Patents by Inventor Richard K. Bergquist

Richard K. Bergquist 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: 5318182
    Abstract: A stackable tray for paper stock, drawings sheets, or the like comprising a bottom panel, opposing side walls extending upwardly from the bottom panel along the side edges thereof, and front and walls extending upwardly from the bottom panel along the front and rear edges thereof. The front wall is comprised of a pair of spaced apart front wall segments defining an opening traversing substantially the length of the tray. The walls define a top ledge extending upwardly and a bottom ledge extending downwardly. The top and bottom ledges are sized and positioned so that the top ledge of one tray is received within and bounded by the bottom ledge of a like tray when the trays are stacked, or vice versa. The bottom panel defines a plurality of recesses aligned in rows and columns. A cross brace traverses each tray and is received within a recess formed in the underside of the bottom panel.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: June 7, 1994
    Assignee: Liberty Diversified Industries
    Inventors: Stanley R. Thorud, Richard K. Bergquist, David J. Martin
  • Patent number: D348284
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: June 28, 1994
    Assignee: Liberty Diversified Industries
    Inventors: Stanley R. Thorud, Richard K. Bergquist, David J. Martin