Positive-response transit detector for a given transit zone

Details Positive-response transit detector for a given transit zone Positive-response transit detector for a given transit zone

1976-10-05

1979-04-17

Kunin, Stephen G.

Railway switches and signals

Block-signal systems

Automatic

B61L 110, B61L 2900

Patent

active

041496906

ABSTRACT:
An electronic track zone detecting device for providing a signal representing location and direction of travel of a railway apparatus within the zone. The detecting device comprises two frames, of insulated open conductive loop structures, defining the extremities of the zone.

REFERENCES:
patent: 3529150 (1970-09-01), Coupin

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