Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 9, 2009
Patent Application Number
11783811
Date Filed
April 12, 2007
Patent Primary Examiner
Patent abstract
A mail screening device for hazardous materials is disclosed. The mail screening device comprises a sample collection unit that uses air jets or air knives to dislodge residues of hazardous materials from a mail, and a detection unit that detects the hazardous materials in the exhaust air flow. Comparing to traditional mail screening systems that use belts and rollers to physically pinch a mail for sample collection, the device of the present invention is less complex and easier to operate, thereby reducing installation, maintenance and replacement costs.
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