Monitoring device for delivering an alarm signal in dependency o

Details Monitoring device for delivering an alarm signal in dependency o Monitoring device for delivering an alarm signal in dependency o

1981-07-27

1984-11-13

Swann, III, Glen R.

Communications: electrical

Selective

Having indication or alarm

235 95R, 235132E, 340688, B60Q 100, G08B 2100

Patent

active

044828845

ABSTRACT:
A monitoring device for emitting an alarm signal by means of an alarm transmitter in dependency on the count result of a counter with at least one roller, particularly a kilometer counter, with a first sensing element which has a predetermined roller position for the emission of a first position-dependent signal. For emitting the alarm signal, from the second time of arrival of the roller from the zero position into the predetermined roller position, there is an activation circuit arrangement, also controlled in dependency on the roller position, which activation circuit arrangement before the second time of arrival of the roller into the predetermined roller position makes inoperative either the emission of the first position-dependent signal from the first sensing element or its retransmission to the alarm transmitter.

REFERENCES:
patent: 3789196 (1974-01-01), Kinemura et al.
patent: 3925754 (1975-12-01), Ota et al.
patent: 4284972 (1981-08-01), Chiu et al.
patent: 4300117 (1981-11-01), Horii et al.

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