NON-INVASIVE METHOD AND SYSTEM FOR SCREENING THE CONTENT OF CONTAINERS FOR THE PRESENCE OF THREAT SUBSTANCES
First Claim
1. A method of screening the content of an enclosure for the presence of one or more target substances comprising:
- drawing air from the enclosure and passing the drawn air across at least one sampling card having a coating configured to absorb/adsorb the one or more target substances; and
thereafter analyzing the card to determine if the coating has absorbed/adsorbed one or more target substances.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention is a method and system of screening the content of an enclosure, such as a cargo container, for the presence of one or more target substances, such as explosives or drugs, comprising drawing air from the enclosure and passing the drawn air across at least one sampling card having a coating configured to absorb/adsorb the one or more target substances and thereafter analyzing the sampling card to determine if the coating has absorbed/adsorbed one or more target substances. The system embodiment includes a vacuum source, a conduit coupled to the vacuum source and a sampling card holder disposed along the conduit. The sampling card holder removably holds at least one sampling card having a coating thereon configured to absorb/adsorb the one or more target substances, so that air drawn into the conduct from the enclosure passes across the at least one sampling card.
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Citations
6 Claims
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1. A method of screening the content of an enclosure for the presence of one or more target substances comprising:
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drawing air from the enclosure and passing the drawn air across at least one sampling card having a coating configured to absorb/adsorb the one or more target substances; and thereafter analyzing the card to determine if the coating has absorbed/adsorbed one or more target substances. - View Dependent Claims (2, 3, 4, 5)
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6. A system for screening the content of an enclosure for the presence of one or more target substances comprising:
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a vacuum source; a conduit coupled to said vacuum source; and a sampling card holder disposed along said conduit, said sampling card holder removably holding at least one sampling card having a coating thereon configured to absorb/adsorb the one or more target substances, so that air drawn into said conduct from the enclosure passes across the at least one sampling card.
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Specification