Movable or removable closures – With traffic director or controller; e.g. – one-way
Patent
1982-06-30
1984-07-03
Kannan, Philip C.
Movable or removable closures
With traffic director or controller; e.g., one-way
49141, E01F 1300
Patent
active
044571054
ABSTRACT:
An improved barrier assembly for selectively preventing and allowing travel along a path includes a frame assembly situated beside the path, at least one elongated barrier arm having a blocking position projecting laterally from the frame assembly across the path for preventing travel past the barrier arm along the path when the barrier arm is in the blocking position, and a connecting assembly connecting the barrier arm to the frame assembly for swinging movement with respect thereto about a substantially horizontal axis between the blocking position extending across the path and a non-blocking position wherein the barrier arm extends substantially vertically along the frame assembly to be situated with the latter beside the path to permit travel therealong. According to the invention the frame assembly comprises a channel enclosure to which a barrier arm is connected by the connecting means, the channel enclosure being constituted by a member having a substantially C-shaped cross-section. The particular configuration of the channel enclosure constituting at least a part of the frame means allows the barrier assembly to have a variety of configurations and be mounted in a variety of different manners as well as provided with automatic drive apparatus and safety release arrangements. Moreover, by virtue of the use of the channel enclosure, the barrier assembly will have a slim design when the arm is in the non-blocking position whereby less space will be occupied thereby than in conventional arrangements.
REFERENCES:
patent: 2877284 (1959-03-01), Schultz
patent: 2927214 (1960-03-01), Hoffman
patent: 3394498 (1968-07-01), Reinitz et al.
patent: 3681751 (1972-08-01), Le Barre
patent: 3781549 (1973-12-01), Fletcher et al.
patent: 3849936 (1974-11-01), Geraci
patent: 3968596 (1976-07-01), Danin
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