Cleaning and liquid contact with solids – Processes – Paints – varnishes – lacquers – or enamels – removal
Patent
1996-05-03
1997-12-02
Scherbel, David
Cleaning and liquid contact with solids
Processes
Paints, varnishes, lacquers, or enamels, removal
15302, 15310, 1341021, 1341022, 134199, B08B 700, B08B 300
Patent
active
056931506
ABSTRACT:
A paint gun cleaner includes a spray unit mounted in an enclosure in spaced relation to an opening in the enclosure through which the paint gun to be cleaned is inserted. A ring shaped spray unit combines a solvent dispenser, which may be either a solvent knife generating a curtain of solvent in the central opening of the spray unit or a plurality of nozzles directing solvent onto the paint gun, with an air knife positioned between the solvent dispenser and the enclosure opening. The air knife directs air flow radially and axially inward to prevent escape of solvent, and to recirculate air mixed with solvent around the sides of the spray unit and through the space between the spray unit and enclosure opening to reduce the amount of ambient air which is drawn into and which must be separated from the solvent and dissolved paint before discharge. An interconnection between the air knife and solvent dispenser interjects solvent into the air knife during cleaning to keep the air knife from being clogged with paint, and provides for discharge of air through both the air knife and solvent dispenser when the solvent supply is interrupted for drying the paint gun after cleaning.
REFERENCES:
patent: 444078 (1891-01-01), Hughes et al.
patent: 3771539 (1973-11-01), De Santis
patent: 4025363 (1977-05-01), De Santis
patent: 4483040 (1984-11-01), Magee et al.
patent: 5485860 (1996-01-01), Robb et al.
N/C Painter, GM Truck & Bus, Pontiac, Ft. Wayne, Oshawa; Feb. 1, 1986, GMF Robotics Corporation.
AEG Automation Systems Corporation
Scherbel David
Till Terrence
Westerhoff Richard V.
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