Communications: electrical – Vehicle detectors
Patent
1992-09-11
1998-09-15
Hofsass, Jeffery
Communications: electrical
Vehicle detectors
340941, 340596, 340665, 340666, 310338, 174102R, 29828, G08G 101
Patent
active
058085629
ABSTRACT:
A vehicle detector for installation on the surface of a multi-lane road, comprising at least a coaxial detector cable provided with a central conductor, a metallic cladding and a filler material between the cladding and the conductor. The coaxial detector cable comprises at least one region which is referred to as the active region and in which the filler material is mechanoelectric, and also comprises at least one adjoining region which is referred to as a neutral region and in which the filler material is neither mechanoelectric nor potentially mechanoelectric.
REFERENCES:
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patent: 4227111 (1980-10-01), Cross et al.
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patent: 4495434 (1985-01-01), Diepers et al.
patent: 4901334 (1990-02-01), Gibson
patent: 5008666 (1991-04-01), Gebert et al.
patent: 5126615 (1992-06-01), Takeuchi et al.
patent: 5142187 (1992-08-01), Saito et al.
Bailleul Gilles
Coville Patrick
Botjer William L.
Hofsass Jeffery
Miller Paul
Pope Daryl C.
Spain Norman N.
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