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. 09, 2014
Filed:
Oct. 04, 2013
Thermo Finnigan Llc, San Jose, CA (US);
Eloy R. Wouters, San Jose, CA (US);
R. Paul Atherton, San Jose, CA (US);
Satendra Prasad, San Jose, CA (US);
Jean-Jacques Dunyach, San Jose, CA (US);
Thermo Finnigan LLC, San Jose, CA (US);
Abstract
A method for transporting ions within a mass spectrometer comprises: inputting the ions and neutral molecules to a first end of an ion transport apparatus comprising a plurality of non co-planar ring-shaped electrode portions having respective central apertures having centers that lie along a common axis and that define an ion channel, the radii of the central apertures decreasing in a direction from the first end to a second end of the ion transport apparatus; applying a set of Radio Frequency voltages to the plurality of electrode portions such that the ions remain substantially confined to the ion channel while passing from the first to the second end; and exhausting the neutral molecules from the ion transport apparatus though a plurality of channels or apertures other than the apertures that define the ion channel, the exhausting performed in one or more directions that are non-perpendicular to the axis.