US 12,220,657 B2
Filter disk segments
Michael B. Whitlock, Cortland, NY (US); Lara C. Heberle, Cortland, NY (US); and Samantha M. Brand, Cortland, NY (US)
Assigned to Pall Corporation, Port Washington, NY (US)
Filed by Pall Corporation, Port Washington, NY (US)
Filed on Apr. 30, 2021, as Appl. No. 17/246,349.
Prior Publication US 2022/0347603 A1, Nov. 3, 2022
Int. Cl. B01D 29/41 (2006.01)
CPC B01D 29/41 (2013.01) 7 Claims
OG exemplary drawing
 
1. A filter disk segment comprising:
a cylindrical ring having planar upper and lower surfaces, and a plurality of orifices radially extending from an interior surface of the cylindrical ring to an exterior surface of the cylindrical ring placing the interior of the cylindrical ring in fluid communication with the exterior of the ring;
a planar drainage component radially extending from the exterior surface of the cylindrical ring, defining a circular periphery;
a first porous component coextensively contacting and covering a surface of the planar drainage component, extending from the exterior surface of cylindrical ring to beyond the circular periphery of the planar drainage component; and
a second porous component coextensively contacting and covering the opposing surface of the planar drainage component, extending from the exterior surface of the cylindrical ring to beyond the circular periphery of the planar drainage component, the first and second porous components being sealed together along the circular periphery;
wherein the cylindrical ring supports the first porous component, the second porous component, and the planar drainage component;
wherein each of the first and second porous components include a plurality of raised, curved, fluid flow channels defined by portions of the first and second porous components which are spaced from the planar drainage component, the fluid flow channels extending continuously from the exterior surface of the cylindrical ring to the circular periphery; and
wherein, a fluid to be filtered passes the through first and second porous components, forming a filtrate that is passed through the drainage component, and along the plurality of raised, curved, fluid flow channels, to and through the plurality of orifices to the interior of the cylindrical ring.