Spray finishing tunnel

Details Spray finishing tunnel Spray finishing tunnel

1975-06-09

1976-06-29

O'Dea, William F.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

55240, 118DIG7, 118312, 118326, F23J 1112

Patent

active

039658058

ABSTRACT:
A spray-finishing system including a tunnel through which objects to be finished longitudinally move and a chamber under the tunnel and in communication with the tunnel through the grill-type floor. The chamber is exhausted by conventional exhaust fan techniques. The improvement comprises a longitudinally extending divider dividing the chamber into lateral subchambers from which the air is exhausted. The divider provides, for each subchamber, a longitudinally and downwardly extending wall surface terminating at its lower extremity into a laterally relatively narrow trough which is relatively steeply inclined longitudinally downwardly. In each subchamber, a longitudinally extending, inwardly and downwardly sloping panel is provided having a distal edge spaced apart from the wall surface to provide a longitudinally extending, laterally narrow slot through which the air drawn from the subchamber moves. A film of washing liquid flows down the wall surfaces respectively to the troughs and down the panels respectively toward the wall surfaces. The troughs, being steeply inclined, flow the washing liquid longitudinally along the subchambers at a relatively high speed.

REFERENCES:
patent: 2230646 (1941-02-01), Klausmeyer
patent: 3170384 (1965-02-01), Krantz et al.
patent: 3391630 (1968-07-01), Wilhelmsson
patent: 3807291 (1974-04-01), Roberts et al.

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