Remote transmitting fenceline monitoring apparatus

Details Remote transmitting fenceline monitoring apparatus Remote transmitting fenceline monitoring apparatus

1992-12-14

1995-04-11

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340693, 73 3102, G08B 1710

Patent

active

054062659

ABSTRACT:
An apparatus placed at the "fenceline" (perimeter) of a site, to detect the possible existence of contaminants within the air and transmit an audio signal to a remote location indicating an irregularity in the air quality. Conventional audio transmitters such as a walkie-talkie may be used to detect an audio alarm signal from the contamination detection device and be received by a receiver, such as another walkie-talkie at a remote location. The monitoring system may be housed in a portable enclosure to protect the equipment from weather, vandalism or theft.

REFERENCES:
patent: 4063446 (1977-12-01), Fuhrmann
patent: 4088986 (1978-05-01), Boucher
patent: 4363031 (1982-12-01), Reinowitz
patent: 4443793 (1984-04-01), Hall, Jr.
patent: 4464653 (1984-08-01), Winner
patent: 4526028 (1985-07-01), Hubner
patent: 4572900 (1986-02-01), Wohltjen
patent: 4651141 (1987-03-01), Kimura
patent: 4665385 (1987-05-01), Henderson
patent: 4959637 (1990-09-01), Woods et al.
patent: 4999498 (1991-03-01), Hunt et al.

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