Patent ID: 8215240

Claim:
A bimodal container chassis for supporting a container during roadway and railway transit, the chassis comprising: a mainframe having first and second ends and top and bottom edges, the bottom edge positioned at an angle from horizontal; a running gear attachment connected to the mainframe and moveable along the bottom edge in first and second directions, wherein the first direction is upward and toward the first end and the second direction is downward and toward the second end, wherein the running gear attachment comprises a wheel attached to an axle, a tire arranged around the wheel, and a brake, wherein the running gear attachment moves in the first direction to an over-the-rail position for rail transit and in the second direction to an over-the-road position for road transit; a locking-pin device configured to automatically maintain the brake in an engaged position when the running gear is in the over-the-rail position, wherein the locking-pin device further comprises: a valve located at the second end of the mainframe and configured to engage the brake when the chassis connects to a bogie, and a push-button located in a receiver box that is incorporated in the second end of the mainframe, the push-button configured to activate the valve when contacted by a tongue of the bogie.