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:
Jul. 19, 2011
Filed:
Nov. 19, 2007
Yoshiaki Maeda, Kyoto, JP;
Nobuyuki Tatsumi, Kyoto, JP;
Yoshiaki Maeda, Kyoto, JP;
Nobuyuki Tatsumi, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
An auto-sampler cleaning mechanism is provided, which is capable of maintaining the supply of a liquid in a non-time-consuming manner when a cleaning solution is supplied. The auto-sampler cleaning mechanism of the present invention includes: a sample-metering sample loophaving a sample-injecting needleat a front end thereof, a metering pump, a multi-ported valve, a multi-position valve, and a liquid-supply valve. A diaphragm pumpis disposed between the port of the multi-position valveand the port of the liquid-supply valve, and used to supply a cleaning solutionor a mobile phaseto the sample loop