Abstract: A door for allowing access to an interior space of a housing, one end of the housing is sealed with a cover having a plurality of cover components, the door comprising: a sun gear comprising a rotational axis, the sun gear is attached to the housing; a ring having a central axis coaxially disposed with the rotational axis of the sun gear; and a plurality of planetary gears evenly distributed about the central axis of the ring, each the planetary gear comprising a rotational axis and rotationally coupled to the ring and the sun gear, wherein the rotational axis of each the planetary gear is disposed parallel to the central axis of the ring, wherein each of the cover components is configured to be attached to one of the plurality of planetary gears and when the ring is rotated with respect to the housing, the plurality of cover components separate.

Abstract: A door for allowing access to an interior space of a housing, one end of the housing is sealed with a cover having a plurality of cover components, the door comprising: a sun gear comprising a rotational axis, the sun gear is attached to the housing; a ring having a central axis coaxially disposed with the rotational axis of the sun gear; and a plurality of planetary gears evenly distributed about the central axis of the ring, each the planetary gear comprising a rotational axis and rotationally coupled to the ring and the sun gear, wherein the rotational axis of each the planetary gear is disposed parallel to the central axis of the ring, wherein each of the cover components is configured to be attached to one of the plurality of planetary gears and when the ring is rotated with respect to the housing, the plurality of cover components separate.