US 12,280,324 B2
Filtration media and method of manufacturing filtration media using nanofilm
Thomas J. Anoszko, Verona, WI (US); Gajanan Subray Bhat, Watkinsville, GA (US); Collin D. Anderson, Chicago, IL (US); William H. Hofmeister, Nashville, TN (US); Qin Sun, Clarksville, TN (US); Jatin Champaklal Khanpara, Saint Joseph, MN (US); and Guolian Wu, Saint Joseph, MN (US)
Assigned to Research Products Corporation, Madison, WI (US)
Filed by RESEARCH PRODUCTS CORPORATION, Madison, WI (US)
Filed on Aug. 1, 2023, as Appl. No. 18/229,002.
Claims priority of provisional application 63/394,878, filed on Aug. 3, 2022.
Prior Publication US 2024/0042356 A1, Feb. 8, 2024
Int. Cl. B01D 39/16 (2006.01); D04H 1/46 (2012.01); D04H 5/02 (2012.01)
CPC B01D 39/1607 (2013.01) [D04H 1/46 (2013.01); D04H 5/02 (2013.01); B01D 39/1692 (2013.01); B01D 2239/0659 (2013.01); B01D 2239/10 (2013.01); B01D 2239/125 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of preparing filter media comprising:
inserting one or more layers of a nanofiber media between an upper surface and a lower surface, wherein the upper surface and the lower surface are configured to receive a first plurality of needles;
piercing the nanofiber media with the first plurality of needles;
withdrawing the first plurality of needles;
aligning macro fibers along a first surface of the nanofiber media to create a hybrid media;
inserting the hybrid media between a stripper plate and a stitcher plate;
piercing the hybrid media with a second plurality of needles; and
withdrawing the second plurality of needles;
wherein at least a combination of the piercing of the hybrid media and the withdrawing from the hybrid media comprises:
catching, by the second plurality of needles, macro fibers; and
combining, by the second plurality of needles, the macro fibers with the nanofiber media.