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:
Mar. 24, 2015
Filed:
Dec. 20, 2011
Applicants:
Yoshiaki Aso, Kyoto, JP;
Fujio Inoue, Kyoto, JP;
Inventors:
Yoshiaki Aso, Kyoto, JP;
Fujio Inoue, Kyoto, JP;
Assignee:
Shimadzu Corporation, Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/38 (2006.01); B01F 5/06 (2006.01); G01N 30/34 (2006.01);
U.S. Cl.
CPC ...
G01N 30/34 (2013.01);
Abstract
A plurality of suctioning flow paths for suctioning mobile phases meet each other at a meeting portion. The meeting portion is connected to an inlet flow path communicating with an inlet of a reciprocating pump. The suctioning flow paths are respectively provided with solenoid valves for opening and closing the respective flow paths. The suctioning flow paths are respectively provided with orifices between the solenoid valves and the meeting portion. The orifices are sections of the respective suctioning flow paths having smaller diameters.