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. 30, 2008
Filed:
Dec. 18, 2006
Paul R Atherton, San Jose, CA (US);
Jean Jacques Dunyach, San Jose, CA (US);
Maurizio Splendore, Walnut Creek, CA (US);
Eloy R. Wouters, San Jose, CA (US);
Paul R Atherton, San Jose, CA (US);
Jean Jacques Dunyach, San Jose, CA (US);
Maurizio Splendore, Walnut Creek, CA (US);
Eloy R. Wouters, San Jose, CA (US);
Thermo Finnigan LLC, San Jose, CA (US);
Abstract
An ion source includes an ion transfer tube having two segments for transporting a sample fluid containing ions between a first chamber and a second chamber maintained at a reduced pressure relative to the first chamber. A first segment may include a plurality of channels and heat conductive walls forming the plurality of channels. The plurality of channels and walls forming the channels promote efficient convective heat transfer to the sample fluid, thereby enabling operation at relatively high sample fluid flow rates, resulting in an increase in the number of ions that may be delivered to a mass analyzer. A second segment forms a single common channel that receives a plurality of sample streams and enables them to combine into a single ion stream that may be introduced as a single gas stream expansion into the second chamber.