Patent ID: 8668619

Claim:
A rotary unit, comprising at least a first rotational component that comprises at least first and second surfaces, wherein the first surface comprises at least one sun gear component and the second surface comprises at least one ring gear component, which sun and ring gear components are substantially fixed relative to one another, wherein the sun gear component of the first rotational component is configured to operably engage one or more planetary gear components that are configured to operably engage one or more ring gear components of at least a second rotational component when the first rotational component is disposed proximal to the second rotational component such that when the first rotational component rotates in a first direction, the second rotational component rotates in a second direction, wherein the ring gear component of the first rotational component is configured to operably engage one or more planetary gear components that are configured to operably engage one or more sun gear components of at least a third rotational component when the first rotational component is disposed proximal to the third rotational component such that when the first rotational component rotates in the first direction, the third rotational component rotates in the second direction, wherein one or more ear structures comprise the planetary gear components, which planetary gear components are configured to rotate in substantially fixed positions relative to one another, and wherein at least one radial outer surface of the first rotational component comprises at least one implement.