Patents by Inventor Thomas J. Lundgren

Thomas J. Lundgren 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).

  • Air filter arrangement; assembly; and, methods
    Patent number: 10864475
    Abstract: An air cleaner arrangement is shown. The air cleaner arrangement includes a serviceable filter cartridge. A preferred filter cartridge positionable within an air cleaner arrangement, is depicted.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: December 15, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Gregory L. Reichter, Wayne R. W. Bishop, Benny K. Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Donald Raymond Mork, Kevin Schrage, Richard J. Osendorf, Bradley A. Kuempel, Thomas J. Lundgren, Jordan S. Flagstad
  • AIR FILTER ARRANGEMENT; ASSEMBLY; AND, METHODS
    Publication number: 20180369736
    Abstract: An air cleaner arrangement is shown. The air cleaner arrangement includes a serviceable filter cartridge. A preferred filter cartridge positionable within an air cleaner arrangement, is depicted.
    Type: Application
    Filed: August 31, 2018
    Publication date: December 27, 2018
    Inventors: Gregory L. Reichter, Wayne R.W. Bishop, Benny K. Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Donald Raymond Mork, Kevin Schrage, Richard J. Osendorf, Bradley A. Kuempel, Thomas J. Lundgren, Jordan S. Flagstad
  • Film receive magazine for a laser imager
    Patent number: 5172905
    Abstract: A receive magazine for collecting and transporting sheets of exposed photographic media. The receive magazine includes an elongated, light-tight enclosure having front and back walls, top and bottom walls, and first and second end walls. Sheets of media are gravity fed into the magazine entrance through a collection door on the top wall of the enclosure. The collection door includes a media-receiving slot, a shutter and a spring for biasing the shutter to a normally closed, light-tight position over the slot. A lower downwardly sloping resilient member mounted to the front wall engages the sheets as they are inserted into the magazine and forces the sheets into a vertically stacked arrangement against the back wall of the enclosure, away from the entrance. A ramp surface on the back wall guides sheets being inserted over previously collected sheets. A compound curved surface on the back wall of the enclosure below the ramp surface arcs the sheets to minimize contact during insertion.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: December 22, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James C. Vanous, Robert L. Rydeen, Thomas J. Lundgren, Bert A. Munthe, Arnold B. Dammermann