Coating apparatus – With heat exchange – drying – or non-coating gas or vapor... – With housing surrounding or engaging coating means
Patent
1996-12-20
1999-03-02
Edwards, Laura
Coating apparatus
With heat exchange, drying, or non-coating gas or vapor...
With housing surrounding or engaging coating means
118213, 118406, 118504, 118505, 427 96, 427272, 427282, 1011271, B05C 2100
Patent
active
058764984
ABSTRACT:
A device for preserving solder paste in the manufacturing of printed circuit board assemblies. In one embodiment, the preserving device has a frame adapted to be positioned on a stencil plate of a solder paste stenciling machine and a cover coupled to the frame. The frame has a wall that is configured to substantially surround at least a portion of the solder paste on the stencil plate between printing cycles. In a preferred embodiment, the wall is configured to surround a working region on the stencil plate defined by the area on the stencil plate that the solder paste contacts during a printing cycle. The cover is coupled to the frame to form a protective compartment that substantially houses the solder paste between printing cycles. As a result, the preserving device restricts the airflow across the solder paste to protect the solder paste from environmental elements within the stenciling machine.
REFERENCES:
patent: 4784310 (1988-11-01), Metzger et al.
patent: 5400914 (1995-03-01), Lin
patent: 5622108 (1997-04-01), Benedetto et al.
Edwards Laura
MOMS, Inc.
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