Patent ID: 6957868

Claim:
A bottom dump trailer cart comprising: a) a cargo compartment defined by a front wall, paired sidewalls, a rear wall adapted to swing rearwardly and upwardly, and a floor having a pair of pivotably supported dumping panels adapted to swing downwardly to a dumping state which permits gravity discharge of the content of said cargo compartment, b) latching means for controllably preventing movement of said rear wall, c) at least one wheel positioned below each sidewall at a location that receives said panels in the dumping state, d) a tongue assembly extending forwardly of said front wall and having means for releasable attachment to a towing vehicle, and e) operating means which facilitate movement of said panels and latching means to produce said dumping state, and to produce a transport state wherein said panels are upwardly drawn to intercontacting abutment and said rear wall is secured in upright position by said latching means, f) said operating means comprising paired pulling cables attached to a lever member located forwardly of said front wall, and an expanding hinge located beneath each dumping panel and comprised of two elongated arms interconnected by pivot means whereby upward force applied to said pivot means by an associated pulling cable activated by said lever causes scissor-like lateral separation of said arms to force the associated dumping panel upwardly to produce said transport state.