Inspecting the interior of an enclosure

Details Inspecting the interior of an enclosure Inspecting the interior of an enclosure

1976-06-30

1978-09-12

Swisher, S. Clement

Measuring and testing

Gas analysis

Moisture content or vapor pressure

350 61, 350 63, G01J 504

Patent

active

041127633

ABSTRACT:
A device for inspecting the interior of an enclosure comprises an instrument which receives radiation from the interior of the enclosure through an orifice at one end of the instrument. A screen located immediately in front of the instrument has an opening in register with the orifice. Compressed gas is passed between the instrument and the screen and escapes through the opening. The surface of the screen remote from the instrument is cleaned periodically or continuously, e.g. by scraping, at least around the opening.

REFERENCES:
patent: 2388386 (1945-11-01), Cohen
patent: 2745131 (1956-05-01), Auwarter
patent: 3310356 (1967-03-01), Borberg
patent: 3402418 (1968-09-01), Le Roy
patent: 3415994 (1968-12-01), Fitti, Jr.
patent: 3436965 (1969-04-01), Land
patent: 3437807 (1969-04-01), Moore
patent: 3475859 (1969-11-01), Pirlet
patent: 3609236 (1971-09-01), Heilman

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