Portal vapor detection system
First Claim
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1. A vapor sampling system for sampling vapor proximal to a body of a subject, the system comprising:
- a vapor analyzer to determine the components of a sample of gas;
a moveable panel positioned in a doorway. the panel supporting a sampling tube with inlet ports through which vapor samples are drawn, the sampling tube transporting a gas flow from the inlet ports to the vapor analyzer, and the inlet ports drawing the gas flow from a region proximal to the body of the subject as the panel is displaced by the body of the subject passing through the doorway.
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Abstract
A portal vapor detection system for sampling air proximal to the bodies of individuals in which air sampling tubes positioned within movable panels convey a gas flow into an analyzing system. Low vapor pressure materials such as plastic explosives or illicit drugs carried by individuals can be detected thereby enabling the prevention of their transport into aircraft or secured areas.
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Citations
20 Claims
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1. A vapor sampling system for sampling vapor proximal to a body of a subject, the system comprising:
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a vapor analyzer to determine the components of a sample of gas; a moveable panel positioned in a doorway. the panel supporting a sampling tube with inlet ports through which vapor samples are drawn, the sampling tube transporting a gas flow from the inlet ports to the vapor analyzer, and the inlet ports drawing the gas flow from a region proximal to the body of the subject as the panel is displaced by the body of the subject passing through the doorway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vapor sampling system for sampling the vapor proximal to the body of a subject, the system comprising:
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a tube having an inlet port through which an intake gas flow is drawn, the tube being rotatably mounted within a portal through which the subject passes thereby causing rotation of the tube relative to the portal with the tube being shaped to allow a side of the tube with the inlet port to contact the subject, drawing the intake gas flow from a region proximal to the body of the subject into the tube; a vapor analyzer with detection means for detecting a vapor; a suction means for drawing the intake gas flow into the vapor analyzer through the sampling tube; and signalling means for providing a detection signal responsive to the vapor analyzer for indicating the presence of said vapor in the vapor analyzer. - View Dependent Claims (10, 11, 12)
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13. A method for sampling the vapor proximal to the body of a subject, the method comprising:
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drawing an intake gas flow through the inlet ports of a plurality of sampling tubes, the tubes being attached to a moveable panel residing in a doorway and leading to a vapor analyzer, a sample of vapor being collected from the proximal region of the body of the subject as the moveable panel is displaced by the body of the subject passing through the doorway; analyzing the vapor with the vapor analyzer to detect a quantity of a vapor of interest as the gas flow is drawn into the vapor analyzer; and providing a signal responsive to the vapor analyzer, the signal issued when the predetermined quantity of the vapor of interest is detected by the vapor analyzer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification