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.

Date of Patent:
Jun. 10, 2014

Filed:

Jan. 10, 2013
Applicant:

Hitachi High-technologies Corporation, Tokyo, JP;

Inventors:

Hironobu Yamakawa, Tokyo, JP;

Yoichi Aruga, Mito, JP;

Takenori Okusa, Mito, JP;

Taisaku Seino, Hitachinaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/50 (2006.01); B01F 13/02 (2006.01); G01N 35/02 (2006.01); G01L 9/00 (2006.01); G01N 35/00 (2006.01); G01N 35/04 (2006.01);
U.S. Cl.
CPC ...
B01F 13/0272 (2013.01); G01N 35/025 (2013.01); G01N 2035/00544 (2013.01); G01N 2035/0437 (2013.01); G01L 9/00 (2013.01); G01L 9/0041 (2013.01);
Abstract

An automatic chemical analyzer in which a reaction solution is stirred by air ejected from an air ejection hole placed above a reaction container. The reaction region can be washed and cleaned sufficiently without causing damage, such as exfoliation of a coating reagent. A reaction container disk is provided with a pore and a pressure detector connected with the pore. Before and after the stirring operation, the ejection hole (nozzle) ejecting air is moved and the output value of the pressure detector is compared with a previously measured normal value. With a discharge pipe and a suction pipe inserted to the opening of the reaction container to be close to both ends of the opening and the side wall of the container, the reaction region at the bottom of the container is washed by continuous discharge and suction of cleaning fluid.


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