Vehicle detection apparatus

Details Vehicle detection apparatus Vehicle detection apparatus

1975-07-25

1977-03-22

Smith, Jr., David

Electricity: circuit makers and breakers

Weight

Treads

H01H 1316

Patent

active

040138518

ABSTRACT:
Vehicle-detection apparatus, for installation at highway toll-booth, parking-area, and like sites, includes elongated thin-strip electrical switching sensors disposed near a road surface and oriented transversely to traffic directions, for responses to tire-transmitted loadings, the switching sensors each being in the form of a pair of narrow highly-elongated flat conductive strips, at least the upper one of which is springy and both of which are cartridged in a minutely-spaced substantially parallel relationship within a shallow open-topped flat-bottomed rigid channel member, the minute spacing being maintained by plastic insulating tape sandwiched between the strips only near their edges; the plural sensors are cast into a tough but somewhat flexible plastic mass in side-by-side relationship atop a stiff backing plate, with the upper strip being parted from the mass by a thin plastic sheathing, and the top surface of the cast assembly is rendered non-skidding by way of abrasive particle embedments.

REFERENCES:
patent: 2165227 (1939-07-01), Cooper
patent: 2761928 (1956-09-01), Cooper et al.
patent: 2796488 (1957-06-01), Cooper
patent: 2896042 (1959-07-01), Koenig

Affiliated with

Also associated with

Rating

Vehicle detection apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vehicle detection apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle detection apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1957650