YOKE ASSEMBLY FOR USE IN A COLLAPSIBLE HANDRAIL ASSEMBLY AND A HANDRAIL ASSEMBLY INCORPORATING THE SAME
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Dec 27, 2013
filing date -
Nov 14, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A handrail assembly for a tank trailer and a yoke assembly forming a part thereof. Handrail assembly provides a safety device for an operator walking along a top wall of the tank trailer. The handrail assembly includes a top rail, a plurality of vertical members, a safety wire and, in most instances, a bottom rail. Each yoke assembly secures one of the top and bottom ends of the vertical members to either of the top and bottom rails or to a mounting bracket on the tank. Each yoke assembly includes a base member engaged partially in a bore of the vertical member, and a cradle member engaged with an exterior all of the top or bottom rails or mounting bracket. Base and cradle members are secured together by a pivot pin. Fluid-actuated cylinders extending between the vertical members and the tank move the handrail assembly between collapsed and expanded positions.
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