The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 1984
Filed:
Sep. 02, 1982
Hiroshi Umetsu, Katsuta, JP;
Hirotaka Sato, Hitachi, JP;
Katsuji Yamashita, Katsuta, JP;
Yoshimitsu Shibano, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A chemical analyzer is disclosed in which a sample is supplied from a sample cup on a sample table to an array of reaction cups on a reaction table so that the reaction cups contain the same amount of sample, a reagent pipetting nozzle sucks an appropriate reagent solution from an array of reagent tanks and discharges the reagent solution into a corresponding reaction cup, the sample having reacted with the reagent solution is optically measured by a multi-wavelength photometer, a plurality of reagent tanks containing different reagent solutions are placed in a refrigerator with the openings of the reagent tanks being directed upward, the refrigerator is provided with a cover which has holes provided at positions corresponding to the openings of the reagent tanks, these holes are closed by a shutter except when the reagent pipetting nozzle is inserted into these holes, the array of reaction cups is immersed in constant-temperature-water contained in a reaction bath, the reaction bath is supplied with water which is kept at 37.degree. C. in a liquid bath by means of an evaporator and a heater, and a refrigerant from a refrigerating machine passes through an evaporator provided in the refrigerator and the evaporator provided in the liquid bath to be returned to the refrigerating machine.