Ventilation unit for a flame photometric detection device

Details Ventilation unit for a flame photometric detection device Ventilation unit for a flame photometric detection device

1990-09-12

1991-10-01

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356417, G01J 3443, G01N 2172

Patent

active

050528050

ABSTRACT:
A ventilation unit for a flame photometric detector that utilizes a vent tube, which communicate with the combustion chamber of the detection device and a cap which fits onto the tube to form a tortuous light path, such that the escape of combustion products through the vent tube does not allow extraneous light to enter the combustion chamber, a series of threads and tabs on the tube and cap allow the cap to be threaded onto yet to fit loosely about the tube.

REFERENCES:
patent: 3137759 (1964-06-01), Isreeli
patent: 3791743 (1974-02-01), Cody et al.
Bulletin 4-7006, The N.I.L. Digital Flame Photometer, National Instrument Laboratories, Inc., May 1968.

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