Patent ID: 7273114

Claim:
A tractor-trailer combination comprising a tractor vehicle and a trailer vehicle, wherein: a) the trailer vehicle, having a length and a front end, comprises a plurality of reinforcement rods extending along the length of the trailer vehicle and protruding from the front end of the trailer vehicle as extensions of said reinforcement rods; b) the tractor vehicle, having a length, a rear end, and a front end, comprises the same plurality of receptor channels as the plurality of reinforcement rods; c) the receptor channels are positioned such that the extensions are able to slide into the corresponding receptor channels so as to join the tractor and trailer vehicles, thereby enabling the tractor-trailer combination to act as a single unitary vehicle; d) the receptor channels extend from the rear end of the tractor vehicle to the front end of the tractor vehicle; e) the extensions have a length greater than the length of the tractor vehicle, such that when the tractor and trailer vehicles are joined, the extensions protrude from the front end of the tractor vehicle through the receptor channels; and, f) the extensions and receptor channels comprise matching apertures or locking mechanisms that permit the extensions to be securely attached to the receptor channels.