Solder reflow furnace having a boroscope viewing assembly

Details Solder reflow furnace having a boroscope viewing assembly Solder reflow furnace having a boroscope viewing assembly

1996-04-24

1998-09-01

Pham, Hoa Q.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

G01N 2100

Patent

active

058018255

ABSTRACT:
A boroscope viewing assembly allows viewing of the process chamber of a solder reflow furnace. A boroscope is removably supported within a cylindrical viewing port permanently mounted through the furnace housing. Coolant gas is flowable along the viewing port annularly surrounding the boroscope to cool the boroscope. The flow of coolant into the process chamber keeps flux vapors away from the boroscope. A sealing assembly seals the boroscope to the viewing port. The sealing assembly can be a gland fitting on the boroscope eyepiece or a compression sealing assembly. When the boroscope is removed, a plug can be placed in the end of the viewing port to seal the process chamber.

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patent: 5423481 (1995-06-01), Thomas
patent: 5594548 (1997-01-01), Kobayashi et al.

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