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:
Oct. 14, 2025
Filed:
May. 19, 2020
Thermo Fisher Scientific (Bremen) Gmbh, Bremen, DE;
Henning Wehrs, Bremen, DE;
Thermo Fisher Scientific (Bremen) GmbH, Bremen, DE;
Abstract
An ion optical arrangement () for use in a mass spectrometer comprises electrodes () defining an ion optical path, a housing () for accommodating the electrodes, a voltage source for providing voltages to the electrodes to produce electric fields, and a valve for allowing gas to enter and/or leave the housing. The valve comprises an electrostatic mechanism and/or a pneumatic mechanism. The electrostatic mechanism may comprise a flexible foil () configured for covering at least one opening () in the ion optical arrangement when a first voltage is applied and being spaced apart from the at least one opening when a second voltage is applied. The pneumatic mechanism may comprise a Bourdon tube.