Patents by Inventor James A. Severson

James A. Severson 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: 6368388
    Abstract: A filter construction allowing easy access to the filter is provided. The filter construction includes a yoke having a keeper, a filter supported by the yoke wherein the filter defines an opening, and a cover. The cover includes a plate for covering the opening in the filter, a tightening member connected to the plate and a catch for engaging the keeper on the yoke. An air filter assembly is also provided for removing particulate matter from an incoming dirty air stream. The assembly includes a housing having an inlet, an outlet, a dirty air chamber and a clean air chamber and a first filter construction positioned in the dirty air chamber. A method of accessing an air filter in an air filter assembly is also provided.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: April 9, 2002
    Assignee: Donaldson Company Inc.
    Inventors: Kristofer Kosmider, James A. Severson, Thomas D. Raether, Robert M. Bick, Steven Johnson