Multi-component spraying system
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United States of America Patent
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-
Nov 6, 1990
Issued Date -
N/A
app pub date -
Apr 24, 1989
filing date -
Jul 31, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An air-assisted, airless atomization, plural component spraying system and method includes a first source of a first component, e.g., a resin; a second source of a second component, e.g., catalyst for the resin; spraying means to mix the resin and catalyst and direct the mixture to a substrate and a source of compressed air. The spraying means includes a nozzle assembly which comprises a liquid nozzle for forming liquid into a fan-like film with expanding edges extending from a liquid orifice, and a nozzle assembly for directing a flow of compressed air and catalyst at the fan-like film closely adjacent the liquid orifice. In an internal mix system, compressed air is directed to impinge upon the expanding edges of the fan-like stream of mixed resin and catalyst downstream of the impingement of a flow of compressed air on the fan-like stream to capture particles in small, uniform spray pattern.
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