Patent ID: 7673540
Filing Date: 2010-03-09
Classification: F16H,Y10T

Abstract:
1. A transmission apparatus for containing at least a portion of a drive shaft, the transmission apparatus comprising: (a) a housing having a drive shaft channel for containing at least a portion of a drive shaft for transmitting rotational movement of a motor to a driven element, the drive shaft channel having an inner wall having a channel diameter greater than a diameter of the drive shaft; and (b) a debris pocket in communication with the drive shaft channel and adapted for collecting debris from the drive shaft channel, the debris pocket formed by and between at least two spaced-apart radial ribs that are peripherally disposed at least partially along and extend inwardly from the inner wall of the drive shaft channel between the motor and the driven element, the radial ribs extending toward a center axis of the drive shaft channel and forming opposing openings along the center axis for a drive shaft to pass through the openings, the opening each having a diameter less than the channel diameter.