AUTOMATIC CARD SHUFFLER

• US 20040036214A1
• Filed: 08/23/2002
• Published: 02/26/2004
• Est. Priority Date: 08/23/2002
• Status: Active Grant

• Current Assignee: Sg Gaming, Inc. (Scientific Games Corporation)
• Original Assignee: Carl W. Price, Lynn Hessing, Phil Price, Steven J. Blad, Thompson Baker
• Inventors: Baker, Thompson, Blad, Steven J., Hessing, Lynn, Price, Carl W., Price, Phil
• Granted Patent: US 6,698,756 B1
• Time in Patent Office: Days
• US Class Current: 273/149R
• CPC Class Codes: A63F 1/10 Card holders
• CPC Class Codes: A63F 1/12 Card shufflers
• CPC Class Codes: A63F 1/14 Card dealers

Abstract

An automatic card shuffler includes a card input unit, card ejection unit, card separation and delivery unit and card collection unit. A card ejection unit ejects cards in a singular fashion from a stack of cards placed into the input unit. The cards are ejected to a stop arm maintaining the entrance to the card separation unit. Upon processor command, the stop arm raises to allow a plurality of cards to pass under to the card separation and delivery unit. A series of rotating belts and rollers act to separate the cards and propel them individually to the collection unit. A floating gate slightly forward of the stop arm dictates that a minimum number of cards are managed simultaneously. The shuffler is controlled by a processing unit in communication with multiple internal sensors. An audio system communicates voice outputs regarding shuffler malfunctions and instructions to an operator.

Claims

1. An apparatus for randomly arranging and dealing a plurality of playing cards comprising:

a random card ejection unit for randomly arranging and ejecting a plurality of stacked playing cards;

a card separation unit for receiving said ejected cards, said ejected cards forming a new staggered card stack rear of a stop arm, said stop arm placed rear of an adjustable means for limiting the number of ejected playing cards having access at any single time to said card separation unit;

a card delivery unit for receipt of successive bottom most playing cards separated from said new card stack; and

a card collection unit for receipt of successively separated cards delivered by said delivery unit.

2. The apparatus of claim 1 wherein an angle of placement of the stop arm causes the ejected cards to stack in a staggered fashion rear of the stop arm.

3. The apparatus of claim 1 wherein said stop arm is systematically raised for allowing one or more playing cards in the new stack access to said separation unit.

4. The apparatus of claim 1 further comprising an adjustable floating gate spaced forward of said stop arm, said floating gate preventing no more than three playing cards from being simultaneously advanced to the separation unit.

5. The apparatus of claim 1 further comprising an audio system for generating voice outputs related to a status of the apparatus.

6. The apparatus of claim 5 wherein the apparatus status includes at least one voice indication from the group consisting of a card jam indication, ready to shuffle indication, complete hand in the collection unit indication, remove cards in the collection unit indication and input cards indication.

7. The apparatus of claim 1 wherein once a first predetermined number of cards are ejected, said ejection unit ceases operation until such time that said delivery unit causes a second predetermined number of cards to be delivered to said collection unit.

8. The apparatus of claim 1 wherein the card separation unit comprises one or more rotating belts adjacent a card traveling surface for contacting a successive bottom most card in the new card stack, said successive card being propelled forward under a floating gate and one or more upper separation feed rollers by the one or more rotating belts.

9. The apparatus of claim 8 wherein a centerline of said separation feed rollers is placed slightly forward of a centerline of a center separation belt pulley.

10. The apparatus of claim 1 wherein said delivery unit comprises one or more unpowered upper delivery feed rollers and one or more lower driven delivery feed rollers, said upper and lower delivery feed rollers positioned near a forward end of one or more lower rotating belts of said separation unit and said lower feed rollers rotating at a relative speed greater than said lower rotating belts.

11. The apparatus of claim 10 wherein said lower delivery feed rollers and said belts are driven by a common motor.

12. The apparatus of claim 10 wherein said differential in relative rotational speed of said one or more belts and said lower driven delivery feed rollers provides spacing between successive cards as they are delivered to said card collection unit.

13. A method of randomly arranging and dealing a plurality of playing cards comprising the steps of:

randomly ejecting single cards from a stack of a plurality of cards, said ejected cards forming a new staggered stack rear of a card separation unit,

limiting the number of ejected cards having access to the card separation unit at any single time;

separating a successive bottom most card from said new stack; and

delivering said separated successive bottom most card to a card collection unit.

14. The method of claim 13 wherein an angle associated with a stop arm causes the new card stack to be staggered rear thereof.

15. The method of claim 14 wherein said stop arm is systematically raised thereby allowing one or more playing cards in the new stack access to said separation unit.

16. The method of claim 14 further comprising an adjustable floating gate spaced forward of said stop arm, said floating gate preventing more than a predetermined number of playing cards from being simultaneously delivered to the collection unit.

17. The method of claim 13 further comprising an audio unit for generating voice outputs related to apparatus status.

18. The method of claim 17 wherein the apparatus status includes at least one voice indication from the group consisting of a card jam indication, ready to shuffle indication, complete hand in the collection unit indication, remove cards in the collection unit indication and input cards indication.

19. The method of claim 13 wherein once a first predetermined number of cards are ejected, said ejecting of cards terminates until such time that said delivery unit causes a second predetermined number of cards to be delivered to said collection unit.

20. The method of claim 13 wherein the card separation unit comprises one or more rotating belts adjacent a card traveling surface for contacting a successive bottom most card in the new card stack, said successive card being propelled forward under a floating gate and one or more upper separation feed rollers by the one or more rotating belts.

21. The method of claim 20 wherein a centerline of said separation feed rollers is placed slightly forward of a centerline of a center separation belt pulley.

22. The method of claim 13 wherein said delivery unit comprises one or more unpowered upper delivery feed rollers and one or more lower driven delivery feed rollers, said upper and lower feed rollers positioned near a forward end of one or more lower rotating belts of said separation unit and said lower feed rollers rotating at a relative speed greater than said lower rotating belts.

23. The method of claim 22 wherein said lower feed rollers and said lower belts are driven by a common motor.

24. The method of claim 22 wherein said differential in relative rotational speed of said one or more belts and said lower driven delivery feed rollers provides spacing between successive cards as they are delivered to said card collection unit.

25. An apparatus for randomly arranging playing cards comprising:

a card displacement mechanism; and

an audio system for generating voice outputs related to a status of the apparatus.

26. The apparatus of claim 25 wherein the apparatus status includes at least one voice indication of the group consisting of a card jam indication, ready to shuffle indication, complete hand in the collection unit indication, remove cards in the collection unit indication and input cards indication.

27. The apparatus of claim 25 wherein the audio system generates voice outputs in the form of instructions related to operation of the apparatus.

28. A card shuffler comprising:

a card displacement mechanism;

a microprocessor for controlling operation of the card shuffler; and

an audio system in communication with said microprocessor, said audio system for generating voice outputs related to a status of the card shuffler.

29. A method of shuffling playing cards comprising the steps of:

loading playing cards into a card shuffling apparatus;

actuating the card shuffling apparatus to rearrange the playing cards; and

generating voice outputs related to a status of the card shuffling apparatus.

30. The method of claim 29 further including means for delivering a predetermined number of cards.

31. The method of claim 30 wherein said means for delivering a predetermined number of cards includes a card separation and delivery unit.