Printered circuit board screen printer vacuum holding apparatus

Details Printered circuit board screen printer vacuum holding apparatus Printered circuit board screen printer vacuum holding apparatus

1995-01-24

1998-08-11

Warden, Robert J.

Coating apparatus

Work holders, or handling devices

269 21, 269903, B05C 1302, B25B 1100

Patent

active

057922683

ABSTRACT:
Apparatus for supporting and holding a circuit board in place in a machine for screen printing a major surface thereof with solder paste. The apparatus includes a member with a surface on which a circuit board rests as the board receives solder paste printing through a screen. The surface has a main groove and distribution grooves that intersect the main groove in communicating relationship therewith at spaced locations along its length. Further, the member has an air removal passageway extending therethrough from one side to the opposite side thereof. The passageway terminates on the one side of the member at an opening located in the main groove. A circuit board resting on the surface over the grooves is held in place during screen printing with solder paste as a result of reduced air pressure established in the grooves when air is withdrawn therefrom through the passageway.

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patent: 4964335 (1990-10-01), Klemm
patent: 5054193 (1991-10-01), Ohms et al.
patent: 5141212 (1992-08-01), Beeding

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