I have been thinking that a possible configuration for Mr. Figuera 1902 motionless generator http://www.alpoma.com/figuera/docums/30378.pdf is based on exciting the coils with a two-phase AC current in order to create a rotating magnetic field in the generator (as Tesla´s egg of Columbus). In this case the 1902 generator would be also composed by two unphased signals delayed 90º as Mr. Figuera did it in his 1908 generator.

I would like you guys have a look to D'Angelo patent www.rexresearch.com/angelo/us2021177.pdf. In figure 15 (XV in romans numbers) it is represented a generator very similar to Figuera´s 1902 generator. D'Angelo excited his generator with the unphased signals represented in figures 5b and 5c  (V-b  and V-c in romans)

More info about D'Angelo: http://www.rexresearch.com/angelo/angelo.htm

Please comment your opinion about this patent. Do you see any paralellism between Figuera´s patent and D'Angelo´s patent?

Using his recent knowledge of the operation of synchronous generators and the EMF pointing system in the phase wire, having studied the design of Antonio D'Angelo's motor-generator, he hypothesized how this system actually works. We have four rotor magnetic poles excited by an electromagnet from a DC source (the diagram shows a battery, which is also the current source for the driven stator electromagnets). We have eight stator pole rods, with one rotor pole overlapping two stator pole rods. Each rod has an excitation solenoid winding, controlled through a commutator brush assembly on the rotor shaft. The device has two generator phases, which are placed between the stator rods so that active zones are formed to inject charge into the focus of the varying magnetic flux. What this means can be found in my publications: "The Invention of an Electromagnetic Generator" and "A Transformer with a Mystery", in which I talk about a system for inducing EMF in a conductor that does not cross (cut) magnetic lines of force.
In the figure I have shown the moment of maximum formation of magnetic ring fluxes (Φ1, Φ2, Φ3, Φ4) in the rotor/stator of the system, focusing on the figure in the patent. The rotor rotates clockwise due to the corresponding excitation of four electromagnets (highlighted in yellow in the figure). The other four electromagnets are switched off, which, by design, is to provide for the retraction of the rotor pole into the zone of the active electromagnet switched on in the mode of the corresponding active stator pole. To accomplish this action, the clearance zones of the rotor poles must not be equal. In the zone of attraction - the minimum clearance, in the zone of switching off of the rod electromagnet - the maximum permissible clearance. Or in the body of the plane of the rotor pole. In this case, a small selection of core material is made. Otherwise, this position is ideal for magnetic locking. Turning the second electromagnet on repulsion will cause the magnetic circuit ( Φ1 - 1 window, Φ2 - 3 octo, Φ3 - 5 window, Φ4 - 7 window) to collapse, which should form the EMF in the generator phases. If we consider the stacking of the phase wires, it is under this condition that the function allows to induce EMF in the phase wire (for this position the active phase is highlighted in red color) and the rotor rotation proper. When the rotor rotates and the pole tip reaches the center zones of the stator active electromagnet and the rotor pole, the active electromagnet is switched off and the inactive electromagnet is switched on, the pole being activated to attract the rotor plus. Thus, when the rotor rotates, the next closed magnetic fluxes will already be formed to establish the second phase.   
Thus, we get two independent generator phases and a rotor rotation and excitation system.