Patent ID: 8757972

Claim:
A de-icing system for a counter rotating propeller system comprising: a first rotating hub and a second rotating hub that are counter rotating and that support a corresponding first plurality of propeller blades and a second plurality of propeller blades rotatable about a first axis, wherein each of the first plurality of propeller blades and the second plurality of propeller blades are rotatable about a second axis transverse to the first axis for adjusting a desired blade pitch; an actuator for driving rotation of one of the first plurality of propeller blades and the second plurality of propeller blades about the second axis; a transfer mechanism for translating rotation to another of the first plurality of propeller blades and the second plurality of propeller blades about the second axis, the transfer mechanism including a bearing assembly having a first part rotating with the first hub and a second part rotating with the second hub wherein the transfer mechanism includes a respective cam plate supporting one of the first plurality of propeller blades and the second plurality of propeller blades and a corresponding cam arm connecting each cam plate to the bearing assembly; a generator mounted within the bearing assembly for generating electric power; and a heating element mounted to at least one propeller blade of the first plurality of propeller blades and the second plurality of propeller blades supported on each of the first hub and the second hub receiving electric power from the generator.