US 12,220,669 B2
Filter screen
Abhishek Shrivastava, Edina, MN (US); Scott T. Burr, Midland, MI (US); Piyush Soni, Midland, MI (US); Laura J. Dietsche, Midland, MI (US); and Santhosh K. Ramalingam, Singapore (SG)
Assigned to Accelerated Filtration, Inc., Midland, MI (US)
Appl. No. 17/260,044
Filed by ACCELERATED FILTRATION, INC., Midland, MI (US)
PCT Filed Jul. 10, 2019, PCT No. PCT/US2019/041137
§ 371(c)(1), (2) Date Jan. 13, 2021,
PCT Pub. No. WO2020/023209, PCT Pub. Date Jan. 30, 2020.
Claims priority of provisional application 62/711,178, filed on Jul. 27, 2018.
Prior Publication US 2021/0268448 A1, Sep. 2, 2021
Int. Cl. B01D 69/02 (2006.01); B01D 61/14 (2006.01); B01D 63/16 (2006.01); B01D 65/02 (2006.01); C02F 1/44 (2023.01)
CPC B01D 69/02 (2013.01) [B01D 61/14 (2013.01); C02F 1/444 (2013.01); B01D 63/16 (2013.01); B01D 65/02 (2013.01); B01D 2315/02 (2013.01); B01D 2315/10 (2013.01); B01D 2321/30 (2013.01); B01D 2325/021 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A filter screen having a plurality of slots, each slot having a longest principal axis A1 that has a length L, and each slot having a second axis A2 that is perpendicular to A1 and that has a length W, wherein the slots are arranged so that
all the axes A1 are parallel to each other;
the slots are disposed in a plurality of rows, wherein the distance between center points of adjacent slots in the direction of the axes A2 is XP; wherein XP is greater than W;
the slots are disposed in a plurality of columns, wherein the distance between nearest circumference points of adjacent slots in the direction of the axes A1 is YP;
wherein L is 800 micrometers or less,
wherein XP is 350 micrometers or less,
wherein W is 50 micrometers or less, and
wherein the filter has a curved surface.