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. 29, 1997
Filed:
Mar. 21, 1996
Vladimir E Frankevich, West Lafayette, IN (US);
Manish H Soni, West Lafayette, IN (US);
Mario Nappi, West Lafayette, IN (US);
Robert E Santini, West Lafayette, IN (US);
Jonathan W Amy, West Lafayette, IN (US);
Robert G Cooks, West Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
The invention relates to an ion trap mass spectrometer of the type having an ion trapping volume defined by spaced end caps and a ring electrode. The ion trap includes a small sensing electrode which senses characteristic motion of ions trapped in said trapping volume and provides an image current. Ions are excited into characteristic motion by application of an excitation pulse to the trapped ions. The invention also relates to a method of operating such an ion trap.