Patents by Inventor William C. Haberkamp
William C. Haberkamp 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: 11739451Abstract: A nonwoven web comprising a layer of polymeric fibers, wherein, based on the total number of polymeric fibers, at least 10% the polymeric fibers in said layer are coarse fibers having a fiber diameter of 4 ?m or more, and at least 10% of the polymeric fibers in said layer are fine fibers having a fiber diameter of 2 ?m or less. Also described herein is a method for making the nonwoven web, comprising melt-blowing a polymer mixture comprising two immiscible or partially miscible polymers.Type: GrantFiled: July 15, 2020Date of Patent: August 29, 2023Assignee: CUMMINS FILTRATION IP, INC.Inventors: Kan Wang, William C. Haberkamp
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Publication number: 20210229011Abstract: Embodiments described herein relate generally to adhesive alloys and their use in filter media, and in particular to adhesive alloys that can be melt blown onto a filter media layer, and which are thermally activated to bond the filter media layer to another filter media layer. An adhesive alloy is provided. A thermally activated adhesive has a first melting temperature. A polymer has a second melting temperature greater than the first melting temperature. A ratio of the thermally activated adhesive in the adhesive alloy is in a range of 5 wt % to 70 wt %.Type: ApplicationFiled: April 15, 2021Publication date: July 29, 2021Applicant: Cummins Filtration IP, Inc.Inventors: William C. Haberkamp, Kan Wang
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Publication number: 20210230781Abstract: A method comprises providing a polymer. The polymer is heated to a first predetermined temperature so as to liquefy the polymer. The liquefied polymer is formed into a polymer fiber. The polymer fiber is cross-linked to form a cross-linked polymer fiber comprising a polymer network by at least one of cooling the polymer fiber to a second predetermined temperature lower than the first predetermined temperature or exposing the polymer fiber to a cross-linking stimulus, the cross-linked polymer fiber capable of being decross-linked by heating to a third predetermined temperature above a characteristic decross-linking temperature of the polymer.Type: ApplicationFiled: May 13, 2019Publication date: July 29, 2021Applicant: CUMMINS FILTRATION IP, INC.Inventors: Christopher J. Ellison, Kailong Jin, Frank S. Bates, William C. Haberkamp, Kan Wang
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Publication number: 20210178309Abstract: A variable efficiency filter media. The variable efficiency filter media is a composite media formed of at least two different types of filter media, such as standard efficiency media and high efficiency media. The variable efficiency filter media has at least two different efficiency levels. The different efficiency levels can be spread across different zones. The filter media types for both the standard and high efficiency media can be spun media, melt blown media, nanofiber media, micro-glass media, cellulose media, carded staple fiber media, and the like. The variable efficiency filter media may be produced by any of an air laid or wet laid process.Type: ApplicationFiled: February 19, 2021Publication date: June 17, 2021Applicant: CUMMINS FILTRATION IP, INC.Inventors: Wilson L. Currier, William C. Haberkamp, Jonathan D. Sheumaker, Charles W. Hawkins, Kyle Ellison, John C. Williams, Erica C. Clark-Heinrich, Zemin Jiang
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Patent number: 10953356Abstract: Disclosed is a composite filter media. The composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 ?m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nano fiber layer to the geometric mean diameter of fibers at the downstream face of the nano fiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.Type: GrantFiled: December 16, 2019Date of Patent: March 23, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: William C. Haberkamp, Eric A. Janikowski, Barry Mark Verdegan, Christopher E. Holm, Huanling Liu, Kyle Ellison, Mark T. Wieczorek
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Publication number: 20200354869Abstract: A nonwoven web comprising a layer of polymeric fibers, wherein, based on the total number of polymeric fibers, at least 10% the polymeric fibers in said layer are coarse fibers having a fiber diameter of 4 ?m or more, and at least 10% of the polymeric fibers in said layer are fine fibers having a fiber diameter of 2 ?m or less. Also described herein is a method for making the nonwoven web, comprising melt-blowing a polymer mixture comprising two immiscible or partially miscible polymers.Type: ApplicationFiled: July 15, 2020Publication date: November 12, 2020Applicant: CUMMINS FILTRATION IP, INC.Inventors: Kan Wang, William C. Haberkamp
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Patent number: 10760208Abstract: Described herein is a continuous process for modifying the properties of polyester and polyester based fibers, such as a poly(butylene terephthalate) (PBT) fiber, comprising subjecting the PBT fiber to alkaline hydrolysis, and optionally further comprising functionalizing the PBT fiber by solution grafting such as fluorination. The alkaline hydrolysis and optionally subsequent functionalization such as fluorination process can be continuous, following the melt blowing/spinning or spun-bonding process. Also described is a nonwoven PBT fiber mat obtained by the surface modification process. Further described is a filtration device comprising the nonwoven PBT fiber mat.Type: GrantFiled: November 30, 2018Date of Patent: September 1, 2020Assignees: CUMMINS FILTRATION IP, INC, REGENTS OF THE UNIVERISTY OF MINNESOTAInventors: Zaifei Wang, Frank S. Bates, Christopher W. Macosko, Kan Wang, William C. Haberkamp, Christopher E. Holm
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Publication number: 20200114291Abstract: Disclosed is a composite filler media. The composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 ?m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nano fiber layer to the geometric mean diameter of fibers at the downstream face of the nano fiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.Type: ApplicationFiled: December 16, 2019Publication date: April 16, 2020Applicant: CUMMINS FILTRATION IP, INC.Inventors: William C. Haberkamp, Eric A. Janikowski, Barry Mark Verdegan, Christopher E. Holm, Huanling Liu, Kyle Ellison, Mark T. Wieczorek
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Publication number: 20200086261Abstract: A variable efficiency filter media. The variable efficiency filter media is a composite media formed of at least two different types of filter media, such as standard efficiency media and high efficiency media. The variable efficiency filter media has at least two different efficiency levels. The different efficiency levels can be spread across different zones. The filter media types for both the standard and high efficiency media can be spun media, melt blown media, nanofiber media, micro-glass media, cellulose media, carded staple fiber media, and the like. The variable efficiency filter media may be produced by any of an air laid or wet laid process.Type: ApplicationFiled: August 11, 2016Publication date: March 19, 2020Applicant: Cummins Filtration IP, Inc.Inventors: Wilson L. CURRIER, William C. HABERKAMP, Jonathan D. SHEUMAKER, Charles W. HAWKINS, Kyle ELLISON, John C. WILLIAMS, Erica C. CLARK-HEINRICH, Zemin JIANG
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Patent number: 10537837Abstract: Disclosed is a composite filter media. The composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 ?m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nanofiber layer to the geometric mean diameter of fibers at the downstream face of the nanofiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.Type: GrantFiled: April 27, 2018Date of Patent: January 21, 2020Assignee: Cummins Filtration IP, Inc.Inventors: William C. Haberkamp, Eric A. Janikowski, Barry Mark Verdegan, Christopher E. Holm, Huanling Liu, Kyle Ellison, Mark T. Wieczorek
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Publication number: 20200009486Abstract: Disclosed is composite media that may be utilized in coalescing elements, coalescing cartridges, coalescing systems, and coalescing methods. The disclosed media typically is a composite or laminate material formed by bonding adjacent layers of media material comprising bicomponent fibers.Type: ApplicationFiled: July 17, 2019Publication date: January 9, 2020Applicant: CUMMINS FILTRATION IP, INC.Inventors: William C. Haberkamp, Eric A. Janikowski, Kyle Ellison, Barry Mark Verdegan, Christopher E. Holm
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Patent number: 10391434Abstract: Disclosed is composite media that may be utilized in coalescing elements, coalescing cartridges, coalescing systems, and coalescing methods. The disclosed media typically is a composite or laminate material formed by bonding adjacent layer of media material comprising bicomponent fibers.Type: GrantFiled: July 3, 2018Date of Patent: August 27, 2019Assignee: Cummins Filtration IP, Inc.Inventors: William C. Haberkamp, Eric A. Janikowski, Kyle Ellison, Barry Mark Verdegan, Christopher E. Holm
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Publication number: 20190153641Abstract: A nonwoven web comprising a layer of polymeric fibers, wherein, based on the total number of polymeric fibers, at least 10% the polymeric fibers in said layer are coarse fibers having a fiber diameter of 4 ?m or more, and at least 10% of the polymeric fibers in said layer are fine fibers having a fiber diameter of 2 ?m or less. Also described herein is a method for making the nonwoven web, comprising melt-blowing a polymer mixture comprising two immiscible or partially miscible polymers.Type: ApplicationFiled: September 1, 2015Publication date: May 23, 2019Applicant: Cummins Filtration IP, Inc.Inventors: Kan Wang, William C. Haberkamp
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Publication number: 20190153664Abstract: Described herein is a continuous process fear modifying the properties of polyester and polyester based fibers, such as a poly(butylene terephthalate) (PBT) fiber, comprising subjecting the PBT fiber to alkaline hydrolysis, and optionally further comprising functionalizing the PBT fiber by solution grafting such as fluorination. The alkaline hydrolysis and optionally subsequent functionalization such as fluorination process can be continuous, following the melt blowing/spinning or spun-bonding process. Also described is a nonwoven PBT fiber mat obtained by the surface modification process. Further described is a filtration device comprising the nonwoven PBT fiber mat.Type: ApplicationFiled: November 30, 2018Publication date: May 23, 2019Applicants: CUMMINS FILTRATION IP, INC., Regents of the University of MinnesotaInventors: Zaifei Wang, Frank S. Bates, Christopher W. Macosko, Kan Wang, William C. Haberkamp, Christopher E. Holm
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Patent number: 10227725Abstract: Described herein is a continuous process for modifying the properties of polyester and polyester based fibers, such as a poly(butylene terephthalate) (PBT) fiber, comprising subjecting the PBT fiber to alkaline hydrolysis, and optionally further comprising functionalizing the PBT fiber by solution grafting such as fluorination. The alkaline hydrolysis and optionally subsequent functionalization such as fluorination process can be continuous, following the melt blowing/spinning or spun-bonding process. Also described is a nonwoven PBT fiber mat obtained by the surface modification process. Further described is a filtration device comprising the nonwoven PBT fiber mat.Type: GrantFiled: January 2, 2015Date of Patent: March 12, 2019Assignees: Cummins Filtration IP, Inc., Regents of the University of MinnesotaInventors: Zaifei Wang, Frank S. Bates, Christopher W. Macosko, Kan Wang, William C. Haberkamp, Christopher E. Holm
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Publication number: 20180326335Abstract: Disclosed is composite media that may be utilized in coalescing elements, coalescing cartridges, coalescing systems, and coalescing methods. The disclosed media typically is a composite or laminate material formed by bonding adjacent layer of media material comprising bicomponent fibers.Type: ApplicationFiled: July 3, 2018Publication date: November 15, 2018Applicant: CUMMINS FILTRATION IP, INC.Inventors: William C. Haberkamp, Eric A. Janikowski, Kyle Ellison, Barry Mark Verdegan, Christopher E. Holm
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Publication number: 20180243675Abstract: Disclosed is a composite filter media. The composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 ?m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nanofiber layer to the geometric mean diameter of fibers at the downstream face of the nanofiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.Type: ApplicationFiled: April 27, 2018Publication date: August 30, 2018Applicant: CUMMINS FILTRATION IP, INC.Inventors: William C. Haberkamp, Eric A. Janikowski, Barry Mark Verdegan, Christopher E. Holm, Huanling Liu, Kyle Ellison, Mark T. Wieczorek
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Patent number: 10058808Abstract: Disclosed is composite media that may be utilized in coalescing elements, coalescing cartridges, coalescing systems, and coalescing methods. The disclosed media typically is a composite or laminate material formed by bonding adjacent layers of media material comprising bicomponent fibers.Type: GrantFiled: March 14, 2013Date of Patent: August 28, 2018Assignee: CUMMINS FILTRATION IP, INC.Inventors: William C. Haberkamp, Eric A. Janikowski, Kyle Ellison, Barry Mark Verdegan, Christopher E. Holm
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Patent number: 9987578Abstract: Composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 ?m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nanofiber layer to the geometric mean diameter of fibers at the downstream face of the nanofiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.Type: GrantFiled: August 1, 2014Date of Patent: June 5, 2018Assignee: CUMMINS FILTRATION IP, INC.Inventors: William C. Haberkamp, Eric A. Janikowski, Barry Mark Verdegan, Christopher E. Holm, Huanling Liu, Kyle Ellison, Mark T. Wieczorek
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Publication number: 20170233911Abstract: A nonwoven web comprising a layer of polymeric fibers, wherein, based on the total number of polymeric fibers, at least 10% the polymeric fibers in said layer are coarse fibers having a fiber diameter of 4 ?m or more, and at least 10% of the polymeric fibers in said layer are fine fibers having a fiber diameter of 2 ?m or less. Also described herein is a method for making the nonwoven web, comprising melt-blowing a polymer mixture comprising two immiscible or partially miscible polymers.Type: ApplicationFiled: September 1, 2015Publication date: August 17, 2017Applicant: Cummins Filtration IP, Inc.Inventors: Kan WANG, William C. HABERKAMP