Patent ID: 8615840

Claim:
A cleaning system for removing debris from and cleaning a substantially planar surface, the cleaning system comprising: a) a cleaning arm with opposed ends; b) a hinged subassembly disposed on each end of said cleaning arm; c) a track to engage and control the movement of said hinged subassemblies during operation, said track having a perimeter; d) a blade cleaner for cleaning said cleaning arm; e) said track having a track extension, said track extension extending outward of said perimeter of said track, transitioning inward of said perimeter of said track, and extending through said blade cleaner; f) wherein said cleaning arm moves across the substantially planar surface in a substantially orthogonal relationship to a longitudinal axis of the substantially planar surface for a substantial but not an entire period of operation; and g) wherein said track extension allows said cleaning arm to transfer from said substantially orthogonal relationship to a substantially horizontal relationship prior to entering said blade cleaner.