The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1998
Filed:
Apr. 24, 1996
Francis C Nutter, Methuen, MA (US);
David A Bloom, Hudson, NH (US);
BTU International, Inc., North Billerica, MA (US);
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.