Detector of unauthorised objects in a protected access zone

Details Detector of unauthorised objects in a protected access zone Detector of unauthorised objects in a protected access zone

2006-07-25

2009-12-22

Previl, Daniel (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S438000, C340S425500, C324S200000, C324S228000

Reexamination Certificate

active

07636036

ABSTRACT:
A device for the detection of an unauthorised liquid or solid substance in a zone with protected access. The device includes a support base designed to receive a single foot, wearing a shoe of an individual to be checked, an electromagnetic field emitter/receptor operating at least at several frequencies in a specified range of frequencies, a position marker, on the support base, designed to impose a precise positioning of the foot wearing the shoe in relation to the emitter/receptor. The complex impedance is measured of the emitter/receptor influenced by a load which consists of the shoe and its contents, representing the complex dielectric characteristics of the shoe and of its contents. A mechanism is provided for supplying information associated with the measured complex impedance and therefore with the nature of the contents of the said shoe of the individual to be checked.

REFERENCES:
patent: 4012690 (1977-03-01), Heytow
patent: 4146231 (1979-03-01), Merkle et al.
patent: 5039981 (1991-08-01), Rodriguez
patent: 5121105 (1992-06-01), Aittoniemi
patent: 6133829 (2000-10-01), Johnstone et al.
patent: 6359582 (2002-03-01), MacAleese et al.
patent: 6750653 (2004-06-01), Zou et al.
patent: 6819241 (2004-11-01), Turner et al.
patent: 6970087 (2005-11-01), Stis
patent: 2002/0008655 (2002-01-01), Haj-Yousef
patent: 2002/0175849 (2002-11-01), Arndt et al.
patent: 2004/0113781 (2004-06-01), Stis
patent: 2005/0043608 (2005-02-01), Haj-Yousef
patent: 2005/0073307 (2005-04-01), Manneschi
patent: 2005/0116825 (2005-06-01), Manneschi
patent: 2006/0255798 (2006-11-01), Crowley et al.

Affiliated with

Also associated with

Rating

Detector of unauthorised objects in a protected access zone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detector of unauthorised objects in a protected access zone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detector of unauthorised objects in a protected access zone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4082845