Patent ID: 9505555
Filing Date: 2016-11-29
CPC Classification: B65G

Claim Text:
1. A chassis stacker comprised of: a first and a second vertical storage rack, said first and second racks displaced from one another by a first distance wide enough to accommodate a trailer chassis and connected at a top end by a trolley rail support beam; a trolley positioned on the trolley rail support beam, said trolley having an elevation system capable of raising and lowering a first and a second stabilizing beam that are suspended from the trolley and guided in their vertical motion along the first and second vertical storage racks by low-friction, storage-rack contact members attached at respective first and second ends of each of the stabilizing beams, said low-friction, storage-rack contact members in contact with an inner surface of the respective first and second vertical storage racks as the low-friction, storage-rack contact members vertically move along the first and second vertical storage racks; a first and a second stabilizing-beam trolley attached to the, respective, first and second stabilizing beams such that the first and second stabilizing-beam trolleys move laterally along the respective first and second stabilizing beams; and a spreader extending between and attached to the first and the second stabilizing-beam trolleys such that the first and second stabilizing-beam trolleys move the spreader laterally between the first and second vertical storage racks, said spreader containing a chassis-clamping mechanism that forms a downward-facing portion of the spreader and the chassis-clamping mechanism is disposed below the first and second stabilizing beams, wherein the first and second stabilizing beams are above the trailer chassis when the chassis-clamping mechanism has engaged the trailer chassis.