Patents by Inventor Jim C. Rothman

Jim C. Rothman 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: 8268053
    Abstract: Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: September 18, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, Gary R. Gillingham, Joseph C. Tokar, Daniel T. Risch, Jim C. Rothman, Fred H. Wahlquist, Bernard A. Matthys, Gregory L. Reichter, Stephen W. Sabelko, Bryan D. Patten
  • 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
  • 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
  • Publication number: 20110185689
    Abstract: A filter element includes a media pack and a gasket member. The gasket member includes first and second gasket regions separated by a channel. One or more filter elements are usable in a dust collector. One example dust collector includes a collector housing having a dirty air inlet, a clean air outlet, and a tube sheet dividing the housing between an unfiltered air volume and a clean air volume. At least one filter element is removably mounted and sealed within the tube sheet. A gasket member secured to the element includes first and second gasket regions separated by a channel. At least one projection angled relative to a plane of the tube sheet extends into the channel of the gasket member.
    Type: Application
    Filed: April 3, 2009
    Publication date: August 4, 2011
    Applicant: Donaldson Company, Inc.
    Inventors: Thomas D. Raether, Brian Zauner, Jim C. Rothman
  • 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
  • Patent number: 7967898
    Abstract: A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such methods include elements made of Z-media. An example system utilizing the method includes a gas turbine air intake system.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: June 28, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Timothy D. Sporre, Jim C. Rothman, Michael W. Handley, Thomas D. Raether
  • 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
  • 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
  • Publication number: 20090064860
    Abstract: A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such methods include elements made of Z-media. An example system utilizing the method includes a gas turbine air intake system.
    Type: Application
    Filed: February 29, 2008
    Publication date: March 12, 2009
    Applicant: Donaldson Company, Inc.
    Inventors: Timothy D. Sporre, Jim C. Rothman, Michael W. Handley, Thomas D. Raether
  • Publication number: 20080216654
    Abstract: Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.
    Type: Application
    Filed: February 11, 2008
    Publication date: September 11, 2008
    Applicant: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, Gary R. Gillingham, Joseph C. Tokar, Daniel T. Risch, Jim C. Rothman, Fred H. Wahlquist, Bernard A. Matthys, Gregory L. Reichter, Stephen W. Sabelko, Bryan D. Patten
  • 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
  • Patent number: 7338544
    Abstract: A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such methods include elements made of Z-media. An example system utilizing the method includes a gas turbine air intake system.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: March 4, 2008
    Assignee: Donaldson Company, Inc.
    Inventors: Timothy D. Sporre, Jim C. Rothman, Michael W. Handley, Thomas D. Raether
  • Patent number: 7329326
    Abstract: Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: February 12, 2008
    Assignee: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, Gary R. Gillingham, Joseph C. Tokar, Daniel T. Risch, Jim C. Rothman, Fred H. Wahlquist, Bernard A. Matthys, Gregory L. Reichter, Stephen W. Sabelko, Bryan D. Patten
  • Publication number: 20080022641
    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 16, 2005
    Publication date: January 31, 2008
    Applicant: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Patent number: 7323029
    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: January 29, 2008
    Assignee: Donaldson Company, Inc.
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Patent number: 7282075
    Abstract: A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such methods include elements made of Z-media. An example system utilizing the method includes a gas turbine air intake system.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: October 16, 2007
    Assignee: Donaldson Company, Inc.
    Inventors: Timothy D. Sporre, Jim C. Rothman, Michael W. Handley, Thomas D. Raether
  • Publication number: 20040221555
    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 10, 2004
    Publication date: November 11, 2004
    Applicant: Donaldson Company
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Publication number: 20040187689
    Abstract: A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such methods include elements made of Z-media. An example system utilizing the method includes a gas turbine air intake system.
    Type: Application
    Filed: December 8, 2003
    Publication date: September 30, 2004
    Inventors: Timothy D. Sporre, Jim C. Rothman, Michael W. Handley, Thomas D. Raether
  • Publication number: 20040173097
    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 10, 2004
    Publication date: September 9, 2004
    Applicant: Donaldson Company
    Inventors: Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
  • Publication number: 20030121845
    Abstract: Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.
    Type: Application
    Filed: February 21, 2003
    Publication date: July 3, 2003
    Applicant: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, Gary R. Gillingham, Joseph C. Tokar, Daniel T. Risch, Jim C. Rothman, Fred H. Wahlquist, Bernard A. Matthys, Gregory L. Reichter, Stephen W. Sabelko, Bryan D. Patten