Chemistry: physical processes – Physical processes – Crystallization
Patent
1978-02-21
1980-06-10
Scovronek, Joseph
Chemistry: physical processes
Physical processes
Crystallization
734256, 422 63, 422 81, G01N 114, G01N 3300
Patent
active
042070740
ABSTRACT:
A liquid sample distributor comprises a sample transfer tube having a nozzle at one end for suction and discharge of a sample, a first switchable valve located intermediate the length of the sample transfer tube, a first sample suction pump and a second sample discharge pump located on the opposite sides of the first switchable valve and connected with the sample transfer tube, a second switchable valve connected with the other end of the transfer tube, and a rinsing water vessel connected with the transfer tube through the second switchable valve. The displacement of the second pump is equal to the quantity of a liquid sample to be distributed while the displacement of the first pump is greater than the given quantity of the liquid sample. A liquid sample is initially suctioned into the nozzle by the first pump in a quantity which is greater than the given quantity to be distributed, and the given quantity thereof is discharged through the second pump for purposes of distribution. Subsequently, the remaining quantity of the liquid sample is discharged by the first pump so as to be discarded. In this manner, a variation in the quantity and the concentration of the liquid sample being distributed is avoided, assuring a smooth distributing operation.
REFERENCES:
patent: 3484207 (1969-12-01), Anthon
patent: 3666420 (1972-05-01), Paatzsch
patent: 3848470 (1974-11-01), Hargash et al.
patent: 3948605 (1976-04-01), Atwood et al.
patent: 3948607 (1976-04-01), Atwood et al.
patent: 3963148 (1976-06-01), Proni et al.
Olympus Optical Co,. Ltd.
Scovronek Joseph
LandOfFree
Liquid sample distributor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid sample distributor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid sample distributor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-860857