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:
Sep. 07, 2021
Filed:
May. 07, 2020
Thermo Finnigan Llc, San Jose, CA (US);
Thermo Fisher Scientific (Bremen) Gmbh, Bremen, DE;
Joshua A. Silveira, San Jose, CA (US);
Eloy R. Wouters, San Jose, CA (US);
Alexander A. Makarov, Bremen, DE;
Mikhail G. Skoblin, Dolgoprudny, RU;
Viacheslav I. Kozlovskiy, Chernogolovka, RU;
THERMO FINNIGAN LLC, San Jose, CA (US);
Thermo Fisher Scientific (Bremen) GmbH, Bremen, DE;
Abstract
An ion transport system comprises: (I) an ion transfer tube extending between an atmospheric-pressure ionization chamber and a partially evacuated chamber; and (II) an ion funnel within the chamber comprising: (1) an exit electrode that has an exit aperture configured to deliver the gas and charged particles to a high-vacuum chamber; and (2) a funnel portion comprising a plurality of plate electrodes configured as a stack, each electrode comprising a respective aperture, wherein an aperture diameter of each of the plurality of electrodes is greater than or equal to three times an inter-electrode pitch and wherein no DC electrical potential gradient is applied between the exit electrode and an adjacent one of the plurality of plate electrodes.