Circuit arrangement for a buoyant alarm device

Details Circuit arrangement for a buoyant alarm device Circuit arrangement for a buoyant alarm device

1982-10-29

1985-09-10

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340573, 340602, 340618, 340623, 200 84R, G08B 108

Patent

active

045409765

ABSTRACT:
An improved circuit arrangement is described which is used with a buoyant device for indicating a disturbance to the quiescent level of a body of water. The circuit arrangement includes an encoder and transmitter which are supported by the device and which are adapted for transmitting encoded information in accordance with a predetermined pulse code to a remote receiver and alarm. Transmission of the encoded signal is terminated after a predetermined interval of time. The encoder and transmitter are coupled in the circuit for enhancing the turn off of a bi-stable switching circuit.

REFERENCES:
patent: 3778803 (1973-12-01), Jahn
patent: 3786469 (1974-01-01), Massaro et al.
patent: 3810146 (1974-05-01), Lieb
patent: 3953843 (1976-04-01), Codina
patent: 4121200 (1978-10-01), Colmenero

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