A card shuffling device includes a top surface, a card receiving area for receiving an initial set of playing cards, a randomizing or arranging system for the initial set of playing cards, a collection surface in a card collection area for receiving randomized playing cards, the collection surface receiving...http://www.google.ca/patents/US20050023752?utm_source=gb-gplus-sharePatent US20050023752 - Card shuffling apparatus with automatic card size calibration
