Patents by Inventor Douglas M. Guimond
Douglas M. Guimond 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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Publication number: 20170232372Abstract: Filter media including a filtration layer comprising fibers (e.g., synthetic fibers) comprising a flame retardant and related components, systems, and methods associated herewith are provided. In some embodiments, a filtration layer may include a nonwoven web (e.g., wet-laid nonwoven web) comprising fibers including a certain flame retardant that has a relatively low concentration of or is substantially free of certain undesirable and/or toxic components (e.g., halogens). In certain embodiments, the nonwoven web may also comprise a blend of fibers. For instance, in some embodiments, the nonwoven web may also comprise a blend of coarse and fine diameter synthetic fibers that impart beneficial performance properties to the filtration layer. In some embodiments, the filtration layer may be designed to have a desirable flame retardancy (e.g., F1 rating, K1 rating) and performance properties without compromising certain mechanical properties (e.g., pleatability of the media) and/or environmental attributes (e.g.Type: ApplicationFiled: September 30, 2016Publication date: August 17, 2017Applicant: Hollingsworth & Vose CompanyInventors: Xiaodan Zhang, Douglas M. Guimond, Carrie Liu, Nagendra Anantharamaiah, Sudhakar Jaganathan, Gerald Gadbois, Maxim Silin, Mark A. Gallimore
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Publication number: 20160184751Abstract: Filter media are described. The filter media may include multiple layers. In some embodiments, the filter media include a nanofiber layer adhered to another layer. In some embodiments, the layer to which the nanofiber layer is adhered is formed of multiple fiber types (e.g., fibers that give rise to structures having different air permeabilities and/or pressure drops). In some embodiments, the nanofiber layer is adhered to a single-phase or a multi-phase layer. In some embodiments, the nanofiber layer is manufactured from a meltblown process. The filter media may be designed to have advantageous properties including, in some cases, a high dust particle capture efficiency and/or a high dust holding capacity.Type: ApplicationFiled: December 30, 2015Publication date: June 30, 2016Applicant: Hollingsworth & Vose CompanyInventors: John A. Wertz, Douglas M. Guimond
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Patent number: 9283501Abstract: Filter media are described. The filter media may include multiple layers. In some embodiments, the filter media include a nanofiber layer adhered to another layer. In some embodiments, the layer to which the nanofiber layer is adhered is formed of multiple fiber types (e.g., fibers that give rise to structures having different air permeabilities and/or pressure drops). In some embodiments, the nanofiber layer is adhered to a single-phase or a multi-phase layer. In some embodiments, the nanofiber layer is manufactured from a meltblown process. The filter media may be designed to have advantageous properties including, in some cases, a high dust particle capture efficiency and/or a high dust holding capacity.Type: GrantFiled: January 31, 2014Date of Patent: March 15, 2016Assignee: Hollingsworth & Vose CompanyInventors: John A. Wertz, Douglas M. Guimond
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Publication number: 20150004385Abstract: 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: ApplicationFiled: June 9, 2014Publication date: January 1, 2015Applicant: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Patent number: 8877011Abstract: Systems and methods for forming fiber webs, including those suitable for use as filter media and battery separators, are provided. In some embodiments, the systems and methods may involve the use of one or more fiber mixtures to form a fiber web. The fiber mixtures may flow in different portions of a system for forming a fiber web that may be separated by a lamella, and may join at a fiber web forming zone to produce a fiber web having multiple layers. The amount of mixing of the fiber mixtures at or near the fiber web forming zone may be controlled to produce fiber webs having different structural and/or performance characteristics. In some embodiments, the systems and methods described herein can be used to form fiber webs having a gradient in a property across a portion of, or the entire, thickness of the fiber web.Type: GrantFiled: May 11, 2012Date of Patent: November 4, 2014Assignee: Hollingsworth & Vose CompanyInventors: Douglas M. Guimond, Mark S. Millar, David Vallery, Milind Godsay
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Patent number: 8790492Abstract: 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: GrantFiled: August 16, 2013Date of Patent: July 29, 2014Assignee: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Patent number: 8778046Abstract: 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: GrantFiled: August 16, 2013Date of Patent: July 15, 2014Assignee: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Patent number: 8778047Abstract: 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: GrantFiled: August 16, 2013Date of Patent: July 15, 2014Assignee: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Publication number: 20140144113Abstract: Filter media are described. The filter media may include multiple layers. In some embodiments, the filter media include a nanofiber layer adhered to another layer. In some embodiments, the layer to which the nanofiber layer is adhered is formed of multiple fiber types (e.g., fibers that give rise to structures having different air permeabilities and/or pressure drops). In some embodiments, the nanofiber layer is adhered to a single-phase or a multi-phase layer. In some embodiments, the nanofiber layer is manufactured from a meltblown process. The filter media may be designed to have advantageous properties including, in some cases, a high dust particle capture efficiency and/or a high dust holding capacity.Type: ApplicationFiled: January 31, 2014Publication date: May 29, 2014Applicant: Hollingsworth & Vose CompanyInventors: John A. Wertz, Douglas M. Guimond
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Patent number: 8679218Abstract: Filter media are described. The filter media may include multiple layers. In some embodiments, the filter media include a nanofiber layer adhered to another layer. In some embodiments, the layer to which the nanofiber layer is adhered is formed of multiple fiber types (e.g., fibers that give rise to structures having different air permeabilities and/or pressure drops). In some embodiments, the nanofiber layer is adhered to a single-phase or a multi-phase layer. In some embodiments, the nanofiber layer is manufactured from a meltblown process. The filter media may be designed to have advantageous properties including, in some cases, a high dust particle capture efficiency and/or a high dust holding capacity.Type: GrantFiled: April 27, 2010Date of Patent: March 25, 2014Assignee: Hollingsworth & Vose CompanyInventors: John A. Wertz, Douglas M. Guimond
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Publication number: 20140060762Abstract: Multi-phase filter media, as well as related articles, components, filter elements, and methods, are disclosed.Type: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Applicant: Hollingsworth & Vose CompanyInventors: Douglas M. Guimond, Mark Snyder
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Publication number: 20140047809Abstract: 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: ApplicationFiled: August 16, 2013Publication date: February 20, 2014Applicant: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Publication number: 20130333341Abstract: 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: ApplicationFiled: August 16, 2013Publication date: December 19, 2013Applicant: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Publication number: 20130333852Abstract: 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: ApplicationFiled: August 16, 2013Publication date: December 19, 2013Applicant: Hollingworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Patent number: 8545587Abstract: Multi-phase filter media, as well as related articles, components, filter elements, and methods, are disclosed.Type: GrantFiled: November 27, 2011Date of Patent: October 1, 2013Assignee: Hollingsworth & Vose CompanyInventors: Douglas M. Guimond, Mark Snyder
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Patent number: 8545590Abstract: 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: GrantFiled: December 29, 2011Date of Patent: October 1, 2013Assignee: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Patent number: 8357220Abstract: Multi-phase filter media, as well as related articles, components, filter elements, and methods, are disclosed.Type: GrantFiled: June 19, 2009Date of Patent: January 22, 2013Assignee: Hollingsworth & Vose CompanyInventors: Douglas M. Guimond, Mark Snyder
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Publication number: 20130009335Abstract: Systems and methods for forming fiber webs, including those suitable for use as filter media and battery separators, are provided. In some embodiments, the systems and methods may involve the use of one or more fiber mixtures to form a fiber web. The fiber mixtures may flow in different portions of a system for forming a fiber web that may be separated by a lamella, and may join at a fiber web forming zone to produce a fiber web having multiple layers. The amount of mixing of the fiber mixtures at or near the fiber web forming zone may be controlled to produce fiber webs having different structural and/or performance characteristics. In some embodiments, the systems and methods described herein can be used to form fiber webs having a gradient in a property across a portion of, or the entire, thickness of the fiber web.Type: ApplicationFiled: May 11, 2012Publication date: January 10, 2013Applicant: Hollingsworth & Vose CompanyInventors: Douglas M. Guimond, Mark S. Millar, David Vallery, Milind Godsay
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Publication number: 20120312487Abstract: Systems and methods for forming fiber webs, including those suitable for use as filter media and battery separators, are provided. In some embodiments, the systems and methods may involve the use of one or more fiber mixtures to form a fiber web. The fiber mixtures may flow in different portions of a system for forming a fiber web that may be separated by a lamella, and may join at a fiber web forming zone to produce a fiber web having multiple layers. The amount of mixing of the fiber mixtures at or near the fiber web forming zone may be controlled to produce fiber webs having different structural and/or performance characteristics. In some embodiments, the systems and methods described herein can be used to form fiber webs having a gradient in a property across a portion of, or the entire, thickness of the fiber web.Type: ApplicationFiled: May 11, 2012Publication date: December 13, 2012Applicant: Hollingsworth & Vose CompanyInventors: Douglas M. Guimond, Mark S. Millar, David Vallery, Milind Godsay
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Patent number: 8236082Abstract: 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: GrantFiled: June 19, 2009Date of Patent: August 7, 2012Assignee: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond