Abstract: The method for placing a label on an item of packaging molded from natural fibers includes carrying out the following successive operations. The method includes turning over the packaging, with the opening directed downward, holding the packaging from the inside, positioning and holding the label above the packaging, driving the packaging in movement and bringing the outside of its bottom into contact with the label, stopping holding the label, indexing and securing the label in a spotwise fashion on the bottom, moving the packaging and positioning the bottom thereof next to means for activating a securing process, bringing the bottom and the label into contact with the activation means, activating the process of securing the label, and removing the labeled packaging.

Abstract: An electrostatic converter includes: a stator provided with at least one electrode; a rotor including at least one blade provided with a counter-electrode, the blade being movable in rotation around an axis of rotation designed to coincide with a direction of an air flow; the electrode or the counter-electrode being coated with a dielectric material able to be biased, the stator and rotor being configured to allow a first relative movement between the electrode and counter-electrode around the axis of rotation of the rotary shaft of the rotor so as to generate an electrostatic torque when the rotor performs a rotation. The stator and the rotor are configured to allow a second relative movement between the electrode and counter-electrode so as to modify the electrostatic torque generated.

Abstract: This electrostatic converter comprises a rotor comprising at least one blade designed to receive an air flow; a stator comprising at least one electrode; a flexible membrane fitted on the blade, and comprising a counter-electrode, the electrode or the counter-electrode being coated with a dielectric material suitable to be polarized; the flexible membrane describing a trajectory when the rotor performs a rotation; the flexible membrane being configured to come into sliding contact with the stator on a first part of the trajectory, and configured to be at a distance from the stator on a second part of the trajectory so as to form a variable electric capacitance variable suitable to induce an electric current.