Air curtain device

Details Air curtain device Air curtain device

1976-03-11

1977-09-06

Myracle, Jerry W.

Measuring and testing

Gas analysis

Gas chromatography

340 37R, G01N 3322

Patent

active

040459977

ABSTRACT:
This invention relates to a novel air curtain device suitable for use in detecting certain characteristic vapors emitted from objects, particularly individuals, positioned therein. An air curtain having a uniform velocity profile is set up between first and second cabinets. Vapor detector probes are positioned in one cabinet downstream of the air curtain. Detectable vapors carried by an object, such as a person within the air curtain, are stripped off and transported to the vapor detectors. By positioning the vapor detectors remote from the object, a significantly higher number of objects can be screened using known vapor detection techniques within a given period of time.

REFERENCES:
patent: 3430482 (1969-03-01), Dravnieks et al.
patent: 3725895 (1973-04-01), Haynes
patent: 3942357 (1976-03-01), Jenkins

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