Apparatus for electrocoating using an auxiliary electrode

Claim 1

APPARATUS FOR COATING ELECTRICALLY CONDUCTIVE OBJECTS COMPRISING IN COMBINATION AN ELECTRICALLY CONDUCTIVE COATING TANK ADAPTED TO RETAIN AN AQUEOUS COATING BATH IN WHICH ORGANIC FILM-FORMING MATERIALS ARE DISPERSED, SAID TANK COMPRISING A FIRST ELECTRODE, A SECOND ELECTRODE OF THE SAME POLARITY AS SAID FIRST ELECTRODE EXTENDING LONGITUDINALLY OF SAID TANK SO AS TO BE POSITIONED BENEATH THE SURFACE OF SAID BATH WHEN SAID TANK IS CHARGED WITH SAID BATH, TRANSFER MEANS FOR TRANSPORTING SAID OBJECTS THROUGH SAID BATH AND UNDER SAID SECOND ELECTRODE, ELECTRICAL MEANS FOR PROVIDING A UNIDIRECTIONAL FLOW OF ELECTRICAL ENERGY BETWEEN EACH OBJECT AND SAID ELECTRODES WHEN SAID BATH IS IN SAID TANK AND SAID OBJECT IS IN CONTACT WITH SAID BATH, SAID ELECTRICAL MEANS INCLUDING A CONDUCTOR IN ELECTRICAL CONNECTION WITH SAID OBJECT AND MEANS FOR IMPARTING AN ELECTRICAL CHARGE TO SAID OBJECT THROUGH SAID CONDUCTOR OF OPPOSTIE POLARITY WITH RESPECT TO SAID ELECTRODES, AND MEANS ASSOCIATED WITH SAID CONDUCTOR AND ADAPTED TO BE ACTUATED BY MOVEMENT OF SAID OBJECT WITH RESPECT TO SAID BATH WHEREBY SAID FLOW OF ELECTRICAL ENERGY IS INITIATED.