Glass bead application sensor system

Road structure – process – or apparatus – Process

Patent

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Details

404 94, 156560, E01C 2316

Patent

active

052755045

ABSTRACT:
A device and method for marking a horizontal surface, such as a roadway, and applying reflective particles to the marked surface. The device monitors the flow of the reflective particles and warns an operator when the flow is interrupted. This device prevents remarking of the surface caused by interruptions in the flow of particles.

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patent: 4462547 (1984-07-01), Metz
patent: 4856931 (1989-08-01), Bollag
patent: 4870806 (1989-10-01), Sprenger

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