Traffic control element

Details Traffic control element Traffic control element

1986-02-03

1987-06-23

Frankfort, Charles

Signals and indicators

Street traffic

Portable

340114R, 116202, G08B 2300, E01F 900, E04H 1700

Patent

active

046744312

ABSTRACT:
A traffic control drum is disclosed as an upright member having upper and lower ends, a support base adapted to rest on a support surface and an operator releasable mechanism for attaching the lower end of the member to the support base, so that the member is oriented in an upright relation to the support surface. The support base has an element exposed to be stepped on by the operator to hold the support base still on the support surface. The member has a mechanism disposed to be manually grasped by the operator, whereby the operator may urge the member away from the support base, while the operator holds the support base still with respect to the support surface to thereby effect release of the upright member from the support base.

REFERENCES:
patent: D215345 (1969-09-01), Mangold
patent: 3618556 (1971-11-01), Dittrich
patent: 3952690 (1976-04-01), Rizzo
patent: 4083033 (1978-04-01), Kulp
patent: 4475101 (1984-10-01), Kulp

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