Retractable Rail Wheels for a Road/Rail Vehicle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Sep 18, 2014
app pub date -
Mar 14, 2013
filing date -
Mar 14, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A road/rail vehicle apparatus comprising a vehicle frame, and a rail axle with rail wheels rotatably attached to ends thereof. The rail axle is attached to the vehicle frame by a parallel link assembly. An airbag mounting plate is fixed to a link arm of the parallel link assembly, and an airbag is attached at a lower end thereof to the airbag mounting plate and attached at an upper end thereof to the vehicle frame. An airbag control is operative to vary air pressure inside the airbag, and as the airbag expands and contracts as the rail axle moves up and down the end plates of the airbag remain substantially parallel to each other increasing the range of travel and reducing lateral stresses on the airbag.
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