Patents by Inventor Dolan Bartels

Dolan Bartels 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: 8361181
    Abstract: Air cleaner assemblies and serviceable filter cartridges therefor are described. Example filter cartridges described which include a first end cap with a air flow aperture therethrough, having an outer axial surface and axial seal ring thereon. Example arrangements are provided with air flow inlet tube section defining the aperture through the first end cap. Also, water seal arrangements, typically positioned radially inwardly from the air seal arrangement, are described.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: January 29, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Richard Osendorf, Dolan Bartels, Andrew Albitz, Bradley Keumpel
  • Publication number: 20100037570
    Abstract: Air cleaner assemblies and serviceable filter cartridges therefor are described. Example filter cartridges described which include a first end cap with a air flow aperture therethrough, having an outer axial surface and axial seal ring thereon. Example arrangements are provided with air flow inlet tube section defining the aperture through the first end cap. Also, water seal arrangements, typically positioned radially inwardly from the air seal arrangement, are described.
    Type: Application
    Filed: May 14, 2009
    Publication date: February 18, 2010
    Inventors: Richard Osendorf, Dolan Bartels, Andrew Albitz, Bradley Keumpel
  • Patent number: 7455707
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: November 25, 2008
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Shirley A. Harold, Don Harold
  • Publication number: 20080066435
    Abstract: An air cleaner assembly and components therefor are described. One of the components characterized is a filter cartridge including a first end cap with an outwardly directed pinch seal flange on an end cap at one end of the cartridge; and, an opposite end with a housing seal. An example air cleaner housing is described, for sealingly receiving the filter cartridge therein, during use. Methods of assembly and use are also described.
    Type: Application
    Filed: August 15, 2007
    Publication date: March 20, 2008
    Inventors: Donald Engel, Jordan Flagstad, Andrew Albitz, Justin Kadlec, Dolan Bartels
  • Publication number: 20040148913
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 5, 2004
    Applicant: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
  • Publication number: 20040006955
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second-end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Application
    Filed: February 10, 2003
    Publication date: January 15, 2004
    Applicant: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, Shirley A. Harold
  • Patent number: 6521009
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: February 18, 2003
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
  • Publication number: 20020092282
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Application
    Filed: October 9, 2001
    Publication date: July 18, 2002
    Applicant: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, Shirley A. Harold
  • Patent number: 6413289
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the a filter element and the housing.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: July 2, 2002
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
  • Publication number: 20020014058
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the a filter element and the housing.
    Type: Application
    Filed: October 9, 2001
    Publication date: February 7, 2002
    Applicant: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, Shirley A. Harold
  • Patent number: 6322602
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: November 27, 2001
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
  • Publication number: 20010020419
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Application
    Filed: May 3, 2001
    Publication date: September 13, 2001
    Applicant: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
  • Patent number: 6258145
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: July 10, 2001
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
  • Patent number: 6004366
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: December 21, 1999
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, deceased
  • Patent number: 5938804
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: August 17, 1999
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, deceased, by Shirley A. Harold, legal representative
  • Patent number: 5897676
    Abstract: A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: April 27, 1999
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, deceased
  • Patent number: D646368
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: October 4, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Richard Osendorf, Dolan Bartels, Andrew Albitz, Bradley Kuempel
  • Patent number: D666704
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: September 4, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Richard Osendorf, Dolan Bartels, Andrew Albitz, Bradley Kuempel
  • Patent number: D425977
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: May 30, 2000
    Assignee: Donaldson Company, Inc.
    Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, deceased