Playing card shuffler

• US 7,988,152 B2
• Filed: 04/07/2009
• Issued: 08/02/2011
• Est. Priority Date: 04/07/2009
• Status: Active Grant

• Current Assignee: Sg Gaming, Inc. (Scientific Games Corporation)
• Original Assignee: SHFL Entertainment Incorporated (Scientific Games Corporation)
• Inventors: Sines, Randy D.
• Primary Examiner(s): LAYNO, BENJAMIN
• Application Number:
  US12/384,732
• Publication Number:
  US 20100252992A1
• Time in Patent Office: 847 Days
• Field of Search: 273/149.R, 273/149.P, 463/22
• US Class Current: 273/149.00R
• CPC Class Codes: A63F 1/12 Card shufflers
• CPC Class Codes: A63F 1/14 Card dealers

Abstract

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.

Claims

1. An apparatus for randomly shuffling a plurality of playing cards used in gaming, comprising:

a card rest having a top surface adapted to support the cards in their unshuffled state;

a card aperture formed in the card rest and adapted to allow passage therethrough of only one card at a time by means of gravity;

an exciter adapted to impact vibratory action in the supported cards;

a card receiver comprising at least one guide portion that defines a card space adapted to temporarily receive the playing card dropped through the card aperture prior to its delivery to a card collector as a randomly shuffled card, wherein an upper edge of the received card within the card receiver is substantially flush with the card rest top surface to substantially block the card aperture; and

a positioner adapted to randomly reposition the unshuffled cards relative to the card aperture.

2. The apparatus according to claim 1, further comprising a card stop that further defines the card space, and which is adapted to support the received card relative to the card aperture.

3. The apparatus according to claim 1, wherein the card receiver is adapted to release the received card to substantially unblock the card aperture.

4. The apparatus according to claim 1, further comprising an actuator adapted to cause substantial release of the received card when activated.

5. The apparatus according to claim 1, wherein:

the exciter is adapted to impart vibratory action to the card rest; and

the card rest is adapted to impart vibratory action to the unshuffled cards supported thereon.

6. The apparatus according to claim 1, wherein:

the exciter is adapted to produce vibratory action; and

the exciter is connected to the card rest.

7. The apparatus according to claim 1, further comprising a sensor adapted to detect whether the card has been received into the card space.

8. An apparatus for randomly shuffling a plurality of playing cards used in gaming;

comprising;

at least one card support adapted to support the cards on-edge in their unshuffled state;

an exciter adapted to impart vibratory action to the supported cards;

a card receiver adapted to receive only one card released at a time from the at least one card support, and to temporarily retain the received card, prior to its delivery to a card collector as a randomly shuffled card, in a manner to substantially block the passage of the next card from the at least one card support; and

a positioner adapted to randomly reposition the supported cards relative to the card receiver.

9. The apparatus according to claim 8, further comprising a card aperture in a surface of the at least one card support, through which card aperture, cards are released from the at least one card support to the card receiver.

10. The apparatus according to claim 8, wherein the card receiver comprises a card space in which the received card is retained, wherein the card receiver is adapted to selectively release the retained card.

11. The apparatus according to claim 8, further comprising a surface on the at least one card support upon which the cards are supported, wherein the card receiver is adapted to retain the received card in a position in which an upper edge of the at least one retained card is substantially flush with the surface.

12. A method of randomly shuffling a plurality of playing cards used in gaming, comprising:

supporting the cards on a surface in their unshuffled state;

imparting vibratory action to the supported cards;

allowing only one supported card to drop at a time into a card receiver prior to its delivery to a card collector as a randomly shuffled card;

in response to allowing the supported card to drop, temporarily retaining the dropped card within the card receiver to substantially block passage of the next card from the support surface; and

in response to retaining the card, randomly repositioning the supported cards relative to the retained card.

13. The method according to claim 12, further comprising detecting that the card is retained in the card receiver.

14. The method according to claim 12, further comprising detecting that the card is retained in the card receiver, wherein randomly repositioning the supported cards is performed in response to detecting that the card is retained.

15. The method according to claim 12, wherein randomly repositioning the supported cards relative to the retained card comprises placing the supported cards in a randomly selected position relative to the retained card.

16. The method according to claim 12, wherein retaining the card comprises retaining the card in a position in which an edge of the retained card is substantially flush with the surface.

17. The method according to claim 12, wherein supporting the cards on the surface comprises supporting the cards in a substantially upstanding orientation.

18. The method according to claim 12, wherein supporting the cards on the surface comprises supporting the cards substantially on-edge.

19. The method according to claim 12, wherein:

allowing the supported card to drop into the card receiver comprises allowing a plurality of supported cards to sequentially drop into the card receiver according to a random sequence;

temporarily retaining the dropped card within the card receiver comprises temporarily sequentially retaining each of the plurality or received cards according to the random sequence;

randomly repositioning the supported cards comprises repositioning the supported cards during retention of each of the plurality of cards; and

further comprising releasing the card from the retained position comprising sequentially releasing each of the retained cards according to the random sequence.

20. An apparatus for randomly shuffling a plurality of playing cards, comprising:

at least one card support for supporting playing cards on-edge in their unshuffled state;

at least one aperture in the at least one card support through which playing cards may drop one at a time;

at least one exciter adapted to impart vibrational activity in playing cards positioned on the at least one card support;

at least one receptacle for receiving cards that pass through the at least one aperture as randomly shuffled cards.

21. The apparatus according to claim 20, and further comprising at least one guide between the at least one aperture and the at least one receptacle for affecting the orientation of cards dropping through the at least one aperture.

22. The apparatus according to claim 20, and further comprising at least one card stop which holds dropped cards in position to block the at least one aperture.

23. The apparatus according to claim 20, and further comprising at least one pneumatic guide which affects orientation of a card dropping into the at least one receptacle.

24. A method for randomly shuffling playing cards comprising:

placing the playing cards upon a card support in their unshuffled state;

vibrating the playing cards positioned on the card support to impart vibratory action to the supported playing cards;

controllably dropping the playing cards through at least one support drop slot one at a time;

changing positions of the vibrating cards with respect to at least one drop slot formed within the card support to randomly cause playing cards to drop through the at least one drop slot; and

collecting cards in at least one collector to produce randomly shuffled cards.

25. The method according to claim 24, further comprising guiding the playing cards after the controllably dropping to facilitate collecting of recompiled cards.

26. The method according to claim 24, further comprising guiding the playing cards after the controllably dropping to facilitate collecting of recompiled cards, the guiding including mechanically diverting the playing cards.

27. The method according to claim 24, further comprising guiding the playing cards after the controllably dropping to facilitate collecting of recompiled cards, the guiding including pneumatically diverting the playing cards.