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. 13, 2012
Filed:
Aug. 18, 2010
Eloy R. Wouters, San Jose, CA (US);
Alexander A. Makarov, Bremen, DE;
R. Paul Atherton, San Jose, CA (US);
Jean Jacques Dunyach, San Jose, CA (US);
Eloy R. Wouters, San Jose, CA (US);
Alexander A. Makarov, Bremen, DE;
R. Paul Atherton, San Jose, CA (US);
Jean Jacques Dunyach, San Jose, CA (US);
Thermo Finnigan LLC, San Jose, CA (US);
Abstract
An ion transfer tube for a mass spectrometer comprises a tube member having an inlet end and an outlet end; and at least one bore extending through the tube member from the inlet end to the outlet end, the at least one bore having a non-circular cross section. A method of forming an ion transfer tube comprises the steps of providing a tube member having a length and an internal bore, the internal bore having a wall of circular cross section; and etching or eroding portions of the tube member adjacent to the wall so as to form an enlarged bore having a non-circular cross section.