Abrading – Machine – Sandblast
Patent
1997-02-13
1998-02-24
Smith, James G.
Abrading
Machine
Sandblast
451 39, B24C 300
Patent
active
057206503
ABSTRACT:
A gas analysis apparatus for analysis of sample gas wherein the apparatus has a mechanism for cleaning optical elements such as reflectors and windows in the apparatus is provided. The gas analysis apparatus includes a light source for emitting light, a body having an isolated cavity in which the light emitted by the light source propagates, a detector for analyzing light scattered by the sample gas in the isolated cavity, and a spraying system connected to the body to spray a sublimable substance. The isolated cavity has one or more optical elements each with a surface. The spray of the sublimable substance is directed onto such a surface for in situ removal of contaminants. The body has a sample inlet port for introducing the sample gas into the cavity and an outlet port for venting gas from the cavity.
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Hopkins, II George W.
Mauze Ganapati R.
Simons Tad Decatur
Banks Derris H.
Hewlett--Packard Company
Smith James G.
Yip Philip S.
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