Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent
1978-03-27
1979-12-04
McGraw, Vincent P.
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
356244, G01J 330
Patent
active
041769562
ABSTRACT:
The graphite sample tube used in flameless atomic spectroscopy is mounted in coaxial bores of two separated heating electrodes, each supported by a cooling jacket for carrying off the excess heat produced by the sample tube. Instead of being sealed with sealing rings, the cooling jackets contain seamless tubing that is tightly pressed in the grooves and carries a flow of suitable coolant. The tubing eliminates fluid eddies and thermal stresses which inevitably leads to coolant leaks. An additional feature is that one of the two cooling jacket housings is pivotally movable by a pneumatic actuator for easy removal of the graphite sample tubes and the inspection of the bores of the electrodes.
REFERENCES:
patent: 4019372 (1977-04-01), Parkell et al.
patent: 4022530 (1977-05-01), Braun et al.
Tamm Rolf G. A.
Tomoff Toma
Bodenseewerk Perkin-Elmer & Co. GmbH
Giaratana Salvatore A.
Grimes Edwin T.
Masselle Francis L.
McGraw Vincent P.
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