IP Library › Granted Patent US 8,538,155
Granted Patent B2
US 8,538,155 · App. 13/438,193 · Granted Sep 17, 2013

Card shuffling apparatus and card handling device

Inventors: Justin G. Downs, III (Henderson, NV); James R. Roberts (North Las Vegas, NV); Kapilkumar N. Kulakkunnath (Las Vegas, NV); Vladislav Zvercov (Las Vegas, NV)
Assignee: SHFL Entertainment, Inc.
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Quick Facts
Patent No.
US 8,538,155
App. No.
13/438,193
Granted
Sep 17, 2013
Kind
B2
Abstract

A device for forming a random set of playing cards comprises a card in-feed area, a shuffling system, a card removal area, and a card reading system located within the device, the card reading system employing a complementary metal-oxide semiconductor (CMOS) sensor and a hardware component, the hardware component capable of converting signals from the CMOS sensor into vector sets and comparing the vector sets to known vectors to determine rank and suit.

Claims (26)

1. A card shuffling apparatus, comprising:

a top surface;

a card receiving area for receiving a group of playing cards;

a randomizing system for randomizing an order of the initial set of playing cards;

a collection surface within a card collection area for receiving randomized playing cards, the collection surface positioned for receiving all cards below the top surface of the card shuffling apparatus;

a support structure tipped at an angle offset with respect to the vertical for supporting cards received on the collection surface; and

an elevator for raising the collection surface to elevate at least some randomized cards thereon at least to an elevation accessible from the top surface of the card shuffling apparatus.

2. The card shuffling apparatus of claim 1 , wherein the support structure comprises a vertical support structure sized to cause an edge of each card transferred to the collection surface to contact a surface of the vertical support structure.

3. The card shuffling apparatus of claim 2 , wherein the vertical support is angled between three and eight degrees from the vertical.

4. The card shuffling apparatus of claim 3 , wherein an upper portion of the vertical support structure is a greater horizontal distance from the card receiving area than a lower portion thereof.

5. The card shuffling apparatus of claim 1 , wherein the elevator is positioned to move along a path tipped with respect to the vertical.

6. The card shuffling apparatus of claim 1 , wherein the card receiving area extends substantially vertically and includes a declining support surface in a direction of the card collection area.

7. A card handling device, comprising:

an upper surface;

a stationary card receptacle configured to receive a group of playing cards;

a card feed mechanism;

a card receiving area for receiving playing cards delivered from the stationary card receptacle by the card feed mechanism below the upper surface of the card handling device, the card receiving area comprising:

a vertical card support oriented at an acute angle with respect to the vertical;

a platform movable within the vertical card support by an elevator; and

a drive system including an elevator for moving the platform.

8. The card handling device of claim 7 , wherein an upper portion of the vertical card support is horizontally spaced from the stationary card receptacle a greater distance than a lower portion is spaced from the stationary card receptacle.

9. The card handling device of claim 7 , wherein the vertical card support is oriented at an acute angle of between three and eight degrees with respect to the vertical.

10. The card handling device of claim 7 , further comprising a playing card randomizing system, wherein the card feed mechanism, the platform and the drive system comprise components of the playing card randomizing system.

11. The card handling device of claim 7 , wherein the drive system is configured to raise at least part of a stack of cards resting on the platform at least to a position accessible from the upper surface of the card handling device.

12. The card handling device of claim 7 , wherein the elevator is positioned to move the platform along a path aligned with the vertical card support.

13. The card handling device of claim 7 , wherein the card receptacle extends substantially vertically and includes a declining support surface in a direction of the card receiving area.

Assignments (17)
SECURITY AGREEMENT Recorded May 23, 2025
From: LNW GAMING, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 071340/0404 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE NUMBERS LISTED PREVIOUSLY RECORDED AT REEL: 051641 FRAME: 0588. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 21, 2023
From: BALLY GAMING, INC.
To: SG GAMING, INC.
Reel/Frame 063122/0355 →
CHANGE OF NAME Recorded Feb 7, 2023
From: SG GAMING, INC.
To: LNW GAMING, INC.
Reel/Frame 062669/0341 →
SECURITY AGREEMENT Recorded Apr 22, 2022
From: SG GAMING INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 059793/0001 →
RELEASE OF SECURITY INTEREST Recorded Apr 21, 2022
From: BANK OF AMERICA, N.A.
To: SCIENTIFIC GAMES INTERNATIONAL, INC.; WMS GAMING INC.; BALLY GAMING, INC.; DON BEST SPORTS CORPORATION
Reel/Frame 059756/0397 →
CHANGE OF NAME Recorded Jan 18, 2020
From: BALLY GAMING, INC.
To: SG GAMING, INC.
Reel/Frame 051641/0588 →
RELEASE OF SECURITY INTEREST IN PATENTS (RELEASES REEL/FRAME 034530/0318) Recorded Nov 5, 2018
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: SCIENTIFIC GAMES INTERNATIONAL, INC.; BALLY GAMING, INC.; WMS GAMING INC.
Reel/Frame 047924/0701 →
SECURITY AGREEMENT Recorded Apr 11, 2018
From: SCIENTIFIC GAMES INTERNATIONAL, INC.; BALLY GAMING, INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT
Reel/Frame 045909/0513 →
SECURITY AGREEMENT Recorded Dec 15, 2017
From: SCIENTIFIC GAMES INTERNATIONAL, INC.; BALLY GAMING, INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT
Reel/Frame 044889/0662 →
RELEASE OF SECURITY INTEREST IN PATENTS (RELEASES RF 031744/0825) Recorded Jul 25, 2017
From: BANK OF AMERICA, N.A.
To: SHFL ENTERTAINMENT, INC.,FORMERLY KNOWN AS SHUFFLE MASTER, INC.
Reel/Frame 043326/0668 →
SECURITY AGREEMENT Recorded Dec 4, 2014
From: BALLY GAMING, INC; SCIENTIFIC GAMES INTERNATIONAL, INC; WMS GAMING INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT
Reel/Frame 034530/0318 →
SECURITY AGREEMENT Recorded Dec 3, 2014
From: BALLY GAMING, INC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 034535/0094 →
RELEASE OF SECURITY INTEREST Recorded Dec 1, 2014
From: BANK OF AMERICA, N.A.
To: SHFL ENTERTAINMENT, INC; ARCADE PLANET, INC.; BALLY GAMING, INC; BALLY GAMING INTERNATIONAL, INC.; BALLY TECHNOLOGIES, INC.; SIERRA DESIGN GROUP
Reel/Frame 034501/0049 →
MERGER Recorded Sep 18, 2014
From: SHFL ENTERTAINMENT, INC.
To: BALLY GAMING, INC.
Reel/Frame 033766/0248 →
AMENDED AND RESTATED PATENT SECURITY AGREEMENT Recorded Nov 30, 2013
From: SHFL ENTERTAINMENT, INC., FORMERLY KNOWN AS SHUFFLE MASTER, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 031744/0825 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2013
From: DOWNS, JUSTIN G., III; ROBERTS, JAMES; KULAKKUNNATH, KAPILKUMAR N.; ZVERCOV, VLADISLAV
To: SHUFFLE MASTER, INC.
Reel/Frame 030392/0674 →
CHANGE OF NAME Recorded May 10, 2013
From: SHUFFLE MASTER, INC.
To: SHFL ENTERTAINMENT, INC.
Reel/Frame 030392/0743 →
Continuity (6)
Continuation 12842862 · Jul 23, 2010
Division 11488903 · Jul 18, 2006
Continuation In Part 11484011 · Jul 7, 2006
Continuation In Part 11417894 · May 3, 2006
Continuation In Part 11152475 · Jun 13, 2005
Related Publication 20120187625A1 · Jul 26, 2012