Patent ID: 7942431

Claim:
A wheeled chassis assembly for a vat having at the bottom end thereof a depending foot rim and an annular corrugation above said rim, said assembly comprising: (a) a plurality of wheel brackets, each having a wheel secured to a wheel mount provided on the wheel bracket for pivoting movement about a vertical axes, with each wheel bracket (1) having an engagement surface pressed against the foot rim and the corrugation on an outside surface of the vat and (2) having formed therein below its engagement surface an annular groove for the reception of foot rim, and (b) a counter-piece disposed, on an inside surface of the vat, opposite each wheel bracket for pressing the engagement surface against the outside surface of the vat; wherein the corrugation projects outwardly from the bottom end of the vat above foot rim; wherein the engagement surface of the wheel bracket is formed with an inclined curved portion for engaging the corrugation and to conform with the configuration thereof; wherein the counter-piece is threadingly coupled to the wheel bracket; wherein the engagement surface of the wheel bracket is curved to conform with outside surface of vat; and wherein the engagement surface of the counter-piece is curved to conform with the inside surface of foot rim.