Search Patents
  • Meltblown Filter Medium
    Publication number: 20090120048
    Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 14, 2009
    Applicant: HOLLINGSWORTH & VOSE COMPANY
    Inventors: John A. Wertz, David Thomas Healey, William S. Freeman, John L. Manns, Mark Rowlands
  • Meltblown filter medium
    Patent number: 8608817
    Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: December 17, 2013
    Assignee: Hollingsworth & Vose Company
    Inventors: John A. Wertz, David Thomas Healey, William S. Freeman, John L. Manns, Mark Rowlands
  • WAVED FILTER MEDIA AND ELEMENTS
    Publication number: 20150121823
    Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.
    Type: Application
    Filed: October 8, 2014
    Publication date: May 7, 2015
    Applicant: Hollingsworth & Vose Company
    Inventor: David T. Healey
  • WAVED FILTER MEDIA AND ELEMENTS
    Publication number: 20130025245
    Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.
    Type: Application
    Filed: August 2, 2012
    Publication date: January 31, 2013
    Applicant: Hollingsworth & Vose Company
    Inventor: David T. Healey
  • WAVED FILTER MEDIA AND ELEMENTS
    Publication number: 20080202078
    Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 28, 2008
    Applicant: HOLLINGSWORTH & VOSE COMPANY
    Inventors: David Thomas Healey, Richard E. Gahan
  • Waved filter media and elements
    Patent number: 8202340
    Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: June 19, 2012
    Assignee: Hollingsworth & Vose Company
    Inventors: David T. Healey, Richard Gahan
  • Flutable fiber webs with high dust holding capacity
    Patent number: 8545590
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: October 1, 2013
    Assignee: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond
  • FLUTABLE FIBER WEBS WITH HIGH DUST HOLDING CAPACITY
    Publication number: 20120097032
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Application
    Filed: December 29, 2011
    Publication date: April 26, 2012
    Applicant: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond
  • Waved filter media and elements
    Patent number: 8882875
    Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: November 11, 2014
    Assignee: Hollingsworth & Vose Company
    Inventor: David T. Healey
  • Waved filter media and elements
    Patent number: 8257459
    Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 4, 2012
    Assignee: Hollingsworth & Vose Company
    Inventors: David T. Healey, Richard Gahan
  • Waved filter media and elements
    Patent number: 8197569
    Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: June 12, 2012
    Assignee: Hollingsworth & Vose Company
    Inventors: David Thomas Healey, Richard E. Gahan
  • Flutable fiber webs with high dust holding capacity
    Patent number: 8236082
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: August 7, 2012
    Assignee: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond
  • Waved filter media and elements
    Patent number: 7883562
    Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: February 8, 2011
    Assignee: Hollingsworth & Vose Company
    Inventors: David Thomas Healey, Richard E. Gahan