Method and device for the treatment of printed circuit boards

Details Method and device for the treatment of printed circuit boards Method and device for the treatment of printed circuit boards

1985-01-24

1986-09-16

Smith, John D.

Coating apparatus

Projection or spray type

Plural projectors

118324, 118326, 427 97, H05K 314, H05K 342

Patent

active

046115544

ABSTRACT:
A device and method for the treatment of printed circuit boards with process solutions, in which the boards being treated are continually vertically moved by a transporting conveyer above an accumulating reservoir and below spraying nozzles which apply a process solution to the side surfaces of each board. Two collecting receivers are arranged in mirror-inverted relationship at two sides of the boards being treated. The reservoir, into which the process solution drains from the receivers and the boards, is connected to the spraying nozzles by tubular conduits, provided with regulating valves, in a closed circuit, whereby the accumulated solution is fed back to the nozzles.

REFERENCES:
patent: 3122449 (1964-02-01), Swanson
patent: 3298588 (1967-01-01), Shomphe
patent: 3798050 (1974-03-01), Franz
patent: 3931790 (1976-01-01), Franz
patent: 4539069 (1985-09-01), Fishman

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