Device for precluding a collision between a mobile object and a

Details Device for precluding a collision between a mobile object and a Device for precluding a collision between a mobile object and a

1975-04-18

1977-08-02

Schaefer, Robert K.

Electricity: motive power systems

Positional servo systems

Vehicular guidance systems with single axis control

180 98, 246 41, G08D 100

Patent

active

040399168

ABSTRACT:
The device precludes a collision between a mobile object moving in a predetermined path and a second object in the same path. It comprises a sensor carried by the mobile object which cooperates with a fixed tape disposed along the path. The tape carries a track which has two conductive bands having a predetermined resistivity and the sensor comprises a series circuit having a source of voltage, a threshold circuit, and a wiper element in contact with the bands so as to connect them in series in the circuit.

REFERENCES:
patent: 2735302 (1956-02-01), Saylor
patent: 2968805 (1961-01-01), Sikorra
patent: 3217158 (1965-11-01), Ehrlich
patent: 3412391 (1968-11-01), Ward
patent: 3817344 (1974-06-01), Asano et al.

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