Plastic barricade panel

Details Plastic barricade panel Plastic barricade panel

1974-03-01

1976-07-27

Queisser, Richard C.

Signals and indicators

Street traffic

Portable

40125H, E01F 910, G09F 712

Patent

active

039713318

ABSTRACT:
A movable barricade for use at construction sites having supporting legs connected by rails and further having at least one of its rails formed by a panel of thermoplastic material having a flame-oxidized forward surface to which pressure sensitive adhesive material is attached and arranged for delivering a warning message, the back surface of the panel having protruding ribs formed of the same piece of material as the remainder of the panel.

REFERENCES:
patent: 2454648 (1948-11-01), Green
patent: 2648097 (1953-08-01), Kritchever
patent: 2802443 (1957-08-01), Hanson
patent: 3153872 (1964-10-01), Walter
patent: 3490749 (1970-01-01), Anderson
patent: 3593681 (1971-07-01), Sernovitz
patent: 3766881 (1973-10-01), Ward
patent: 3798814 (1974-03-01), Harmon

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