Patent ID: 7964069

Claim:
A device for galvanic coating of a piston, the piston having a piston crown, skirt elements formed onto the latter, and two pin bores, the device comprising: a pot-shaped interior for accommodating the piston and an electrolyte fluid; a plate-shaped holder device for fixing the piston in place, said holder device being disposed in a bottom of the interior; a cover attached to radially outer edges of the holder device, said cover being structured like a shutter and disposed close to the piston, and leaving only surfaces of the piston that are to be coated uncovered; a first electrical contact that is connected with an anode to be immersed into an electrolyte fluid, and with a plus pole of a direct voltage source; and a second electrical contact that is connected with the piston and with a minus pole of the direct voltage source; and a centering device shaped in oblong form and disposed in a center of the holder device, said centering device having a longitudinal axis that lies parallel to a plane of the holder device, said centering device having a length corresponding to a radial inside diameter of the piston to be coated in a region of the skirt elements, so that the piston to be coated can be pushed onto the centering device by way of a side that faces away from the piston crown and so that the longitudinal axis of the centering device lies perpendicular to an axis of the pin bores and perpendicular to a piston axis of the piston to be coated.