Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent
1980-12-12
1983-01-04
McGraw, Vincent P.
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
356417, 431126, 431346, G01N 2172
Patent
active
043670423
ABSTRACT:
A spectroanalytical instrument includes burner structure and a nebulizer for furnishing sample in fog form for flow through a premix chamber to the burner structure. Flow structure extending from a chamber port to a drain port provides a condensate flow path from the chamber to a drain. Trap structure is disposed in series in the flow path between the chamber port and the drain port, and drain line closure apparatus is switched between a first condition in which the drain line is closed and a second condition in which the drain line is opened by a control responsive to liquid in the trap structure such that the drain line is initially closed and is opened automatically in response to accumulation of condensate liquid in the trap structure to enable maintenance of positive pressure in the premix chamber.
REFERENCES:
patent: 3525476 (1970-08-01), Boling et al.
patent: 3583844 (1971-06-01), Smith
Shapiro Carl
Smith, Jr. Stanley B.
Instrumentation Laboratory Inc.
McGraw Vincent P.
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