Abstract: In a vehicle body processing apparatus, a process tank assembly comprises a plurality of process tanks each having a treatment liquid therein. A carrier supports the body in road position above the tanks. A rotating means rotates the carrier and the body between an upright position above the tanks and an inverted totally submerged position within the tank and then rotates back to the upright position for drainage into the tank. The carrier is separated from the body, cleaned, and returned overhead to the loading end of the apparatus. The liquid-processed body is transported in an inverted position through an oven.

Abstract: A modular membrane box for use in an electrocoating system. The modular construction allows a number of cells to be assembled as a single unit as may be required by the tank dimensions. The anolyte supply and return lines, which are pressurized, and the membrane box assemblies and their controls are removably mounted on the tank. Provisions are made for easy and relatively inexpensive installation, inspection and maintenance of the membrane boxes, piping and controls.