Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1994-05-26
1996-10-15
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
134 72, 134109, B08B 302
Patent
active
055641598
ABSTRACT:
The closed-loop multistage printed circuit board cleaning system applies a generous flow of water to rinse printed circuit boards previously cleaned in a wash section, the water then being recirculated through a purification system and reused to clean the printed circuit boards. When the printed circuit boards require application of a saponified liquid for adequate cleaning, the saponified liquid is applied in pre-wash and wash stages, the boards thereafter being air blasted to remove substantially all of the saponified liquid before they are rinsed. In the saponified system, the pre-wash and wash water is recycled within the pre-wash and wash stages themselves, then passed to a drain. In a system that does not require saponification, the wash liquid also may be recycled, thereby permitting both the wash and rinse stage to employ generous flows of water.
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patent: 3598131 (1971-08-01), Weihe
patent: 3694847 (1972-10-01), Hetman et al.
patent: 4076554 (1978-02-01), Weihe
patent: 4319930 (1982-03-01), Yano et al.
patent: 5032187 (1991-07-01), Lawless
patent: 5062438 (1991-11-01), Michiletti
patent: 5190065 (1993-03-01), Kovac et al.
Moore Chris K.
The John Treiber Company
LandOfFree
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