Card shuffler with gravity feed system for playing cards

• US 7,967,294 B2
• Filed: 07/06/2009
• Issued: 06/28/2011
• Est. Priority Date: 03/24/2006
• Status: Active Grant

• Current Assignee: Sg Gaming, Inc. (Scientific Games Corporation)
• Original Assignee: Shuffle Master GMBH & Co KG (Scientific Games Corporation)
• Inventors: Krenn, Peter, Blaha, Ernst
• Primary Examiner(s): LAYNO, BENJAMIN
• Application Number:
  US12/498,297
• Publication Number:
  US 20090267297A1
• Time in Patent Office: 722 Days
• Field of Search: 273/149.R, 273/149.P, 463/22
• US Class Current: 273/149.00R
• CPC Class Codes: A63F 1/10 Card holders
• CPC Class Codes: A63F 1/12 Card shufflers
• CPC Class Codes: A63F 11/0002 Dispensing or collecting devices for tokens or chips dispensers for game pieces in chain reaction games A63F9/28; coin freed apparatus for games G07F17/32
• CPC Class Codes: G07F 17/3241 Security aspects of a gaming system, e.g. detecting cheating, device integrity, surveillance computer security G06F21/00

Abstract

A card feed system for feeding cards into a card handling system is disclosed. The system includes a card input department with a playing card support surface, a front wall, a rear wall and two side walls. The playing card support surface slopes towards the front wall at an angle between 12 and 22 degrees. A slot is provided in the front wall to allow single cards to pass into the card handling system. The card feed system also includes a card moving system to advance cards through the slot.

Claims

1. A feed system for feeding playing cards into a card handling system comprising:

a playing card input compartment having a playing card support surface, two side walls and a front barrier;

the playing card support surface having a slope towards the front barrier;

the front barrier having a slot that allows single playing cards to pass from the support surface through the slot into the card handling system;

a playing card moving system associated with the playing card input compartment that advances single playing cards through the slot;

wherein playing cards are pressed against the playing card moving system by gravity and without other mechanical pressure, and wherein an extendable and retractable blocking element is present in the vicinity of the slot to either prevent or allow playing cards to pass through the slot.

2. The feed system of claim 1 wherein the card handling system comprises a playing card shuffling system.

3. The feed system of claim 1 wherein the card support surface has a slope of between 12 and 21 degrees with respect to a horizontal plane.

4. The feed system of claim 3 wherein the slope is between 15 and 19 degrees.

5. The feed system of claim 1 wherein the blocking element extends and retracts through the front barrier.

6. The feed system of claim 1, and further comprising a front wall, wherein the barrier extends and retracts approximately parallel to the front wall.

7. The feed system of claim 1 wherein the blocking element extends and retracts approximately parallel to the front barrier.

8. The feed system of claim 1, wherein at least one feed roller extends through the playing card support surface.

9. The feed system of claim 1, wherein the front barrier comprises a wall.

10. The feed system of claim 9, wherein at least one of an extensible and retractable pin or a plate extends through the wall.

11. The feed system of claim 1, and further comprising a back wall and a glide element affixed to the back wall.

12. The feed system of claim 1, wherein the blocking element is selected from the group consisting of:

a finger, an angled plate, an angled pin and a plurality of fingers.

13. A feed system for feeding playing cards into a card handling system comprising:

a playing card input compartment having a playing card support surface, two side walls, an extendable and retractable blocking element, a front wall and a rear wall;

the playing card support surface having a slope towards the front wall;

the front wall having a slot that allows single playing cards to pass from the support surface through the slot into the card handling system;

a playing card moving system associated with the playing card input compartment that advances single playing cards through the slot;

wherein playing cards are pressed against the playing card moving system by gravity and without other mechanical pressure, and wherein an extendable and retractable blocking element is present in the vicinity of the slot to either prevent or allow playing cards to pass through the slot.

14. The feed system of claim 13, wherein the card handling system comprises a playing card shuffling system.

15. The feed system of claim 13, wherein the card support surface has a slope of between 12 and 21 degrees with respect to a horizontal plane.

16. The feed system of claim 13, wherein the extendable and retractable barrier extends and retracts approximately parallel to the front wall.

17. The feed system of claim 13, wherein at least one feed roller extends through the playing card support surface.

18. The feed system of claim 13, wherein the extendable and retractable element comprises at least one of an extensible and retractable pin or a plate extends through the front wall.

19. The feed system of claim 13, wherein and further comprising a glide element affixed to the back wall.

20. The feed system of claim 13, wherein the extendable and retractable blocking element is selected from the group consisting of:

a finger, an angled plate, an angled pin and a plurality of fingers.