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:
Apr. 21, 2015
Filed:
Dec. 12, 2012
Alexander Alekseevich Makarov, Bremen, DE;
Lothar Rottmann, Ganderkesee, DE;
Alexander Alekseevich Makarov, Bremen, DE;
Lothar Rottmann, Ganderkesee, DE;
Thermo Fisher Scientific (Bremen) GmbH, Bremen, DE;
Abstract
A method of operating a mass spectrometer vacuum interface comprising a skimmer apparatus having a skimmer aperture and downstream ion extraction optics. An expanding plasma is skimmed through the skimmer aperture. Within the skimmer apparatus, a portion of the skimmed plasma adjacent the skimmer apparatus is separated from the remainder of the skimmed plasma by providing means to prevent, inhibit or impede, the separated portion from reaching the extraction optics while allowing the remainder to expand towards the extraction optics. This allows removal of ions liberated from deposition matter on the skimmer apparatus surface, thereby discriminating against such ions, and offering reduced memory effects. The remainder of the plasma can expand towards the extraction optics, so interaction and mixing between the boundary layer and the remainder of the plasma can be reduced or minimized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile