Patents by Inventor Bruce Crenshaw

Bruce Crenshaw 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: 9795911
    Abstract: An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and defining a media pack having opposite flow faces. Media pack arrangements including such media are described. Also described are filter cartridges including such media packs and air cleaners including the filter cartridges. Advantageous housing seal arrangements having a pinch seal member and forming a trough are described. Methods of assembly and use are also provided. Also, systems of use are described.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: October 24, 2017
    Assignee: Donaldson Company, Inc.
    Inventors: Gregory L. Reichter, Wayne Bishop, Benny K. Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Thomas Miller, Donald Mork, Kevin Schrage, Richard Osendorf, Bradley Kuempel, Thomas Lundgren
  • Publication number: 20170182443
    Abstract: Air filter cartridges are disclosed. Also described are air cleaners including the filter cartridges. Methods of assembly and use are also provided. Also, systems of use are described.
    Type: Application
    Filed: December 22, 2016
    Publication date: June 29, 2017
    Inventors: Gregory Reichter, Wayne Bishop, Benny K. Nelson, Darrel Wegner, Bruce Crenshaw, Thomas Miller, Donald Mork, Kevin Schrage, Vladimir Kladnitsky, Richard Osendorf, Bradley Kuempel, Thomas Lundgren, Jordan Flagstad
  • Patent number: 9527023
    Abstract: An air filter arrangement is disclosed. The air filter arrangement includes strips of media comprising fluted sheets secured to facing sheets and forming inlet and outlet flutes secured to one another in a stack. Media pack arrangements including such stacked media with peripheral, perimeter, housing seal arrangements are described. Also described are air cleaners including the filter cartridges. Methods of assembly and use are also provided. Also, systems of use are described.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: December 27, 2016
    Assignee: Donaldson Comapny, Inc.
    Inventors: Gregory Reichter, Wayne Bishop, Benny Kevin Nelson, Darrel Wegner, Bruce Crenshaw, Thomas Miller, Donald Mork, Kevin Schrage, Vladimir Kladnitsky, Richard Osendorf, Bradley Kuempel, Thomas Lundgren, Jordan Flagstad
  • Publication number: 20160184757
    Abstract: An air cleaner arrangement is shown. The air cleaner arrangement includes a serviceable filter cartridge. A preferred filter cartridge positionable within an air cleaner arrangement, is depicted.
    Type: Application
    Filed: November 9, 2015
    Publication date: June 30, 2016
    Inventors: Gregory Reichter, Wayne Bishop, Benny K. Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Donald Mork, Kevin Schrage, Richard Osendorf, Bradley Kuempel, Thomas Lundgren, Jordan Flagstad
  • Patent number: 9180399
    Abstract: An air cleaner arrangement is shown. The air cleaner arrangement includes a serviceable filter cartridge comprising strips of media arranged in a stacked configuration. The strips of media each comprise a corrugated sheet secured to a facing sheet. A preferred filter cartridge positioned within the air cleaner arrangement, is depicted.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: November 10, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Gregory Reichter, Wayne Bishop, Benny Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Donald Mork, Kevin Schrage, Richard Osendorf, Bradley Kuempel, Thomas Lundgren, Jordan Flagstad
  • Publication number: 20150306530
    Abstract: An air filter arrangement is disclosed. The air filter arrangement includes strips of media comprising fluted sheets secured to facing sheets and forming inlet and outlet flutes secured to one another in a stack. Media pack arrangements including such stacked media with peripheral, perimeter, housing seal arrangements are described. Also described are air cleaners including the filter cartridges. Methods of assembly and use are also provided. Also, systems of use are described.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 29, 2015
    Applicant: DONALDSON COMPANY, INC.
    Inventors: GREGORY REICHTER, WAYNE BISHOP, BENNY KEVIN NELSON, DARREL WEGNER, BRUCE CRENSHAW, THOMAS MILLER, DONALD MORK, KEVIN SCHRAGE, VLADIMIR KLADNITSKY, RICHARD OSENDORF, BRADLEY KUEMPEL, THOMAS LUNDGREN, JORDAN FLAGSTAD
  • Patent number: 9114346
    Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: August 25, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne Bishop, Gregory Reichter, Benny Nelson, Rodger Spears, Bruce Crenshaw, Vladimir Kladnitsky
  • Publication number: 20150196864
    Abstract: An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and defining a media pack having opposite flow faces. Media pack arrangements including such media are described. Also described are filter cartridges including such media packs and air cleaners including the filter cartridges. Advantageous housing seal arrangements having a pinch seal member and forming a trough are described. Methods of assembly and use are also provided. Also, systems of use are described.
    Type: Application
    Filed: December 8, 2014
    Publication date: July 16, 2015
    Inventors: GREGORY R. REICHTER, Wayne Bishop, Benny K. Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Thomas Miller, Donald Mork, Kevin Schrage, Richard Osendorf, Bradley Keumpel, Thomas Lundgren
  • Patent number: 8906128
    Abstract: An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and forming inlet and outlet flutes secured to one another. Media pack arrangements including such media are described. Also described are filter cartridges including such media packs and air cleaners including the filter cartridges. Advantageous housing seal arrangements having a pinch seal member and forming a trough are described. Methods of assembly and use are also provided. Also, systems of use are described.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 9, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Gregory Reichter, Wayne Bishop, Benny Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Thomas Miller, Donald Mork, Kevin Schrage, Richard Osendorf, Bradley Kuempel, Thomas Lundgren
  • Publication number: 20140311108
    Abstract: An air cleaner arrangement is shown. The air cleaner arrangement includes a serviceable filter cartridge comprising strips of media arranged in a stacked configuration. The strips of media each comprise a corrugated sheet secured to a facing sheet. A preferred filter cartridge positioned within the air cleaner arrangement, is depicted.
    Type: Application
    Filed: January 27, 2014
    Publication date: October 23, 2014
    Applicant: Donaldson Company, Inc.
    Inventors: Gregory Reichter, Wayne Bishop, Benny Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Donald Mork, Kevin Schrage, Richard Osendorf, Bradley Kuempel, Thomas Lundgren, Jordan Flagstad
  • Publication number: 20140123610
    Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.
    Type: Application
    Filed: August 26, 2013
    Publication date: May 8, 2014
    Applicant: DONALDSON COMPANY, INC.
    Inventors: KEVIN SCHRAGE, EUGENE LENSING, JEFF RAHLF, WAYNE BISHOP, GREGORY REICHTER, BENNY NELSON, RODGER SPEARS, BRUCE CRENSHAW, VLADIMIR KLADNITSKY
  • Patent number: 8709119
    Abstract: An air filter arrangement is disclosed. The air filter arrangement includes strips of media comprising fluted sheets secured to facing sheets and forming inlet and outlet flutes secured to one another in a stack. Media pack arrangements including such stacked media with peripheral, perimeter, housing seal arrangements are described. Also described are air cleaners including the filter cartridges. Methods of assembly and use are also provided. Also, systems of use are described.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 29, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Gregory Reichter, Wayne Bishop, Benny Nelson, Darrel Wegner, Bruce Crenshaw, Thomas Miller, Donald Mork, Kevin Schrage, Vladimir Kladnitsky, Richard Osendorf, Bradley Kuempel, Thomas Lundgren, Jordan Flagstad
  • Patent number: 8636820
    Abstract: An air cleaner arrangement is shown. The air cleaner arrangement includes a serviceable filter cartridge comprising strips of media arranged in a stacked configuration. The strips of media each comprise a corrugated sheet secured to a facing sheet. A preferred filter cartridge positioned within the air cleaner arrangement, is depicted.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: January 28, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Gregory Reichter, Wayne Bishop, Benny Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Donald Mork, Kevin Schrage, Richard Osendorf, Bradley Keumpel, Thomas Lundgren, Jordan S. Flagstad
  • Publication number: 20130312379
    Abstract: An air cleaner arrangement is shown. The air cleaner arrangement includes a serviceable filter cartridge comprising strips of media arranged in a stacked configuration. The strips of media each comprise a corrugated sheet secured to a facing sheet. A preferred filter cartridge positioned within the air cleaner arrangement, is depicted.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 28, 2013
    Applicant: Donaldson Company, Inc.
    Inventors: GREGORY REICHTER, Wayne Bishop, Benny Nelson, Darrel Wegner, Bruce Crenshaw, Vladimir Kladnitsky, Donald Mork, Kevin Schrage, Richard Osendorf, Bradley Kuempel, Thomas Lundgren, Jordon Flagstad
  • Patent number: 8518141
    Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: August 27, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne Bishop, Gregory Reichter, Benny Nelson, Rodger Spears, Bruce Crenshaw, Vladimir Kladnitsky
  • 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: 20050031829
    Abstract: A mat for use in commercial, residential, and/or automotive applications includes a rubber layer comprising rubber particles and a matrix material proximate the rubber particles. The matrix material comprises a barrier material and a binder material. The mat also includes a textile layer thermally bonded to the rubber layer. The textile layer comprises a backing layer comprising polyester. The textile layer further comprises a tufted textile surface coupled to the backing layer.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 10, 2005
    Inventors: R Bruce Crenshaw, Raul Perez
  • 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: RE46700
    Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: February 6, 2018
    Assignee: Donaldson Company, Inc.
    Inventors: Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne Bishop, Gregory Reichter, Benny Nelson, Rodger Spears, Bruce Crenshaw, Vladimir Kladnitsky