Patent ID: 7134676

Claim:
A self-leveling wheelbarrow comprising: a. a basin having a front end, a rear end, a left side and a right side; b. a wheel disposed beneath said basin near said front end; c. a rear mounting bracket secured near said rear end of said basin, said mounting bracket having a top end secured beneath said basin and a bottom end, said mounting bracket further having a vertical slot communicating therethrough; d. a leg assembly, said leg assembly comprising a pair of legs secured to one another by a centrally disposed plate, such that one of said pair of legs is positioned beneath said right side of said basin and the other one of said pair of legs is positioned beneath said left side of said basin, said plate further having a top edge; e. a pin extending from said plate, said pin slidably engaged within said slot to allow said leg assembly to move vertically within said slot and to rotate in a clockwise and counterclockwise direction about said pin; and f. a locking assembly secured beneath said basin in vertical alignment with said top edge of said leg assembly plate, said locking assembly configured to engage said top edge of said leg assembly plate when said leg assembly is in contact with a ground surface, said locking assembly comprising a first bar having an eccentrically fixed pivot end about which said bar may rotate, and a free end having a horizontal slot in alignment with said top edge of said leg assembly plate and configured to engage said top edge therein; whereby as said leg assembly contacts the underlying ground as the wheelbarrow is parked, said leg assembly rotates about said pin within said slot to accommodate the contour angle of the ground, sliding said top edge of said plate within said first bar slot in friction-fit contact therein, thereby locking said plate therein to prevent said leg assembly from rotating further about said pin, either in a clockwise direction of travel or a counterclockwise direction of travel.