B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 35/18 (2006.01) B01D 46/24 (2006.01) F01N 3/021 (2006.01) F01N 3/022 (2006.01) F01N 3/027 (2006.01) F01N 3/032 (2006.01)
Patent
CA 2118406
2118406 9320919 PCTABS00027 A filter cartridge (22) with heating element (34) separated from support member (32) by filter media (60) wherein heating element (34) has rows of apertures (80) alternately staggered to provide good hoop strength while allowing longitudinal thermal growth and contraction. Each row of apertures (80) forms a pair with a row on one side of it and another pair on the other side of it so that there is an unbroken line lying along a transverse plane of the heating element (34) material between a majority of the pairs, wherein a plurality of electrical pathways (78) are formed.
Hoppenstedt Bruce B.
Wagner Wayne M.
Donaldson Company Inc.
Robic
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