect, the invention includes a dressing assembly for performing dressing-truing on a vitreous wheel when the wheel is in grinding position. The in position dressing assembly dresses a grinding wheel at up to 0.00125-inch increments.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Inventors: Victor Takata, Andrew E. Donvan, Edmund L. Pessa, David A. Hudson