A random orbital sander including a housing, a motor having a vertical axis in the housing, a pad coupled to the motor, a face on the pad extending substantially perpendicularly to the vertical axis, a shroud surrounding the pad, an opening in the shroud, and a dust discharge tube having an inner end...http://www.google.com/patents/US6257970?utm_source=gb-gplus-sharePatent US6257970 - Ergonomically friendly random orbital construction
