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:
Nov. 15, 2022
Filed:
Jun. 17, 2021
Thermo Finnigan Llc, San Jose, CA (US);
Scott T. Quarmby, Round Rock, TX (US);
Joshua T. Maze, Round Rock, TX (US);
Thermo Finnigan LLC, San Jose, CA (US);
Abstract
A mass spectrometer collision cell system, comprising: a gas containment vessel comprising an internal chamber having ion inlet and ion outlet ends and a cross-sectional area, A; a gas inlet aperture; first and second gas outlet apertures that are disposed at or proximal to the ion inlet and outlet ends, respectively, and that have respective outlet aperture cross-sectional areas, Aand A, and an average outlet aperture cross-sectional area, A; a longitudinal axis of the chamber extending from the ion inlet end to the ion outlet end and having a length, L; and a set of multipole rod electrodes, at least a portion of each multipole rod electrode being within the chamber, wherein the values of A, Land Aare such that the combined gas conductance of the chamber and the gas outlet apertures is not greater than 95 percent of the gas conductance of the gas outlet apertures alone.