Patents by Inventor Randall Allen Engelland

Randall Allen Engelland 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).

  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 11318408
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: May 3, 2022
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air Cleaner Arrangements; Serviceable Filter Elements; and, Methods
    Publication number: 20200215476
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 10589209
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: March 17, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • AIR CLEANER ARRANGEMENTS; SERVICEABLE FILTER ELEMENTS; AND, METHODS
    Publication number: 20190001251
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Application
    Filed: May 31, 2018
    Publication date: January 3, 2019
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 10010825
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 3, 2018
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • AIR CLEANER ARRANGEMENTS; SERVICEABLE FILTER ELEMENTS; AND, METHODS
    Publication number: 20160184756
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 30, 2016
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 9217399
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: December 22, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • AIR CLEANER ARRANGEMENTS; SERVICEABLE FILTER ELEMENTS; AND, METHODS
    Publication number: 20150135657
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Application
    Filed: August 18, 2014
    Publication date: May 21, 2015
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 8808417
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: August 19, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 8382875
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: February 26, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gilingham, Jim C. Rothman, Richard Lawrence Suydam
  • AIR CLEANER ARRANGEMENTS; SERVICEABLE FILTER ELEMENTS; AND, METHODS
    Publication number: 20120180443
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Application
    Filed: March 29, 2012
    Publication date: July 19, 2012
    Applicant: Donalson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gilingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 8147582
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: April 3, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • AIR CLEANER ARRANGEMENT; SERVICEABLE FILTER CARTRIDGE; AND, METHODS
    Publication number: 20120042616
    Abstract: Principles, techniques and configurations applicable in air cleaner arrangements and filter cartridges therefore, are described. In general the filter cartridge includes an axial pivot arrangement, for pivoting the filter cartridge in place, when mounted in an air cleaner for use. The air cleaner may include a base pivot, for engagement with the pivot projection on the filter cartridge. Methods of assembly, installation and use are described.
    Type: Application
    Filed: October 31, 2011
    Publication date: February 23, 2012
    Applicant: Donaldson Company, Inc.
    Inventors: Robert Widerski, Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter cartridge; and, methods
    Patent number: 8048188
    Abstract: Principles, techniques and configurations applicable in air cleaner arrangements and filter cartridges therefore, are described. In general the filter cartridge includes an axial pivot arrangement, for pivoting the filter cartridge in place, when mounted in an air cleaner for use. The air cleaner preferably includes a base pivot, for engagement with the pivot projection on the filter cartridge. Methods of assembly, installation and use are described.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: November 1, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Robert Widerski, Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 7972405
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: July 5, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • AIR CLEANER ARRANGEMENTS; SERVICEABLE FILTER ELEMENTS; AND, METHODS
    Publication number: 20100139629
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 10, 2010
    Applicant: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 7682416
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: March 23, 2010
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air Cleaner Arrangements; Serviceable Filter Cartridge; and, Methods
    Publication number: 20080250763
    Abstract: Principles, techniques and configurations applicable in air cleaner arrangements and filter cartridges therefore, are described. In general the filter cartridge includes an axial pivot arrangement, for pivoting the filter cartridge in place, when mounted in an air cleaner for use. The air cleaner preferably includes a base pivot, for engagement with the pivot projection on the filter cartridge. Methods of assembly, installation and use are described.
    Type: Application
    Filed: June 16, 2005
    Publication date: October 16, 2008
    Applicant: Donaldson Company, Inc.
    Inventors: Robert Widerski, Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: 7351270
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: April 1, 2008
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter elements; and, methods
    Patent number: RE45588
    Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: June 30, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam