US Patent 7988152 Playing card shuffler

An apparatus is for shuffling a plurality of playing cards used in gaming. The apparatus includes a card support adapted to support the unshuffled cards on-edge. An exciter is also included, and is adapted to impart vibrational action to the supported cards. Cards drop in a random fashion such as by controlling the relative position of the cards and passage through one or more card slots in a card rest. In at least some of the apparatus, a medial receiver is adapted to receive at least one card dropped from the card support and to retain the at least one received card to substantially block a card slot to prevent further cards from dropping. A positioner is preferably included to change a relative position of the unshuffled deck and card slots though which the cards drop.