A disc-type coin processing device for processing a plurality of coins is disclosed according to one embodiment of the present invention. The coin processing device includes a rotatable disc that imparts motion to the plurality of coins and a stationary head, which has a lower surface generally parallel...http://www.google.de/patents/US20040092222?utm_source=gb-gplus-sharePatent US20040092222 - Stationary head for a disc-type coin processing device having a solid lubricant disposed thereon
