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).
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Patent number: 8361181Abstract: 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: GrantFiled: May 14, 2009Date of Patent: January 29, 2013Assignee: Donaldson Company, Inc.Inventors: Richard Osendorf, Dolan Bartels, Andrew Albitz, Bradley Keumpel
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Publication number: 20100037570Abstract: 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: ApplicationFiled: May 14, 2009Publication date: February 18, 2010Inventors: Richard Osendorf, Dolan Bartels, Andrew Albitz, Bradley Keumpel
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Patent number: 7455707Abstract: 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: GrantFiled: February 10, 2003Date of Patent: November 25, 2008Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Shirley A. Harold, Don Harold
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Publication number: 20080066435Abstract: 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: ApplicationFiled: August 15, 2007Publication date: March 20, 2008Inventors: Donald Engel, Jordan Flagstad, Andrew Albitz, Justin Kadlec, Dolan Bartels
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Publication number: 20040148913Abstract: 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: ApplicationFiled: February 10, 2003Publication date: August 5, 2004Applicant: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
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Publication number: 20040006955Abstract: 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: ApplicationFiled: February 10, 2003Publication date: January 15, 2004Applicant: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, Shirley A. Harold
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Patent number: 6521009Abstract: 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: GrantFiled: October 9, 2001Date of Patent: February 18, 2003Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
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Publication number: 20020092282Abstract: 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: ApplicationFiled: October 9, 2001Publication date: July 18, 2002Applicant: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, Shirley A. Harold
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Patent number: 6413289Abstract: 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: GrantFiled: October 9, 2001Date of Patent: July 2, 2002Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
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Publication number: 20020014058Abstract: 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: ApplicationFiled: October 9, 2001Publication date: February 7, 2002Applicant: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, Shirley A. Harold
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Patent number: 6322602Abstract: 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: GrantFiled: May 3, 2001Date of Patent: November 27, 2001Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
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Publication number: 20010020419Abstract: 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: ApplicationFiled: May 3, 2001Publication date: September 13, 2001Applicant: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
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Patent number: 6258145Abstract: 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: GrantFiled: December 20, 1999Date of Patent: July 10, 2001Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold
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Patent number: 6004366Abstract: 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: GrantFiled: November 24, 1998Date of Patent: December 21, 1999Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, deceased
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Patent number: 5938804Abstract: 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: GrantFiled: June 27, 1997Date of Patent: August 17, 1999Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, deceased, by Shirley A. Harold, legal representative
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Patent number: 5897676Abstract: 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: GrantFiled: June 5, 1998Date of Patent: April 27, 1999Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, deceased
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Patent number: D646368Type: GrantFiled: June 6, 2008Date of Patent: October 4, 2011Assignee: Donaldson Company, Inc.Inventors: Richard Osendorf, Dolan Bartels, Andrew Albitz, Bradley Kuempel
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Patent number: D666704Type: GrantFiled: October 3, 2011Date of Patent: September 4, 2012Assignee: Donaldson Company, Inc.Inventors: Richard Osendorf, Dolan Bartels, Andrew Albitz, Bradley Kuempel
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Patent number: D425977Type: GrantFiled: March 24, 1998Date of Patent: May 30, 2000Assignee: Donaldson Company, Inc.Inventors: Donald Francis Engel, Dolan Bartels, John Hacker, Bruce Crenshaw, Don Harold, deceased