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).
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Patent number: 8608817Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.Type: GrantFiled: November 7, 2008Date of Patent: December 17, 2013Assignee: Hollingsworth & Vose CompanyInventors: John A. Wertz, David Thomas Healey, William S. Freeman, John L. Manns, Mark Rowlands
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Publication number: 20120304602Abstract: 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: ApplicationFiled: May 2, 2012Publication date: December 6, 2012Applicant: Hollingsworth & Vose CompanyInventors: David Thomas Healey, Richard E. Gahan
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Patent number: 8197569Abstract: 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: GrantFiled: December 30, 2010Date of Patent: June 12, 2012Assignee: Hollingsworth & Vose CompanyInventors: David Thomas Healey, Richard E. Gahan
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Publication number: 20110162337Abstract: 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: ApplicationFiled: December 30, 2010Publication date: July 7, 2011Applicant: Hollingsworth & Vose CompanyInventors: David Thomas Healey, Richard E. Gahan
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Patent number: 7883562Abstract: 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: GrantFiled: February 27, 2008Date of Patent: February 8, 2011Assignee: Hollingsworth & Vose CompanyInventors: David Thomas Healey, Richard E. Gahan
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Publication number: 20090120048Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.Type: ApplicationFiled: November 7, 2008Publication date: May 14, 2009Applicant: HOLLINGSWORTH & VOSE COMPANYInventors: John A. Wertz, David Thomas Healey, William S. Freeman, John L. Manns, Mark Rowlands
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Publication number: 20080202078Abstract: 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: ApplicationFiled: February 27, 2008Publication date: August 28, 2008Applicant: HOLLINGSWORTH & VOSE COMPANYInventors: David Thomas Healey, Richard E. Gahan
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Patent number: 6858057Abstract: 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: GrantFiled: March 12, 2003Date of Patent: February 22, 2005Assignee: Hollingsworth & Vosa CompanyInventor: David Thomas Healey
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Publication number: 20040035095Abstract: 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: ApplicationFiled: March 12, 2003Publication date: February 26, 2004Applicant: HOLLINGSWORTH & VOSE COMPANYInventor: David Thomas Healey
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Publication number: 20030203696Abstract: 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: ApplicationFiled: September 26, 2002Publication date: October 30, 2003Inventor: David Thomas Healey
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Patent number: 6554881Abstract: 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: GrantFiled: October 27, 2000Date of Patent: April 29, 2003Assignee: Hollingsworth & Vose CompanyInventor: David Thomas Healey
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Publication number: 20020187701Abstract: 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: ApplicationFiled: April 30, 2002Publication date: December 12, 2002Applicant: HOLLINGSWORTH & VOSE COMPANYInventor: David Thomas Healey