Patents by Inventor Robert Lawrence Dahlstrom

Robert Lawrence Dahlstrom 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: 8499749
    Abstract: Arrangements for use in crankcase ventilation are described and shown. Included are serviceable crankcase ventilation filter cartridges which include a media pack axial drain arrangement, for preferred, efficient, operation. A crankcase ventilation filter arrangements including a housing and such a serviceable cartridge is shown. Also shown and described are methods of assembly, operation and use.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: August 6, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Wade Stephen Mosset, Robert Lawrence Dahlstrom
  • Publication number: 20100031940
    Abstract: Arrangements for use in crankcase ventilation are described and shown. Included are serviceable crankcase ventilation filter cartridges which include a media pack axial drain arrangement, for preferred, efficient, operation. A crankcase ventilation filter arrangements including a housing and such a serviceable cartridge is shown. Also shown and described are methods of assembly, operation and use.
    Type: Application
    Filed: October 27, 2006
    Publication date: February 11, 2010
    Applicant: Donaldson Company Inc.
    Inventors: Wade Stephen Mosset, Robert Lawrence Dahlstrom