Patents by Inventor Thomas Donald Raether

Thomas Donald Raether 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: 10195560
    Abstract: An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: February 5, 2019
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas Donald Raether
  • Publication number: 20170361255
    Abstract: An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 21, 2017
    Inventor: Thomas Donald Raether
  • Patent number: 9776120
    Abstract: An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 3, 2017
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas Donald Raether
  • Publication number: 20170182444
    Abstract: An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface.
    Type: Application
    Filed: March 17, 2017
    Publication date: June 29, 2017
    Inventor: Thomas Donald Raether
  • Patent number: 9597623
    Abstract: An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: March 21, 2017
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas Donald Raether, Eli Ross, Rodney Slade Switzer, Gary Richard Nygaard
  • Patent number: 9393511
    Abstract: An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: July 19, 2016
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas Donald Raether
  • Publication number: 20140284886
    Abstract: An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Inventor: Thomas Donald Raether
  • Patent number: 8771395
    Abstract: An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: July 8, 2014
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas Donald Raether
  • Publication number: 20140096496
    Abstract: An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: Donaldson Company, Inc.
    Inventors: Thomas Donald Raether, Eli Ross, Rodney Slade Switzer, Gary Richard Nygaard
  • Patent number: 8617276
    Abstract: An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: December 31, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas Donald Raether, Eli Ross, Rodney Slade Switzer, Gary Richard Nygaard
  • Publication number: 20130298770
    Abstract: An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 14, 2013
    Inventor: Thomas Donald Raether
  • Patent number: 8491691
    Abstract: An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: July 23, 2013
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas Donald Raether
  • Patent number: 8491684
    Abstract: Z-filters capable of cleaning particulate matter from airflow streams in dust collectors, including reverse flow, reverse air, and reverse pulse systems.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: July 23, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas Donald Raether, Brian Zauner, Mark Belcher, Gabriel Safarian
  • Patent number: 8317890
    Abstract: Air filter assemblies and components therefor are described. The air filter assembly typically includes an air filter cartridge. Air filter cartridges including a media pack comprising at least a first stack of single facer strips are described. In examples described, at least a portion of the first stack of single facer strips is arcuate. Air filter assemblies are characterized that are configured, for example, to advantageously use such air filter cartridges. Example air filter assemblies are described that include pulse jet air cleaning systems.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: November 27, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas Donald Raether, Benny Kevin Nelson, Jared Lee Niccum
  • Patent number: 8118900
    Abstract: A dust collector includes a housing with a tubesheet and at least one filter element. A reverse pulse cleaning arrangement is provided to periodically emit gas pulses into a downstream flow face of the filter element. The reverse pulse cleaning arrangement includes at least Q number of blow pipes directed at the filter element, with Q being an integer of at least 2 or greater and is calculated based on filter length, filter width, pulse over coverage, and the maximum pulse non-coverage.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: February 21, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas Donald Raether, Douglas Wersal
  • Publication number: 20110113736
    Abstract: Air filter assemblies and components therefor are described. The air filter assembly typically includes an air filter cartridge. Air filter cartridges including a media pack comprising at least a first stack of single facer strips are described. In examples described, at least a portion of the first stack of single facer strips is arcuate. Air filter assemblies are characterized that are configured, for example, to advantageously use such air filter cartridges. Example air filter assemblies are described that include pulse jet air cleaning systems.
    Type: Application
    Filed: August 27, 2009
    Publication date: May 19, 2011
    Inventors: Thomas Donald Raether, Benny Kevin Nelson, Jared Lee Niccum
  • Publication number: 20110083408
    Abstract: An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface.
    Type: Application
    Filed: October 11, 2010
    Publication date: April 14, 2011
    Inventors: Thomas Donald Raether, Eli Ross, Rodney Slade Switzer, Gary Richard Nygaard
  • Publication number: 20110083559
    Abstract: An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.
    Type: Application
    Filed: October 11, 2010
    Publication date: April 14, 2011
    Inventor: Thomas Donald Raether
  • Publication number: 20110072972
    Abstract: A dust collector includes a housing with a tubesheet and at least one filter element. A reverse pulse cleaning arrangement is provided to periodically emit gas pulses into a downstream flow face of the filter element. The reverse pulse cleaning arrangement includes at least Q number of blow pipes directed at the filter element, with Q being an integer of at least 2 or greater and is calculated based on filter length, filter width, pulse over coverage, and the maximum pulse non-coverage.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Applicant: DONALDSON COMPANY, INC.
    Inventors: THOMAS DONALD RAETHER, Douglas Wersal
  • Publication number: 20100263337
    Abstract: Z-filters capable of cleaning particulate matter from airflow streams in dust collectors, including reverse flow, reverse air, and reverse pulse systems.
    Type: Application
    Filed: February 25, 2010
    Publication date: October 21, 2010
    Applicant: DONALDSON COMPANY, INC
    Inventors: THOMAS DONALD RAETHER, BRIAN ZAUNER, MARK BELCHER, GABRIEL SAFARIAN