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:
Mar. 21, 2006
Filed:
Apr. 09, 2003
Robert J Cotter, Baltimore, MD (US);
Robert D. English, Galveston, TX (US);
Benjamin D. Gardner, Kalamazoo, MI (US);
Robert J Cotter, Baltimore, MD (US);
Robert D. English, Galveston, TX (US);
Benjamin D. Gardner, Kalamazoo, MI (US);
The Johns Hopkins University, Baltimore, MD (US);
Abstract
A mass spectrometer that includes an ionizing source, a sample holder arranged in a beam path of the ionizing source, an ion detector disposed to receive ions extracted from a sample when held by the sample holder and irradiated by the ionizing source. The mass spectrometer also includes an extraction electrode arranged proximate to the sample holder, and a drift tube arranged between the extraction electrode and the ion detector. In the mass spectrometer, the extraction electrode and the drift tube are movable together relative to the sample holder, which is held at a fixed position.