Communications: electrical – Traffic control indicator – Portable
Patent
1993-12-22
1995-12-12
Crosland, Donnie L.
Communications: electrical
Traffic control indicator
Portable
340471, 340473, 116 63P, 40590, 40610, G08G 1095
Patent
active
054753864
ABSTRACT:
A trailer mounted apparatus for use along roadways and convertible between a folded-transport position and an erected-operational position. When in the operating position, one signal unit is elevated on the side of the roadway, and another signal unit is elevated over a traffic lane at sufficient height so as to not pose a hazard to traffic. The apparatus has a fixed upright mast with a hinged mast extension which angles upwardly and laterally away from the top of the upright mast. A foldable arm with inner and outer arm portions is hinged to the top portion of the mast extension. When in the erected position alongside a roadway, the mast extension elevates the foldable arm which extends from the top portion of the mast extension across the trailer and out and over the traffic lane. One signal unit is attached to the outer end of the foldable arm and the other unit is attached to the mast extension. In the transport position the mast extension, the foldable arm, and the signal units lie horizontally and compactly folded within the confines of the trailer. Hydraulic cylinders are utilized to raise and lower the mast extension with respect to the mast, and the foldable arm with respect to the mast extension. A rigid link unfolds and folds the foldable arm as the foldable arm is raised and lowered.
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Product Brochure, 2 pp. Bemis . . . the name in Flashing Arrows! Dec. 1993.
Product Brochure, 2 pp. Traffic Control Products from Signal Traffic Controller, Feb. 1981.
ADDCO Manufacturing, Inc.
Crosland Donnie L.
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