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:
Dec. 11, 2018
Filed:
Nov. 10, 2014
Thermo Fisher Scientific (Bremen) Gmbh, Bremen, DE;
Hans-Juergen Schlueter, Bremen, DE;
Johannes Schwieters, Ganderkesee, DE;
Eric Wapelhorst, Bremen, DE;
Michael Krummen, Bad Zwischenahn, DE;
Thermo Fisher Scientific (Bremen) GmbH, Bremen, DE;
Abstract
A gas inlet systemfor an isotope ratio spectrometerand a method for coupling analyte gas to an isotope ratio spectrometerare disclosed. A variable volume reservoiris located between a supply of analyte gasand a spectrometer. The reservoir's internal volume is controllably adjusted at a pre-determined rate to generate a defined flow of analyte gas or mixture to or from the reservoir. Analyte gas and carrier gas are taken up by the reservoiron increasing the reservoir's internal volume and then expelled from the reservoir to the spectrometeron decreasing the reservoir's internal volume. An open splitcan be used together with the reservoirto facilitate splitting away and hence dilution of analyte within the reservoir. A method for cleaning the gas inlet systemis provided, which involves flushing the system with carrier gas.