Patent ID: 8720455

Claim:
An installation for the surface-treatment of one or more components immersed in a liquid bath, of a closed-circuit type, the installation comprising: a bath storage reservoir having the liquid bath; a treatment tank to receive the component that is to be treated; a support tool that carries the component and collaborates with the tank; pipes for conveying the bath from the reservoir to the tank and for emptying the bath from the tank to the reservoir, respectively, said bath conveying and emptying pipes being connected in an aligned fashion to respective upstream and downstream ends of the tank; and a motion instigating device that sets the bath in motion, wherein the tank is of cylindrical elongate shape with a longitudinal axis and a cross section that is substantially constant between the respectively upstream and downstream opposite transverse ends of the tank, said cross section being circular or of similar shape, or being partially circular with at least one flat part, and wherein the support tool includes a bowed plate having a thickness and circular profile which are substantially similar to a thickness and profile of the tank, the bowed plate being fixedly disposed in an aperture in the tank such that an internal profile of a side wall of the tank is continuous.