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Apparatus and method for screening people and articles to detect and/or to decontaminate with respect to certain substances

  • US 6,375,697 B2
  • Filed: 09/02/1999
  • Issued: 04/23/2002
  • Est. Priority Date: 07/29/1999
  • Status: Expired due to Term
First Claim
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1. A walk-through portal for at least one of detection of a predetermined substance on a subject and decontamination of a subject from a predetermined substance, the walk-through portal comprising:

  • an enclosure defining an examination zone and being substantially open on at least one side, to permit a subject readily to enter and to exit the examination zone;

    a closure means for substantially closing off the examination zone from the exterior;

    an inlet into the examination zone and an outlet from the examination zone;

    a pump for pumping a gas through the inlet into the examination zone, over a subject to entrain at least one of vapours and particulates from such substance, and out through the outlet; and

    at least one flexible screen, closing off the examination zone.

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