Binks Manufacturing Company

Donald F Gerdes

Steve E Telchuk, Jr

Steve E Telchuk

Leslie H Brown

A painting structure for use as, by way of example, a paint spray booth or paint baking or drying oven, utilizes a trapezoidal cross-section, instead of the conventional rectangular/square or rectangular-gabled cross-section. The painting structure of the present invention provides inherent rigidity without the need for special framing, and provides more uniform air flow than a gabled roof structure, as air swirls in air pockets beneath the gables are eliminated. Due to the simplified construction, the trapezoidal cross-sectional booth of the present invention is less expensive to make and install and more easily erected.

Trapezoidal painting structure

A paint spray booth water washed subfloor system, including distribution piping for supplying water to only one portion thereof. The distribution piping has only one main pipe to supply water to the one portion of the subfloor. The water supplied to the one portion of the subfloor is then transferred from that portion through a trough extending across and forming part of the subfloor to provide water to the other portions of the subfloor. Preferably, at least a part of the subfloor's other portions are sloped downwardly from both sides toward a center slot or opening for generating a fall of water to mix with paint overspray laden air descending through the center opening. The distribution piping is provided with special valves for throttling the flow of water onto the subfloor, but yet permitting maximum flow, and assisting the flow of water into the trough portion, and hence, to the other portions of the subfloor. Following the principles of the invention, a spray booth subfloor of any desired length can be constructed, simply by adding a number of similar sections or modules together to achieve the desired length.

Water washed subfloor system for paint spray booth

Improved air washer or scrubber for a center draw, down draft paint spray booth is disclosed which results in twenty percent (20%) or greater improvement in cleaning and removal of entrained matter from the exhaust air. The air washer may be adjusted to accommodate different air flow requirements, for example, for conventional or electrostatic spray painting. The adjustment may be made manually, by power devices, or automatically to accommodate the changed air flow desired.

Air washer for paint spray booth

An air washer or scrubber, particularly for paint spray booths and especially adapted for removing paint particles from air passing downwardly through the grille floor of a paint spray booth and against a water-washed subfloor, comprises an elongated V-shaped slot in the subfloor extending along the longitudinal centerline of the booth. The inner edges of the walls forming the V-shaped slot are upturned to form ledges so that water flowed over the subfloor and the walls of the slot impinges against the ledges and is thrown upwardly and inwardly to form a curtain of water completely covering the slot. Exhaust means pulls paint-laden air from the spray chamber through the water curtain and the slot and into an expansion chamber, the bottom walls of which form a second V-shaped slot contiguous with the first mentioned slot. The water, in which virtually all of the paint particles are entrained, and the air are discharged from the second slot and impinged against a baffle sheet angling downwardly away from the expansion chamber. The end of the sheet is upturned at a small angle to deflect the water and form an umbrella of water through which the air must pass for a final cleaning action. An optional curved deflector plate positioned beneath the umbrella of water aids in separating the water and air so that only clean, dry air is exhausted to atmosphere.

Air washer/scrubber

A system is provided for extinguishing accidental fires in paint spray booths of the type wherein oil is used as the medium for eliminating extraneous paint mist and overspray, said system providing control over both the oil and the medium used for extinguishing the fire. In such a spray booth, oil from a self-contained reservoir located at the bottom of the booth is circulated over a plurality of baffles within the booth. Paint mist is drawn by flow of air into contact with the oil covered baffles, and the paint solids are thereby entrained in the oil and collected in the oil reservoir. An appropriate fire extinguishing system for such spray booth comprises a plurality of water fog nozzles within the booth that are activated in response to a fire, and which therefore discharge water into the reservoir. Pursuant to the invention, means are provided to control and preserve the oil which is displaced by water accumulating in the oil reservoir, to maximize fire-fighting efficiency, and to discharge excess water from the booth while safely retaining the oil.

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Park Ridge, IL, United States of America

Donald F Gerdes