Abstract: The purpose of the invention is a device that compacts thin sheets of thermoplastic material in order to facilitate their subsequent recycling by means of a suction air current combined with another impulsion current by means of heated air. The device includes an axial fan (1), which is coupled in the lower part to an essentially prismatic structure (10), an inlet nozzle (2) placed in the lower part of the prismatic structure (10); a heated mould (3) housed in the intermediate part of the prismatic structure (10) as a continuation from the inlet nozzle (2), where the heated mould (3) is provided with a plurality of slots that allow the passing of the suction air current; a guiding conduit between the inlet nozzle (2) and the heated mould (3); and a slot (4) housed between the heated mould (3) and the fan (1).

Abstract: A storage system for storing energy useful in starting and regulating electrical systems, that includes a transmission system to transmit mechanical energy between an electric machine and an energy storage device having at least one coil spring arranged in a rotating shaft; and a braking and holding element connected to the shaft to alternately block the spring or keep it in a released state, wherein the electric machine acts like a motor turning the rotating shaft in a first direction to tense the spring to store mechanical energy, and the rotation of the shaft in the opposite direction releases the mechanical energy stored in the spring and the transmission system turns the electric machine to operate the electric machine like an electric generator.

Abstract: The elastodynamic energy accumulator-regulator comprises a sheet (1) that is wound or capable of being wound in radioida spiral form with increasing or decreasing curvature along the length of the spiral, capable of absorbing energy at variable torque and supply a practically constant torque in broad working areas The laminate or set of sheets that are wound or capable of being wound about themselves as a spring has variable thickness and/or width and/or reinforcement along its length, and is held at both ends. The laminate or set of sheets is made of composite materials with polymer matrix and fiber reinforcement This elastodynamic energy accumulator-regulator has application as an energy accumulator or regulator in many applications such as wind energy production and other renewable energies, applications in transport, applications in uninterruptible power supply systems, applications in electric network regulation, etc.