Patents by Inventor David Thomas Healey

David Thomas Healey 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: 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
  • Publication number: 20120304602
    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: May 2, 2012
    Publication date: December 6, 2012
    Applicant: Hollingsworth & Vose Company
    Inventors: David Thomas Healey, Richard E. Gahan
  • 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
  • Publication number: 20110162337
    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: December 30, 2010
    Publication date: July 7, 2011
    Applicant: Hollingsworth & Vose Company
    Inventors: David Thomas Healey, Richard E. Gahan
  • 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
  • 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
  • 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
  • Patent number: 6858057
    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: Grant
    Filed: March 12, 2003
    Date of Patent: February 22, 2005
    Assignee: Hollingsworth & Vosa Company
    Inventor: David Thomas Healey
  • 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
  • Publication number: 20030203696
    Abstract: A filter media having an increased efficiency is provided. The filter media includes a middle filtering layer formed from at least one meltblown layer and having a dust entering side and a dust exiting side. A first outer layer is disposed on the dust entering side of the filter media and is formed from a meltblown polymer fiber web, and a second outer supporting layer, or backing, is disposed on the dust exiting side of the filter media, and is formed from a spunbond polymer fiber web. In an exemplary embodiment, the middle filtering layer includes a first, upstream meltblown layer and a second, downstream meltblown layer. The first, upstream layer is preferably formed from fibers having a diameter greater than a diameter of the fibers forming the second, downstream layer. The filter media is particularly useful to form ASHRAE filters for applications including heating, refrigeration, and air conditioning filtration.
    Type: Application
    Filed: September 26, 2002
    Publication date: October 30, 2003
    Inventor: David Thomas Healey
  • Patent number: 6554881
    Abstract: A filter media having 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 stale and high threshold value of alpha above eleven.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: April 29, 2003
    Assignee: Hollingsworth & Vose Company
    Inventor: David Thomas Healey
  • Publication number: 20020187701
    Abstract: A filter media having a high dust holding capacity and increased stiffness is provided. The filter media includes a middle filtering layer formed from at least one meltblown layer and having a dust entering side and a dust exiting side. A first outer layer is disposed on the dust entering side of the filter media and is formed from a meltblown polymer fiber web, and a second outer supporting layer, or backing, is disposed on the dust exiting side of the filter media, and is formed from a spunbond polymer fiber web and, optionally, a meltblown polymer fiber web. The filter media is particularly useful to form ASHRAE filters for applications including heating, refrigeration, and air conditioning filtration.
    Type: Application
    Filed: April 30, 2002
    Publication date: December 12, 2002
    Applicant: HOLLINGSWORTH & VOSE COMPANY
    Inventor: David Thomas Healey