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:
Feb. 23, 1988
Filed:
Nov. 12, 1986
Norman A Reese, Whittier, CA (US);
Jack Berroteran, Orange, CA (US);
Chevron Research Corporation, San Francisco, CA (US);
Abstract
The present invention provides an apparatus and method for trapping and injecting a fluid sample (liquid or gas) at high temperature and pressure without any sample loss. Here, a sample is flowed into an aperture in the valve body and then into a sample chamber. The sample chamber is mounted in a slidable stem and once the sample is in the sample chamber, the stem is moved to a position to seal off the sample. Once the sample is trapped, the valve is moved to a chromatograph (while maintaining the sample at pressure and temperature), flushed with a carrier gas, and the stem is moved to open the sample chamber to the gas. This flushes the sample and moves it to the chromatograph.