US 11,052,332 B2
Filtration media produced using additive manufacturing
Javier A. Rodriguez, Peoria, IL (US); Darrell Lee Morehouse, III, Dunlap, IL (US); Philip Carl Spengler, Washington, IL (US); and Zen M. Abbey, Mount Prospect, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Deerfield, IL (US)
Filed on Jul. 23, 2018, as Appl. No. 16/42,086.
Prior Publication US 2020/0023294 A1, Jan. 23, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 29/15 (2006.01); B01D 46/00 (2006.01); B01D 39/16 (2006.01); B01D 29/58 (2006.01); B01D 29/33 (2006.01); B01D 29/01 (2006.01); B33Y 80/00 (2015.01); B33Y 10/00 (2015.01); B33Y 50/00 (2015.01); B01D 29/11 (2006.01)
CPC B01D 29/15 (2013.01) [B01D 29/016 (2013.01); B01D 29/333 (2013.01); B01D 29/58 (2013.01); B01D 39/16 (2013.01); B01D 39/1692 (2013.01); B01D 46/0002 (2013.01); B01D 29/012 (2013.01); B01D 29/111 (2013.01); B33Y 10/00 (2014.12); B33Y 50/00 (2014.12); B33Y 80/00 (2014.12)] 10 Claims
OG exemplary drawing
 
1. A filter comprising:
a housing; and
a filter medium including a plurality of layers of solidified material;
wherein at least one of the plurality of layers of solidified material includes a first layer including a first undulating strip of solidified material extending in a first predetermined direction, and a second layer with a second undulating strip of solidified material extending in a second predetermined direction, and the first layer is in contact with the second layer and the first predetermined direction is not parallel with the second predetermined direction, forming at least one pore that defines a minimum dimension that is between 50 μm to 200 μm, and at least one of the plurality of layers of solidified material includes an undulating strip of material arranged in a trapezoidal pattern in a plane parallel to the first predetermined direction such that trapezoidal pattern includes two non-parallel legs.