Patents by Inventor John Frein

John Frein 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).

  • Recirculation filter for an electronics enclosure
    Patent number: 10940414
    Abstract: A filter assembly for use in an electronics enclosure is disclosed herein. The filter assembly has an inner assembly having a filter material comprising fibrous media and a containment assembly having a first containment layer and a second containment layer. The containment assembly defines an outer perimeter and the first containment layer and a second containment layer are bonded along the outer perimeter in an outer weld area to encapsulate the inner assembly. The outer weld area extends between the outer perimeter and an interior perimeter. The inner assembly defines an inner assembly perimeter that is within the outer perimeter of the containment assembly.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: March 9, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Allen N. Nicklay, Scott A. Keller, Stanley B. Miller, III, Katsushi Isogawa, John Frein
  • RECIRCULATION FILTER FOR AN ELECTRONICS ENCLOSURE
    Publication number: 20180085693
    Abstract: A filter assembly for use in an electronics enclosure is disclosed herein. The filter assembly has an inner assembly having a filter material comprising fibrous media and a containment assembly having a first containment layer and a second containment layer. The containment assembly defines an outer perimeter and the first containment layer and a second containment layer are bonded along the outer perimeter in an outer weld area to encapsulate the inner assembly. The outer weld area extends between the outer perimeter and an interior perimeter. The inner assembly defines an inner assembly perimeter that is within the outer perimeter of the containment assembly.
    Type: Application
    Filed: April 6, 2016
    Publication date: March 29, 2018
    Inventors: Allen N. Nicklay, Scott A. Keller, Stanley B. Miller, III, Katsushi Isogawa, John Frein