Modular, non-metallic, hard shell, predimensioned, preformed and

Details Modular, non-metallic, hard shell, predimensioned, preformed and Modular, non-metallic, hard shell, predimensioned, preformed and

1987-07-13

1990-07-03

Orsino, Joseph A.

Communications: electrical

Vehicle detectors

174 71R, 174 92, 285302, 340941, G08G 101

Patent

active

049395122

ABSTRACT:
An induction loop vehicle detection system and method of making and installing such a system are disclosed wherein the conduit sections containing the induction loop are preformed and prewired integrally with all interconnects by using removable expansion joints to assemble sections of prewired and sealed conduit in any desired configuration. The expansion joints can be removed after assembly to enable the induction loop to be folded down for shipment. The expansion joints also enable longitudinal displacement of the induction loop conduit due to thermal differential expansion during installation and during extreme changes in temperature over the lifetime of the system, thereby preserving the integrity of the roadway and fault free operation of the induction loop. The wires forming the induction loop are completely sealed within the conduit with an asphalt rubber material thereby precluding any moisture penetration. The induction loop vehicle detector is installed by a method of dry routing of pavement which eliminates labor intensive slurry clean-up. The conduit is sealed in the routed slot in a roadway with a pressure withstanding asphalt rubber material which tenaciously adheres to the side surfaces of the routed slot.

REFERENCES:
patent: 2095061 (1937-10-01), Geyer
patent: 2409283 (1946-10-01), Hudson
patent: 2441554 (1948-05-01), Barker
patent: 3034808 (1962-05-01), Poundstone
patent: 3087747 (1963-04-01), Novotny
patent: 3151211 (1964-09-01), Reid et al.
patent: 3173989 (1965-03-01), Neaderland
patent: 3350500 (1967-10-01), Ziegler
patent: 3711633 (1973-01-01), Ghirardi et al.
patent: 3714626 (1973-01-01), Koerner
patent: 3794054 (1974-02-01), Watts
patent: 3836702 (1974-09-01), Plummer
patent: 4204085 (1980-05-01), Chapman et al.
patent: 4294475 (1981-10-01), Kanai et al.
patent: 4358634 (1982-11-01), Dienes
patent: 4374596 (1983-02-01), Schlemmer et al.
patent: 4396656 (1983-08-01), Still et al.
patent: 4449844 (1984-05-01), Larsen
patent: 4514241 (1985-04-01), Maukola
"Inductive Loops", Equipment Development & Test Report No. 7700-9, Aug. 1977, Loren F. DeLand, U.S. Dept. of Agriculture.

Affiliated with

Also associated with

Rating

Modular, non-metallic, hard shell, predimensioned, preformed and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modular, non-metallic, hard shell, predimensioned, preformed and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular, non-metallic, hard shell, predimensioned, preformed and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1893819