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:
Aug. 17, 1999
Filed:
Dec. 03, 1997
Shigeaki Shibamoto, Kyoto, JP;
Koji Omiya, Shiga, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A gas chromatograph has a sample vaporization chamber connected to a column for vaporizing a liquid sample injected therein and introducing this vaporized liquid sample with a carrier gas into the column. There is also a flow rate control device for controlling the flow rate of the carrier gas either as it is being supplied into the vaporization chamber or as it is being discharged from the vaporization chamber through a discharge route other than the column for keeping the gas pressure approximately constant inside the vaporization chamber. A leakage detector detects a leakage of gas from the vaporization chamber on the basis of either a target value set for the flow rate control device or a monitored value of the flow rate. A warning device outputs a warning when a gas leakage is detected by the leakage detecting device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile