Method and means for delivering liquid samples to a sample scann

Details Method and means for delivering liquid samples to a sample scann Method and means for delivering liquid samples to a sample scann

1980-05-05

1983-01-04

McGraw, Vincent P.

Optics: measuring and testing

By particle light scattering

With photocell detection

340712, 356244, 356440, 422 67, 435219, G01N 2111, G01N 2100, G01N 1502

Patent

active

043670431

ABSTRACT:
Method and apparatus for semi-automatic feeding of liquid samples from a plurality of sample sources to a scanning device are disclosed. The liquid samples are picked up from a preidentified sample source and delivered to the scanning device by use of a hand-held pick-up and delivery tube. The hand-held tube is releasably coupled to the scanning device for delivery of the liquid samples to the scanning device when coupled thereto. In the disconnected condition, particle free fluid flows in a reverse direction from the scanning device for automatic flushing of the scanning device and liquid sample supply line connected thereto. Visual display means for visually indicating to the operator which sample holder the next sample is to be obtained from is provided.

REFERENCES:
patent: 3163699 (1964-12-01), Staunton
patent: 3704953 (1972-12-01), Carter et al.
patent: 3781120 (1973-12-01), Engelhardt
patent: 3826364 (1974-07-01), Bonner et al.
patent: 3976429 (1976-08-01), Ginsberg
patent: 4222036 (1980-09-01), Troukens
patent: 4240029 (1980-12-01), Haynes
patent: 4312591 (1982-01-01), Tomoff

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