Means for observing gas-tight and pressure-tight closed chambers

Details Means for observing gas-tight and pressure-tight closed chambers Means for observing gas-tight and pressure-tight closed chambers

1989-10-17

1990-10-09

Arnold, Bruce Y.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

25037009, G02B 500, G02B 2702

Patent

active

049616285

ABSTRACT:
There is disclosed a viewing window assembly for observing gas-tight and pressure-tight closed chambers of installations from outside comprising a cylindrical frame made of metal, in which is arranged a transparent insert. The frame is made of a stainless steel of low coefficient of thermal expansion and the insert is made of a glass having a similar or still smaller coefficient of thermal expansion.

REFERENCES:
patent: 1975703 (1934-10-01), Vitale
patent: 3335607 (1967-08-01), Seekins

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