Jammed shuffle detector

• US 5,303,921 A
• Filed: 12/31/1992
• Issued: 04/19/1994
• Est. Priority Date: 12/31/1992
• Status: Expired due to Term

• Current Assignee: Sg Gaming, Inc. (Light & Wonder Incorporated)
• Original Assignee: SHFL Entertainment Incorporated (Light & Wonder Incorporated)
• Inventors: Breeding, John G.
• Primary Examiner(s): SHAPIRO, PAUL
• Application Number:
  US07/999,001
• Time in Patent Office: 474 Days
• Field of Search: 273/149 R, 250/229, 250/231.1, 250/231.11, 200/61.02, 200/61.20, 200/61.40, 200/61.42, 200/84 R
• US Class Current: 273/149.00R
• CPC Class Codes: A63F 1/12 Card shufflers

Abstract

The present invention provides a floating jammed shuffle detector for use in a card shuffling machine. The detector has a body with a card contacting portion and a sensor interactive portion. A detector housing and a photosensor are provided. The sensor interactive portion has an aperture of a predetermined size. The detector, particularly the body, is reciprocally mounted in the housing, whereby the card contacting portion of the detector contacts the uppermost card of a deck of cards and the sensor interactive portion is received in the photosensor. Depending on the sensed position of the card contacting portion of the detector, the machine receives a reshuffle or proceed command.

Claims

1. A shuffling machine for shuffling playing cards and a jammed shuffle detecting means for detecting a jammed shuffle, wherein said machine includes means for separating a deck of playing cards into at least two deck portions, and wherein said jammed shuffle detecting means comprises means for determining the location of an uppermost card of one of said two deck portions.

2. A shuffling machine for shuffling playing cards and a jammed shuffle detecting means for detecting a jammed shuffle, wherein said shuffling machine comprises:

a carriage means for receiving a deck of cards, separating the deck into two deck portions, relatively rotating the deck portions to and from an angular relationship with a corner of each in close proximity, and for urging the deck portions generally toward each other; and

mandrel means for riffling the adjacent corners while said deck portions are being urged toward each other thereby interleaving the cards, wherein said jammed shuffle detecting means comprises;

a card contacting means for contacting an uppermost card of the playing cards being shuffled by said machine; and

sensing means for sensing the position of said card contacting means.

3. The shuffling machine according to claim 2, wherein said card contacting means comprises a generally vertical shank having a first end and a second end, a generally horizontal arm being attached to the first end and extending generally laterally away from said shank, said second end being adapted to interact with said sensing means.

4. The shuffling machine according to claim 3, wherein said card contacting means generally reciprocates vertically as said mandrel means riffles said playing cards.

5. The shuffling machine according to claim 3, wherein said sensing means comprises a photosensor.

6. The shuffling machine of claim 2 and means responsive to the jammed shuffle sensing means for actuating the mandrel means to re-riffling the adjacent corners of the cards to interleave the cards thereby clearing a jammed shuffle.

7. The shuffling machine of claim 6 wherein said card contacting means includes an arm, said sensing means being operably interactive with said arm for sensing the position of said arm.

8. The shuffling machine of claim 7 wherein said arm is connected to a generally vertical shank having a first end and a second end, said arm being connected to the first end and extending generally laterally away from said shank, said second end being adapted to interact with said sensing means.

9. The shuffling machine according to claim 8, wherein said sensing means comprises a photosensor.

10. A shuffling machine for shuffling playing cards comprising:

means for separating the deck into a pair of deck portions;

means for moving one of said deck portions to a position at an angle to the other deck portion;

means for elevating an adjacent corner of each of said deck portions and releasing said corners to interleaf said pair of deck portions; and

a jammed shuffle detector comprising means for determining the location of the uppermost card of one of said pair of deck portions.

11. The shuffling machine of claim 10 and means responsive to the jammed shuffle sensing means for actuating the elevating means to re-release the adjacent corners of the cards to interleave the cards thereby clearing a jammed shuffle.

12. The shuffling machine of claim 11 wherein said jammed shuffle detector further comprises card contacting means for contacting an uppermost card of playing cards being shuffled by said machine, and sensing means for sensing the position of said card contacting means.

13. The shuffling machine of claim 12 wherein said card contacting means includes an arm, said sensing means being operably interactive with said arm for sensing the position of said arm.

14. The shuffling machine of claim 13 wherein said arm is connected to a generally vertical shank having a first end and a second end, said arm being connected to the first end and extending generally laterally away from said shank, said second end being adapted to interact with said sensing means.

15. The shuffling machine of claim 14 wherein said sensing means comprises a photosensor.