Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Reexamination Certificate
2007-06-05
2007-06-05
Evans, F. L. (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
Reexamination Certificate
active
11139735
ABSTRACT:
An optical emission spectrometer for analysis, identification or identity testing of metallic materials, and a method for optical emission analysis of metallic materials with a spectrometer, wherein the spectrometer has at least one arc or spark generator for producing a discharge between an electrode and a workpiece in a spark stand chamber of the generator. A cleansing apparatus for air about the discharge includes a pump for feeding air into the spark stand chamber, and a container through which air can flow. The container contains an alkaline metal or alkaline earth metal hydroxide or another substance that binds CO2present in air.
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Article, P.A. 416727★-3.7.61 “Spectrographische . . . Stählen” (Török & Szikora).
Article, Phillips, “Luft- . . . PV 8250”.
Evans F. L.
Spectro Analytical Instruments GmbH & Co. KG
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