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.

Date of Patent:
Jul. 10, 2018

Filed:

Sep. 29, 2015
Applicant:

Smiths Detection-watford Limited, Hertfordshire, GB;

Inventor:

William Angus Munro, Hertfordshire, GB;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); G01N 27/62 (2006.01); H01J 49/06 (2006.01);
U.S. Cl.
CPC ...
G01N 27/622 (2013.01); H01J 49/0027 (2013.01); H01J 49/061 (2013.01);
Abstract

An ion mobility spectrometer () comprising a first ion source (--) for providing positive ions to be analyzed, an electric field applier arranged to provide an electric field configured to move the positive ions in a first direction towards a first ion detector (--) adapted for detecting the positive ions, and a second ion source (--) for providing negative ions to be analyzed, wherein the electric field applier is arranged to move the negative ions in a direction opposite to the first direction, towards the first ion source (--) and towards a second ion detector (--) adapted for detecting the negative ions.


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