US 4,699,766 AGranted

Automatic chemical analyzer

AssigneeKabushiki Kaisha Toshiba

InventorKiyoshi Yamashita

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Abstract

An automatic chemical analyzer comprises a first rotating table supporting a plurality of reaction tubes along a circular first arrangement line and adapted to be intermittently rotated by a first drive motor, and a second rotating table supporting another plurality of reaction tubes along a circular second arrangement line concentric with the first arrangement line and adapted to be intermittently rotated in synchronism with the first table by a second drive motor. The reaction tubes are transferred between the first and second tables. A sampling nozzle, a diluent nozzle, and a plurality of reagent nozzles are fixedly arranged right over the reaction tubes supported by the first and second tables. A specimen, diluent and reagents are injected into the reaction tubes through the nozzles. The absorbance or other property of mixtures of the specimen, diluent and reagents are measured by a measuring system whose measuring point moves along the second arrangement line.

Claims6

Dependent claims

An automatic chemical analyzer comprising:

first support means for supporting a plurality of vessels along a first circular arrangement line;
second support means for supporting another plurality of vessels along a second circular arrangement line concentric with the first circular arrangement line, one of said first and second circular arrangement lines being within the other of said first and second circular arrangement lines;
first drive means for driving the first support means so that vessels supported by the first support means move along the first circular arrangement line, and for driving the second support means so that vessels supported by the second support means move along the second circular arrangement line;
transfer means for transferring vessels between the first and second support means;
supply means for feeding substances into vessels supported on at least one of said first and second support means, said supply means including a plurality of nozzles fixedly arranged along at least one of the two circular arrangement lines, said nozzles individually feeding different kinds of substances into vessels supported on at least one of said first and second support means;
and
means for measuring a predetermined property of substances which have been fed in vessels in at least one of the first and second arrangement lines by said supply means, said measuring means having a measuring point which can move along said one circular arrangement line.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/867,920Filed 29 May 1986
Priority: JP 60-11863530 May 1985
Granted: 13 Oct 1987
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G01N 35/025
Using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations: having a carousel or turntable…
G01N 2035/0458
Rotary sample carriers, i.e. carousels: multiple concentric rows of wells
Y10T 436/114165
With conveyance of sample along a test line in a container or rack: with step of insertion or removal from test line
G01N
Investigating or analysing materials by determining their chemical or physical properties