Patent ID: 8397388

Claim:
A shaver comprising: at least two cutters each with a driving shaft; a head portion defining an opening with a ring gear extending around an inner periphery of the opening; a rotating structure received in the opening of the head portion, the rotating structure defining a plurality of cavities each with a base and a ceiling; a motor having a drive shaft with an upper and lower spur gear received in the opening of the head portion; at least two identical balanced equidistantly spaced gear chains, wherein at least one gear of each of the at least two gear chains is supported by a base of one of the plurality of cavities and at least another gear of each of the at least two gear chains is supported by the ceiling of the one of the plurality of cavities, each of the at least two gear chains is engaged with the lower spur gear and the ring gear, wherein rotation of the of the motor drive shaft rotates the rotating structure without vibration; at least two driving gears in another one of the plurality of cavities, each of the at least two driving gears engaging the upper spur gear and a respective one of the driving shafts, wherein the rotation of the motor drive shaft rotates the at least two cutters.