US 11,745,206 B2
Filtering apparatus with at least one filter unit
Daniel J. Baizel, Wilmington, OH (US); James E. Large, Circleville, OH (US); and Mounir B. H. Slama, Dublin, OH (US)
Assigned to Columbus Industries, Inc., Ashville, OH (US)
Filed by Columbus Industries, Inc., Ashville, OH (US)
Filed on Aug. 24, 2020, as Appl. No. 17/1,108.
Prior Publication US 2022/0055058 A1, Feb. 24, 2022
Int. Cl. B01D 46/10 (2006.01); B01D 46/00 (2022.01); B01D 46/48 (2006.01); B01D 46/58 (2022.01); B05B 14/43 (2018.01); B65D 19/06 (2006.01)
CPC B05B 14/43 (2018.02) [B01D 46/48 (2013.01); B65D 19/06 (2013.01); B01D 2258/0258 (2013.01); B65D 2519/00159 (2013.01); B65D 2519/00333 (2013.01); B65D 2519/00497 (2013.01); B65D 2519/00621 (2013.01); B65D 2519/00666 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A filtering apparatus comprising:
(a) an elongated housing configured to receive overspray air along an entry flow path, which is substantially parallel to the length of the housing, and guide the overspray air along an exit flow path that is transverse to the entry flow path, the housing defined by at least an upstream sidewall, lateral sidewalls and a downstream sidewall, the downstream sidewall having an opening through which the overspray air exits the housing;
(b) a top plate mounted to the housing and having an overspray-receiving surface toward which overspray air in the entry flow path is directed, wherein an entry opening is defined by the upstream sidewall, the lateral sidewalls and an edge of the top plate that is closest to the upstream sidewall, and wherein the top plate is disposed at an angle to the entry flow path for receiving the entry air flow and guiding it through the entry opening;
(c) at least one filter unit removably-mounted in the housing along the exit flow path on an opposite side of the top plate from the paint-receiving surface, the filter unit configured to receive the overspray air along the exit flow path and having an upstream face; and
(d) an overhanging portion formed where the top plate overhangs the filter unit, the overhanging portion extending upstream by at least about one inch from the upstream face of the filter unit, thereby mitigating flow of material from the overspray-receiving surface to the filter unit.