Vertically actuated rail guide wheels
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 26, 1997
Grant Date -
N/A
app pub date -
Oct 27, 1995
filing date -
Oct 27, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rail guide wheel arrangement provides movement of rail wheels between rail and road positions with a compact zone of movement such that no open zone is required in front or behind the apparatus to accommodate such movement. The movement of rail wheels and a wheel support has no component of movement in the rail direction. Side shifting of the guide wheel unit can be controlled by control arrangement using a single joystick to control two actuators. A suspension is provided using two spring cells. An axle may include cavities to receive the spring cells when the apparatus is in its road position. A locking arrangement uses pilot operated check valves and secondary mechanical locks.
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