Access annunciator

Details Access annunciator Access annunciator

2006-07-25

2006-07-25

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specified indicator structure

C340S545100, C340S523000, C340S528000

Reexamination Certificate

active

07081826

ABSTRACT:
An electronic device that functions as an area-intrusion informing device for announcing the unauthorized entry into an enclosure or area which has at least one access opening and closing means. The device uses components that are small for inconspicuous insertions, or for surface mounting, and preferably utilizes a dummy hinge arrangement as an electrical conductor between the various components. The device is used for access doors, windows, filing cabinets, desk draws, closets, and the like, and typically includes at least one light emitting diode, an optional numeric liquid crystal display, a timer, and alert signaling and reset components. The components act together to provide notification of illegal entry between the times of departure, and arrival, of authorized users of the enclosure or area. A simple security alert system is provided.

REFERENCES:
patent: 4211990 (1980-07-01), Gwozdz
patent: 4284861 (1981-08-01), Senften
patent: 4422068 (1983-12-01), Helft et al.
patent: 4427975 (1984-01-01), Kinzie
patent: 4797663 (1989-01-01), Rios
patent: 4833449 (1989-05-01), Gaffigan
patent: 5144283 (1992-09-01), Arens et al.
patent: 5705982 (1998-01-01), Faltings
McKinney Hinge Catalog—ElectroLynx Hinge (QC Option), www.mckinneyhinge.com, Jun. 2004.

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