Chemistry: physical processes – Physical processes – Crystallization
Patent
1976-07-16
1977-08-02
Serwin, R.E.
Chemistry: physical processes
Physical processes
Crystallization
23253R, 23259, 141130, G01N 3316, G01N 2124, G01N 114
Patent
active
040392864
ABSTRACT:
To permit flexibility in chemical testing steps, a plurality of automatic chemical apparatus units are arranged in modular form, each unit including a main sample receptacle transport conveyor to move the receptacle holding a sample to be tested in a main transport path, a plurality of test and treatment containers being associated with each unit, and a sampling transfer station is located to extract a sample of test substance from the sample receptacle and introduce it into one of the test and treatment containers, which test and treatment container is then moved in a separate test and treatment conveyor path along a plurality of testing and treatment stations until the entire analysis of the removed sample is completed, at which time a new sample receptacle is moved along the main path to the sampling transfer station for introducing a new sample into a subsequent test and treatment receptacle. Movement, in steps, of the sample receptacle and of the test and treatment containers is synchronized so that, at any one time, only one sample container is present at the sampling transfer station. If a plurality of such modular units are assembled together, the stepping of movement of the sample receptacle past the respective transfer stations of the respective modular units is controlled by the longest time period taken to carry out the analysis steps of any one modular unit, sample receptacles for subsequent tests being held at a sample feeder which supports the receptacles in a sinuous, meandering path for introduction, one at a time, to the analysis units in accordance with the slowest test procedures being carried out, so that errors in identification and coordination of test results with samples are reliably avoided.
REFERENCES:
patent: 3533744 (1970-10-01), Unger
patent: 3644095 (1972-02-01), Netheler et al.
patent: 3799744 (1974-03-01), Jones
patent: 3832140 (1974-08-01), Lorch et al.
patent: 3854879 (1974-12-01), Figueroa
patent: 3883305 (1975-05-01), Hoskins et al.
patent: 3883306 (1975-05-01), Widen
patent: 3897216 (1975-07-01), Jones
Keller Walter
Koukol Hubert
Ptaschek Werner
Wendt Dieter
Serwin R.E.
W. C. Heraeus GmbH
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