Traffic signalling post

Signals and indicators – Street traffic – Portable

Patent

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Details

40608, 248530, 404 10, E01F 901

Patent

active

050903489

ABSTRACT:
The invention is a traffic signalling post which comprises a flexible rod member, a rigid shaft coaxially secured at one end to the rod member, an anchor bore member adapted to house the shaft for maintaining the latter in a vertical position. The bore member has a perforated elastic diaphragm for peripherally sealing the shaft at a location adjacent the rod member when the latter sits in the bore member. The diaphragm is particularly characterized by a pair of rectilinear lips extending upwardly and adapted to be depressed downwardly with the introduction of the shaft in the anchor bore member and to be raised upwardly by the retraction of the shaft from the anchor bore member.

REFERENCES:
patent: 3225734 (1965-12-01), Bule
patent: 4343567 (1982-08-01), Sarver et al.
patent: 4486117 (1984-12-01), Blau
patent: 4977851 (1990-12-01), Anderson
patent: 5029783 (1991-07-01), Alvarez

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