Device and method for detecting hazardous material in mail

Details Device and method for detecting hazardous material in mail Device and method for detecting hazardous material in mail

2007-04-12

2009-06-09

Rogers, David A. (Department: 2856)

Measuring and testing

Gas analysis

Solid content of gas

C073S031010, C073S031020, C073S031030, C073S864330

Reexamination Certificate

active

07543478

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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