Retro-reflecting globules for road surface marking

Details Retro-reflecting globules for road surface marking Retro-reflecting globules for road surface marking

1981-05-19

1983-10-25

Byers, Jr., Nile C.

Road structure, process, or apparatus

Traffic director

Vibration inducing member

350105, E01F 904

Patent

active

044115539

ABSTRACT:
Improved retro reflecting globules of vertically asymmetrical configuration and of geometry such as to provide at least another asymmetry in plan view, to provide an optimum light response to light beams impinging under differing zenithal and azimuthal angles.

REFERENCES:
patent: 1789525 (1931-01-01), Hoff
patent: 3114597 (1963-12-01), Lee
patent: 3240132 (1966-03-01), Wiswell
patent: 3277800 (1966-10-01), Wiswell
patent: 3575092 (1971-04-01), Freeman
patent: 3964821 (1976-06-01), Eigenman
patent: 4049337 (1977-09-01), Eigenman
patent: 4069281 (1978-01-01), Eigenman
patent: 4072403 (1978-02-01), Eigenman

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