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:
Jun. 04, 2019
Filed:
Aug. 04, 2018
Ching Wu, Boxborough, MA (US);
Ching Wu, Boxborough, MA (US);
Excellims Corporation, Acton, MA (US);
Abstract
The present invention relates to drift tubes for ion mobility spectrometers. In one embodiment, the drift tube of the present invention uses a simplified design having helical resistive material to form substantially constant electric fields that guide ion movements. The drift tube for ion mobility spectrometers described herein is constructed with a non-conductive structure. This configuration provides a robust ion mobility spectrometer that is simple to build. One feature of the present invention is that the drift tube design described herein enables the ion mobility spectrometer to be built with a lower weight, lower power consumption, lower manufacturing cost, and free of sealants.