Driver alert device

Details Driver alert device Driver alert device

1975-01-20

1976-02-10

Swann, III, Glen R.

Communications: electrical

Systems

Call station

200DIG2, G08B 2100

Patent

active

039381234

ABSTRACT:
Alert apparatus worn by a driver includes a motion responsive switch including a pendant wiper associated with a plurality of closely spaced contacts surrounded by an auxiliary contact. A plurality of resistors of different values are respectively coupled to different ones of the contacts for randomly placing different ones of the resistors in a circuit for charging a selected capacitor coupled to the wiper. An amplifier and switching circuit energizes an alarm when the capacitor is charged to a predetermined level and the auxiliary contact is coupled to the capacitor to enable its discharge as the wiper is accellerated against the auxiliary contact in response to deliberate shaking movement by the operator.

REFERENCES:
patent: 3208062 (1965-09-01), Gregory
patent: 3588864 (1971-06-01), Gaulke
patent: 3678494 (1972-07-01), Setser

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