Patent ID: 8827855

Claim:
A coaxially arranged reduction gear assembly, comprising: a stationary gear section having a quantity of stationary gear teeth disposed in a spatial arrangement about an interior circumferential surface forming a stationary gear having an internal gear configuration, wherein said stationary gear section is retained in a fixed position; a input shaft and planetary carrier combination comprising an input shaft having a central shaft rotational axis and a planetary gear cam having a planetary gear rotational axis, wherein said planetary gear rotational axis and central shaft rotational axis offset from one another by a planetary gear rotational offset; a planetary gear comprising a planet wheel gear first stage having a quantity of planet wheel gear first stage teeth disposed in a spatial arrangement about a peripheral surface forming a first stage gear having an external gear configuration and a planet wheel gear second stage having a quantity of planet wheel gear second stage teeth disposed in a spatial arrangement about a peripheral surface forming a second stage gear having an external gear configuration, wherein said planet wheel gear first stage and said planet wheel gear second stage are concentric with one another and said first stage quantity of teeth differs from said second stage quantity of teeth; and an output rotational gear section having a quantity of output rotational gear teeth disposed in a spatial arrangement about an interior circumferential surface forming an output rotational gear having an internal gear configuration; wherein said planetary gear is rotationally assembled to said planetary gear cam forming a planetary gear subassembly; the first stage external gear is positioned in engagement with said internal stationary gear and the second stage external gear is positioned in engagement with said output rotational gear.