| 摘要 |
<p>A recovery system for solvent used to clean coating material from a multiple-color coating material dispensing system (334, 340, 320) which undergoes frequent color changes includes a vacuum source (390) over the recovered solvent in a recovery tank (392). The system is switched during the color change cycle from a mode in which solvent is dispensed to clean a pre-change color from a dispensing device to a mode in which the vacuum withdraws solvent remaining in a solvent delivery line (361, 357, 359) to the dispensing device (320) into the recovery tank (392). Solvent usage, disposal of discarded solvent, and other environmental considerations are salutarily affected.</p> |
