Patents by Inventor Robert I. Thomson

Robert I. Thomson 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).

  • Method of applying non-magnetic toner
    Patent number: 5656409
    Abstract: Non-magnetic and non-conductive powdered toner is applied to a rotating image cylinder having an electrostatic pattern. A container having a closed bottom and sides and open top contains the powdered toner. The powder is fluidized by introducing air through a pervious closed bottom of the container, and by vibrating the container. The toner is simultaneously stirred and electrically charged to a potential of greater than about 7 kv (plus or minus polarity) by rotating elements with radial pointed appendages in the container. Toner is transferred from the container to an image cylinder at an exposed nine o'clock position of the image cylinder by a plurality of transfer cylinders. A first transfer cylinder is mounted so that its periphery is just above the open top of the container and an applicator cylinder has its axis below the axis of the first cylinder, and its periphery adjacent both the first cylinder and the image cylinder.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: August 12, 1997
    Assignee: Moore Business Forms, Inc.
    Inventors: Orrin D. Christy, Daniel E. Kanfoush, Mark A. Matheis, John E. Pickett, Robert I. Thomson
  • Multi-roller electrostatic toning
    Patent number: 5532100
    Abstract: Non-magnetic and non-conductive powdered toner is applied to a rotating image cylinder having an electrostatic pattern. A container having a closed bottom and sides and open top contains the powdered toner. The powder is fluidized by introducing air through a pervious closed bottom of the container, and by vibrating the container. The toner is simultaneously stirred and electrically charged to a potential of greater than about 7 kv (plus or minus polarity) by rotating elements with radial pointed appendages in the container. Toner is transferred from the container to an image cylinder at an exposed nine o'clock position of the image cylinder by a plurality of transfer cylinders. A first transfer cylinder is mounted so that its periphery is just above the open top of the container and an applicator cylinder has its axis below the axis of the first cylinder, and its periphery adjacent both the first cylinder and the image cylinder.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: July 2, 1996
    Assignee: Moore Business Forms, Inc.
    Inventors: Orrin D. Christy, Daniel E. Kanfoush, Mark A. Matheis, John E. Pickett, Robert I. Thomson
  • Trim rewinder with automatic stop
    Patent number: 4572496
    Abstract: A trim rewinder eliminates manual removal of trim, and increases rewinder capacity several fold. A stripper portion of a bin of the rewinder strips wound trim from elongated members of the rewinder into the bin as the bin is removed. A pressure member wipingly presses trim tightly about the elongated members to compact the trim.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: February 25, 1986
    Assignee: Moore Business Forms, Inc.
    Inventors: Mark S. Casper, Robert I. Thomson