Solder reflow furnace having a boroscope viewing assembly
US5801825A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Apr 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/2492
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.