COSMO ABBONDANTE
Engineering in Burlington, MA
License number
Massachusetts 13433
Issued Date
Aug 25, 1960
Expiration Date
Jun 30, 1990
Type
Mechanical Engineer
Address
Address
Burlington, MA 01803
Professional information
Vehicle Detection Apparatus
US Patent:
4013851, Mar 22, 1977
Filed:
Jul 25, 1975
Appl. No.:
5/598930
Inventors:
Cosmo Abbondante - Burlington MA
Assignee:
Bofors America, Inc. - Linden NJ
International Classification:
H01H 1316
US Classification:
200 86R
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.