Automatic card shuffler

• US 7,461,843 B1
• Filed: 07/08/2004
• Issued: 12/09/2008
• Est. Priority Date: 08/23/2002
• Status: Expired due to Fees

• Current Assignee: Sg Gaming, Inc. (Scientific Games Corporation)
• Original Assignee: Elixir Gaming Technologies, Inc.
• Inventors: Blad, Steven J., Hessing, Lynn, Price, Carl W., Price, Phil, Baker, Thompson
• Primary Examiner(s): Kim; Gene
• Assistant Examiner(s): COLLINS, DOLORES R
• Application Number:
  US10/887,062
• Time in Patent Office: 1,615 Days
• Field of Search: 273/149, 273/149.R, 273/292, 463/12, 463/25, 463/29
• 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 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. Adjustment means permit the shuffler to accommodate different sized cards. 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. By utilizing separate motors to drive the belts and rollers it is possible to cease the movement of the belts so that the rollers independently act upon the cards. 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 a plurality of playing cards comprising:

a card input unit for receiving and supporting a first stack of playing cards therein, the card input unit defining a first side location adjacent thereto and a second side location adjacent thereto, wherein the first and second side locations are on substantially opposing sides of the card input unit;

a random card ejection unit positioned in the first side location for causing at least a portion of a card to protrude from the first stack of playing cards substantially in the direction of the second side location and at a varying position in the first stack;

a pair of vertically positioned rollers positioned in the second side location and defining a card receiving space between the rollers for receiving the protruding cards at any position in the first stack of playing cards, said rollers rotatable about a vertical axis and being operable to move the cards by contacting opposing edges of the protruding playing cards wherein at least one roller is adjustable to change a horizontal distance between the rollers to accommodate cards having different heights or widths;

a motor for driving said rollers; and

a collection unit for retaining a second stack of playing cards, wherein the second stack of playing cards includes randomly arranged cards.

2. The apparatus of claim 1 wherein a position of the at least one roller is incrementally adjustable.

3. The apparatus of claim 1 wherein the at least one adjustable roller resides within a collar in an off-set position, said roller adjustable by means of an arm attached to the collar and extending from a shuffler frame.

4. The apparatus of claim 3 wherein the at least roller rotates and shifts position within the collar such that it moves away from, or towards, an opposite roller.

5. The apparatus of claim 3 wherein the arm includes pre-established settings.

6. The apparatus of claim 1 further comprising a gear for receiving a securing device for securing said at least one adjustable roller in place once adjusted.

7. The apparatus of claim 6 wherein the securing device is selected from a screw or bolt.

8. The apparatus of claim 1 further comprising an eccentric hex shaft in communication with a roller support platform such that rotation of the shaft causes the platform to re-position thereby adjusting the at least one roller supported thereon.

9. The apparatus of claim 8 further comprising a knob for rotating the shaft.