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Publication numberUS3883305 A
Publication typeGrant
Publication dateMay 13, 1975
Filing dateMar 14, 1973
Priority dateMar 21, 1972
Also published asCA1027836A1, DE2313617A1
Publication numberUS 3883305 A, US 3883305A, US-A-3883305, US3883305 A, US3883305A
InventorsArthur William Dunsmore, Thomas Horne, Douglas Haig Hoskins, Graham Roger Jarman
Original AssigneeCoulter Electronics
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Automatic chemical analysis apparatus
US 3883305 A
Abstract
An automatic chemical analysis apparatus having separate closed-looped conveyors for sample and reactant containers. At a fixed location, sample portions from a given sample are transferred to a serial sequence of reactant containers. Colourimetric testing is arranged such that all of the reactant products of the given sample are tested simultaneously. Sample and reactant products identification are obtained at the time the reactant containers are at the colourimeter station, at which time the sample container is at a variably positioned identification station, the position being dictated by the number of sample portions being tested for that given sample.
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Description  (OCR text may contain errors)

United States Patent 1191 Hoskins et al.

[ AUTOMATIC CHEMICAL ANALYSIS APPARATUS [75] Inventors: Douglas Haig lloskins, St. Albans;

Thomas Horne, Wobum Bletchley; Graham Roger Jarman; Arthur William Dunsmore, both of Dunstable, all of England [73] Assignee: Coulter Electronics, lnc., Hialeah,

Fla.

22 Filed: Mar. 14,1973

21 Appl. No.: 341,069

1 1 May 13, 1975 Primary Examiner-R. E. Serwin Attorney, Agent, or Firm-Si|verman & Cass, Ltd.

[57] ABSTRACT An automatic chemical analysis apparatus having separate closed-looped conveyors for sample and reactant containers. At a fixed location, sample portions from a given sample are transferred to a serial sequence of reactant containers. Colourimetric testing is arranged such that all of the reactant products of the given sample are tested simultaneously. Sample and reactant products identification are obtained at the time the reactant containers are at the colourimeter station, at which time the sample container is at a variably positioned identification station, the position being dictated by the number of sample portions being tested for that given sample.

27 Claims, 34 Drawing Figures PATENIEU um 1 3mm SHEET IBUF 20 SHEET IBM 20 Snu Ru @o H Q mp wwm

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Classifications
U.S. Classification422/65, 422/109, 422/67, 422/69, 422/72, 141/130, 422/534, 422/547
International ClassificationG01N35/04, G01J3/46, G01N35/02
Cooperative ClassificationG01N35/021, G01N35/02
European ClassificationG01N35/02, G01N35/02B