Closed-loop dual-cycle printed circuit board cleaning apparatus

Details Closed-loop dual-cycle printed circuit board cleaning apparatus Closed-loop dual-cycle printed circuit board cleaning apparatus

1991-11-12

1993-04-13

Morris, Theodore

Cleaning and liquid contact with solids

Processes

Including application of electrical radiant or wave energy...

134 10, 134 26, 134 36, 134 951, 134 981, 134 991, 134186, 134902, B08B 312, B08B 500

Patent

active

052019586

ABSTRACT:
A cleaning apparatus and method for washing and rinsing electronic assemblies. The apparatus includes a single closable chamber for containing a single tank with attached ultrasonic transducers. Separate wash and rinse fluid circuits each are arranged to fill the tank, to drain fluid from the tank, and to recondition the fluid for reuse. To permit the safe use of combustible solvents, an inert gas purge system evacuates oxygen and combustible vapors from areas with potential electrical ignition sources.

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