US Patent 11827136 Packing crate device for tractor trailers

Multiple actuation devices may be coupled to a shipping crate. A first actuation device may be coupled to a first end of the shipping crate and a second actuation device may be coupled to a second end of the shipping crate. The actuation devices include various telescopic columns, by which the shipping crate may be raised and lowered. Some of the columns include a caster for rolling the shipping crate. Other columns include a drive unit for driving the shipping crate. By utilizing the actuation devices, the shipping crate may be loaded and unloaded from a trailer without the need for a forklift.