US Patent 7298127 Particle detection

Patent 7298127 was granted and assigned to Smiths Detection on November, 2007 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Smiths Detection

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7298127

Date of Patent

November 20, 2007

Patent Application Number

10595082

Date Filed

September 3, 2004

Patent Primary Examiner

‌

Walter Benson

Patent abstract

Particle detection and characterizing apparatus has an insulating tube along which the particles flow. Five electrodes spaced along the outside of the tube are connected via amplifiers to a processor arranged to measure the charge on the particles. The apparatus also includes a laser and photomultiplier tube arranged to measure the size of the particles so that the nature of the particles can be characterized from their electrical charge and size.