Patent ID: 7290645
Filing Date: 2007-11-06
Classification: G07D

Abstract:
1. A coin cleaning device for separating foreign objects from a mass of coins inserted into the device, said device comprising coin receiving means into which a batch of coins may be inserted, an elongate tray assembly, an inlet end of the tray assembly being so arranged as to receive coins from said coin receiving means, a vibration means connected to said tray assembly and so arranged to cause coins on the tray assembly to travel along the tray assembly in the direction away from said inlet end, the tray assembly comprising an upper shelf and a lower shelf which are substantially horizontal, said upper shelf comprising a first upper shelf portion and a second upper shelf portion, said first upper shelf portion being disposed towards said inlet end, and said second upper shelf portion being disposed away from said inlet end, said first upper shelf portion being perforated by apertures of transverse dimensions smaller than a predetermined minimum diameter of coins to be handled by the device, whereby some foreign matter of transverse dimensions smaller than said perforations can fall through said perforations of said first upper shelf portion, said second upper shelf portion being formed with coin receiving apertures of transverse dimensions larger than a predetermined maximum diameter of coins to be handled by the device, whereby coins which travel from on top of said first upper shelf portion to said second upper shelf portion fall through said coin receiving apertures, said lower shelf extending beneath said second upper shelf portion and being provided with perforations of transverse dimensions smaller than said pre-determined minimum diameter of coins whereby any foreign objects which are associated with coins that tumble through said apertures of said second upper shelf portion can pass through said lower shelf, as the coins are conveyed along said lower shelf, a downstream end of said lower shelf, and a coin outlet positioned to receive coins from said downstream end of said lower shelf.