US PATENT SUBCLASS 340 / 910
.~.~ Central station responsive to traffic detectors

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


340 /   HD   COMMUNICATIONS: ELECTRICAL

907  DF  TRAFFIC CONTROL INDICATOR {8}
909  DF  .~ Plural intersections under common central station control {5}
910.~.~ Central station responsive to traffic detectors {1}
911  DF  .~.~.~> Central station controls offset (time between beginning of same phase at adjacent intersections)

DEFINITION

Classification: 340/910

Central station responsive to traffic detectors:

(under subclass 909) Subject matter including means responsive to vehicular presence, said means transmitting a presence signal to the central station.

SEE OR SEARCH THIS CLASS, SUBCLASS:

933, for vehicle detectors, per se.