Search Patents
  • Absorbent and/or adsorptive filter media
    Patent number: 9352267
    Abstract: Filter media suitable for various applications and related components, systems, and methods associated therewith are described. The filter media may include a composite structure having a mixture comprising fibrillated fibers (e.g., lyocell) and functional particles. The filter media may exhibit favorable absorption and/or adsorption characteristics.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 31, 2016
    Assignee: Hollingsworth & Vose Company
    Inventors: Svetlana Krupnikov, Erich Jurgen Gaudry Sada
  • FILTER MEDIA WITH FIBRILLATED FIBERS
    Publication number: 20120152859
    Abstract: Filter media suitable for various applications (e.g., hydraulic) and related components, systems, and methods associated therewith are described. The filter media may include a fiber web having a mixture of glass fibers and fibers that are fibrillated. The fibrillated fibers, for example, may be formed of lyocell.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 21, 2012
    Applicant: Hollingsworth & Vose Company
    Inventors: Juergen Battenfeld, William E. Widrig, Eszter Nofz
  • FILTER MEDIA COMPRISING A NON-WETLAID BACKER
    Publication number: 20210187421
    Abstract: Filter media comprising a non-wetlaid backer are generally provided. In some embodiments, a filter media comprises a non-wetlaid fiber web and further comprises one or more further fiber webs. The further fiber web(s) may include an efficiency layer and/or a prefilter.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Applicant: Hollingsworth & Vose Company
    Inventors: David T, Healey, Bruce Smith, Jennifer Dana Leary, Greg Wagner Farell
  • Filter media with fibrillated fibers
    Patent number: 10478758
    Abstract: Filter media suitable for various applications (e.g., hydraulic) and related components, systems, and methods associated therewith are described. The filter media may include a fiber web having a mixture of glass fibers and fibers that are fibrillated. The fibrillated fibers, for example, may be formed of lyocell.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: November 19, 2019
    Assignee: Hollingsworth & Vose Company
    Inventors: Juergen Battenfeld, William E. Widrig, Eszter Nofz
  • Filter media with fibrillated fibers
    Patent number: 9027765
    Abstract: Filter media suitable for various applications (e.g., hydraulic) and related components, systems, and methods associated therewith are described. The filter media may include a fiber web having a mixture of glass fibers and fibers that are fibrillated. The fibrillated fibers, for example, may be formed of lyocell.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: May 12, 2015
    Assignee: Hollingsworth & Vose Company
    Inventors: Juergen Battenfeld, William E. Widrig, Eszter Nofz
  • FIBER WEB HAVING A HIGH STIFFNESS
    Publication number: 20100319310
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The webs may exhibit a high permeability and stiffness, at a low thickness. The stiffness can be sufficient for the webs to be pleated to include sharp, well-defined peaks which can be maintained in a stable configuration during use.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 23, 2010
    Applicant: Hollingsworth & Vose Company
    Inventors: Bruce Smith, Sudhakar Jaganathan
  • FINE FIBER FILTER MEDIA AND PROCESSES
    Publication number: 20120152824
    Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 21, 2012
    Applicant: Hollingsworth & Vose Company
    Inventors: Stephen T. Cox, William S. Freeman
  • FINE FIBER FILTER MEDIA AND PROCESSES
    Publication number: 20210129061
    Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.
    Type: Application
    Filed: November 11, 2020
    Publication date: May 6, 2021
    Applicant: Hollingsworth & Vose Company
    Inventors: Stephen T. Cox, William S. Freeman, Abdoulaye Doucouré, John A. Wertz
  • BATTERY SEPARATOR WITH RIBS AND A METHOD OF CASTING THE RIBS ON THE SEPARATOR
    Publication number: 20170294639
    Abstract: The present disclosure provides a method of casting ribs on substrate, said method comprising acts of, mounting applicator comprising plurality of nozzles and polymer filled into the applicator, placing the substrate below the nozzles of the applicator, applying pressure onto the melt polymer to cast plurality of polymer ribs of predetermined shape on the substrate, and cooling the substrate casted with ribs.
    Type: Application
    Filed: September 11, 2014
    Publication date: October 12, 2017
    Applicant: HOLLINGSWORTH & VOSE COMPANY
    Inventor: Gubbi Krishnappa Natesh
  • FINE FIBER FILTER MEDIA AND PROCESSES
    Publication number: 20190126177
    Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.
    Type: Application
    Filed: October 25, 2018
    Publication date: May 2, 2019
    Applicant: Hollingsworth & Vose Company
    Inventors: Stephen T. Cox, William S. Freeman, Abdoulaye Doucouré, John A. Wertz
  • Battery separators with controlled pore structure
    Patent number: 11239531
    Abstract: Disclosed are battery separators comprising glass fibers and having a basis weight (gsm), a specific surface area (m2/g), a density (gsm/mm) and a mean pore size (?m), which satisfy the equation disclosed herein. Also disclosed are batteries comprising the battery separators, and processes for making the separators.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 1, 2022
    Assignee: Hollingsworth & Vose Company
    Inventors: Randall B. Keisler, Maxim Silin, John A. Wertz
  • FINE FIBER FILTER MEDIA AND PROCESSES
    Publication number: 20120152821
    Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 21, 2012
    Applicant: Hollingsworth & Vose Company
    Inventors: Stephen T. Cox, William S. Freeman, Mark S. Millar
  • Pool and spa filter media
    Patent number: 6419839
    Abstract: A carded nonwoven filter media comprising one or more layers of core-sheath fibers wherein the sheath portion of a fiber is bonded to one or more adjacent core fibers is disclosed. In a preferred embodiment, the nonwoven filter media includes an antimicrobial fiber component.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: July 16, 2002
    Assignee: Hollingsworth & Vose Company
    Inventors: Stephen T. Cox, Dino E. Abelli
  • 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
  • Filter media
    Publication number: 20040035095
    Abstract: A filter media comprising a synthetic microfiber polymer fine fiber web wherein the diameter of the fibers is between about 0.8 to about 1.5 microns. The filter media is acceptable for use in ASHRAE applications. Constructions with a low DP backing, support or prefilter layers of coarse fiber provide large area filter webs of high efficiency and a stable and high threshold value of alpha above eleven.
    Type: Application
    Filed: March 12, 2003
    Publication date: February 26, 2004
    Applicant: HOLLINGSWORTH & VOSE COMPANY
    Inventor: David Thomas Healey
  • FINE FIBER FILTER MEDIA AND PROCESSES
    Publication number: 20160158677
    Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.
    Type: Application
    Filed: October 5, 2015
    Publication date: June 9, 2016
    Applicant: Hollingsworth & Vose Company
    Inventors: Stephen T. Cox, William S. Freeman, Mark S. Millar, John A. Wertz
  • WAVED FILTER MEDIA AND ELEMENTS
    Publication number: 20100107881
    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: July 24, 2009
    Publication date: May 6, 2010
    Applicant: Hollingsworth & Vose Company
    Inventors: David T. Healey, Richard Gahan
  • WAVED FILTER MEDIA AND ELEMENTS
    Publication number: 20090272084
    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: March 6, 2009
    Publication date: November 5, 2009
    Applicant: Hollingsworth & Vose Company
    Inventors: David T. Healey, Richard Gahan
  • WAVED FILTER MEDIA AND ELEMENTS
    Publication number: 20140157742
    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: September 30, 2013
    Publication date: June 12, 2014
    Applicant: Hollingsworth & Vose Company
    Inventors: David T. Healey, Richard Gahan
  • 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
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