Columbus Industries, Inc.

Mounir B H Slama

James E Large

Michael K Haufe

Daniel J Baizel

T Wayne Vickers

A filtering apparatus having a housing with lateral, upstream and downstream walls, and a top plate disposed at a significant angle to incoming overspray air to accelerate and guide the particulate-laden air. The angle of the top plate directs the air upstream and away from the filters so the larger solids impact the top plate and wall and adhere, removing paint from the air. Larger solids too massive to turn while accelerating through an opening into an entry chamber collect on the upstream sidewall and the highly filtered air flows toward filter units disposed downstream of the entry opening. Lighter solids that flow downstream are removed by the filtration media. An overhang of the angled top plate reduces flow into the filter units of collected solids.

Filtering apparatus with at least one filter unit

A filter for industrial coating filtration systems. The filter has a housing made up of a peripheral wall extending around the periphery. The housing is preferably made of a suitably rigid material. A preferably rigid support backing is mounted within the housing. The support backing has a planar configuration with openings formed through it so that gas can flow through without substantial resistance. The preferably planar sheet of which the support backing is made is pleated. The pleated support backing defines a series of panels, each of which is angled to a next adjacent panel. Filtration media is mounted to the support backing, end caps are attached to the ends of the support backing to maintain the pleated configuration, and the assembly is inserted into the housing, which can have end flaps to seal using tape or adhesive.

Industrial coating application filter with pleated support

A filter for industrial coating filtration systems. The filter has a housing made up of a peripheral wall extending around the periphery. The housing is preferably made of a suitably rigid material. A preferably rigid support backing is mounted within the housing. The support backing has a planar configuration with openings formed through it so that air can flow through without substantial resistance. The preferably planar sheet of which the support backing is made is pleated. The pleated support backing defines a series of panels, each of which is angled to a next adjacent panel. Filtration media is mounted to the support backing, end caps are attached to the ends of the support backing to maintain the pleated configuration, and the assembly is inserted into the housing, which can have end flaps to seal using tape or adhesive.

The invention is a filter for paint booth filtration systems. The filter has a housing made up of a peripheral wall, which extends around the entire periphery of the filter, and opposing filter-retaining screens. The filter-retaining screens form the upstream and downstream faces of the filter. The filtration element may be a frame with lattice and a rigidifying channel therearound combined with a filtration material extended around the frame. The filtration material may be slit and expanded paper that is joined at overlapping edges, or merely overlapped, to form a sleeve. One or more of the filtration elements are mounted in the housing substantially parallel to one another and to the screens.

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Dublin, OH, United States of America

Mounir B H Slama