Treatment method for cleaning and drying printed circuit boards

Details Treatment method for cleaning and drying printed circuit boards Treatment method for cleaning and drying printed circuit boards

1994-02-22

1996-02-27

Silbaugh, Jan H.

Cleaning and liquid contact with solids

Processes

Longitudinally traveling work of bar, strip, strand, sheet...

134 254, 134 26, 134 32, 134 37, 134 72, 134127, 134902, 34461, 34620, 2395875, B08B 102, B08B 302, B08B 500, B05B 1508

Patent

active

054945291

ABSTRACT:
A method of treating printed circuit boards or other items is provided, wherein a drying apparatus is specifically provided, generally for use as part of a cleaning or other treatment apparatus, but which can be separately provided, if desired. The drying apparatus employs preferably warm air discharge tubes, for drying items of varying thicknesses, and/or that have varying thicknesses of components mounted thereon. Generally, the printed circuit or other items are carried through the apparatus between upper and lower foraminous conveyor belts, with one of the belts, conforming to the varying thicknesses of the items, or components carried by the items. While some of the air discharge tubes may be stationarily mounted, at least some of them are pivotally mounted, such that their discharge opening zones can slide along and conform to variations in thickness. The discharge tube will pivot in response to the varying thicknesses. The pivotal motion of the tube may be provided with a means for balancing the same.

REFERENCES:
patent: 3442708 (1969-05-01), Huddle
patent: 4015706 (1977-04-01), Goffredo et al.
patent: 4017982 (1977-04-01), Goffredo
patent: 4092991 (1978-06-01), Rohrs
patent: 4327756 (1982-05-01), Rath
patent: 4561904 (1985-12-01), Eberhardt, Jr.
patent: 4589926 (1986-05-01), Holmstrand
patent: 5012547 (1991-05-01), Marsh

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