Abstract: A wagering game award system for cross-store wagering includes at least two store operating units. Each store operating unit includes a first computer, a second computer, and a third computer. The first computer includes a player information verification unit and a wager feedback program, and is connected with a plurality of player machines. Each player machine can display a player operation interface. The second computer is connected with at least one game machine. The second computer is connected with the third computer of the other store operating unit. The player operation interface includes a player login field, a main game field, and a cross-store game selection field. The wager feedback program sets a wager amount range and judges whether or not the total wager amount of a player is eligible for feedback award. If eligible, the player operation interface displays a feedback award menu.

Abstract: A lottery ball machine includes a box body, having tubes at a top thereof; a ball guide seat, having upper through holes and ball return holes at a top thereof and ball passages therein, upper ends of the ball passages being connected to the upper through holes, lower ends of the ball passages being communicated with the tubes; a ball control seat disposed above the ball guide seat, including an upper seat plate assembly having ball outlets, a lower seat plate having limit holes, receiving tubes connected to the limit holes, and displacement plates disposed at the bottom of the lower seat plate; ball tracks, upper ends of the ball tracks being disposed under the ball return holes, lower ends of the ball tracks corresponding to the box body, a gate assembly being provided between each ball track and the box body; and blowers, located under the box body.

Abstract: A duplicate playing card output and recycling device is provided for an electronic game system to print, output, and recycle playing cards. The device is connected to the game system to print a duplicate playing card having the same suit and numeral as that dealt by the electronic game system. The device includes a printing device and a recycling device. The printing device is able to print the duplicate playing card to the player. The recycling device is able to recycle the duplicate playing card. The device enhances the fun and excitement of the game, and the duplicate playing card won't be arbitrarily disposed.

Abstract: A robotic arm suction cup capable of eliminating negative pressure is provided. A robotic arm is provided with a first suction cup and a second suction cup of unequal length. Each of the first and second suction cups is connected with a Y-shaped tube. An end of the Y-shaped tube is connected with a communication tube. The communication tube is connected with a vacuum pump. Another end of the Y-shaped tube is connected with a pressure detection tube. A distal end of the pressure detection tube is connected with a pressure detector. The first and second suction cups are not coplanar, and can effectively eliminate the negative pressure between the first and second suction cups and a playing card rapidly, so that the playing card can be separated from the first and second suction cups easily for the game to go on smoothly.