Patent ID: 8789638

Claim:
A wirelessly controllable, electrically driven, foldable four wheeled, multi-portioned frame arrangement, articulable into and from a load carryable cart assembly system, the cart assembly system carryable by a human when the cart assembly is in a folded configuration the cart assembly comprising: an elongated lower base frame arrangement having a freewheeling pair of wheels on a first half-end thereof, and a pair of individually empowered individually computer controlled forward and reversibly rotable drive wheels on a second half-end thereof; a plurality of pivotable frame portions consisting of a “U” shaped upper handle and a pair of parallel mid-frame members extending upwardly from a pair of upwardly extending curved side bar members comprising the second half end, and wherein the first half end and the second half end of the lower base frame arrangement is foldable about a generally centrally located collapse pivot arrangement therebetween, and wherein the plurality of pivotable frame portions are pivotally connected to and foldable about one another and are hingedly attached to a transversely arranged, carry-handle-pivot-axis immovably arranged between the upper ends of the pair of curved side bar members which extend immovably upwardly from the second half end of the lower base frame arrangement, to permit the cart assembly to be folded into a compact hand-carryable configuration, carryable by the intermediately located transversely -disposed immovable carry-handle pivot axis; and wherein the cart assembly system includes a wireless user-tracking arrangement thereon, and wherein the wireless user-tracking arrangement has a sensor on an end of each of a pair of “L” shaped brackets, each attached to one of the parallel mid frame members, and which sensors send and receive signals so as to electronically instruct an onboard central processing unit computer to individually control the individually empowered drive wheels as to both a common or an opposite rotational direction and rotational speed from one another, to permit the cart assembly to track, sharply turn, and otherwise promptly follow movement or instructions of a system's user.