1
Alfred Thomas, William A Gwiasda: Reel-type slot machine with supplemental payoff. WMS Gaming, Rockey Rifkin and Ryther, September 12, 1995: US05449173 (528 worldwide citation)

According to the present invention, a wildcard symbol is provided at a stop position of one of the reels in a typical reel-type slot machine. In addition to the usual spin and payoff cycle of such a machine, the appearance of the wildcard on the pay line is used to trigger a supplemental pay off und ...


2
Timothy J Durham: Method for determining payoffs in reel-type slot machines. WMS Gaming, Rockey Rifkin and Ryther, October 10, 1995: US05456465 (464 worldwide citation)

A method is disclosed for operating a microprocessor based reel-type slot machine. The payoff is randomly determined before any symbols are displayed. Two or more multiplier factors are randomly selected from separate predetermined groups. The factors are multiplied together to calculate the payoff. ...


3
Paul Simunek: Keno type video gaming device. WMS Gaming, Rockey Rifkin and Ryther, March 28, 1995: US05401024 (326 worldwide citation)

A keno type amusement device utilizes a microprocessor based video display system. One or more of the matched spots are replaced on the display with slot machine like "reel" displays. Each reel contains a plurality of different characters. The reels are spun and a character set is randomly generated ...


4
Neil D Nicastro, Timothy J Durham: Fractional branching reel-type slot machine. WMS Gaming, Rockey Rifkin and Ryther, October 29, 1996: US05569084 (196 worldwide citation)

A method of implementing desired odds for a reel-type slot machine is disclosed. All of the possible reel stop combinations are assigned to unique terminal nodes in one or more fractional branching trees stored in a ROM. The tree(s) comprises a main tier, a plurality of lower tiers and a plurality o ...


5
Lawrence DeMar: Audit and pricing system for coin-operated games. Williams Electronics Games, Rockey Rifkin and Ryther, October 26, 1993: US05257179 (179 worldwide citation)

An audit system for recording the activation of coin-operated electronic equipment and the amounts of money collected employing a real-time clock to time stamp information recorded in non-volatile or battery powered memory, such as total collections, number of games played, etc. The system also allo ...


6
Shaun L W Samuels: Method and apparatus for affixing an endoluminal device to the walls of tubular structures within the body. Rockey Rifkin and Ryther, June 13, 1995: US05423851 (172 worldwide citation)

A method and apparatus for affixing an endoluminal device to the walls of tubular structures within the body is disclosed which utilizes incremental inflation of a balloon cuff to deploy radially projecting barbs attached to the cuff within a plurality of recesses. At lower levels of cuff pressure, ...


7
Wayne H Rothschild, Gregory J Tastad: Drain system for slant top video game cabinets. WMS Gaming, Rockey Rifkin and Ryther, July 11, 1995: US05431492 (166 worldwide citation)

The invention consists of a slant top cabinet for a video game where the video monitor is located beneath a door. The side edges of the door mate with gutters such that liquid spilled into the seam of the door will drain into the gutters away from the monitor. A rubber seal is attached to and surrou ...


8
Bill Gwiasda, Eric Hujar: Slot machine arm switch controller. WMS Gaming, Rockey Rifkin and Ryther, December 5, 1995: US05472197 (138 worldwide citation)

In a reel-type slot machine, indicia (reel spin time, reel spin speed, sound, lights, etc.) are varied based on the manner in which the handle is operated. Microswitches are provided to start and stop a timer circuit such that the time required for the handle's rotation can be measured. The game mic ...


9
Shridhar P Joshi, John P Nicastro Sr: Multi-pay video poker machine. WMS Gaming, Rockey Rifkin and Ryther, May 16, 1995: US05415404 (125 worldwide citation)

A multi-pay video poker machine includes a microprocessor based video display system. The program permits higher payoffs when compared to conventional video poker games. In accordance with the present invention, it is recognized that each of the winning poker hands include constituent winning sub-ha ...


10
Elie C Daniel: Surgical retractor/compressor. Rockey Rifkin and Ryther, June 25, 1996: US05529571 (111 worldwide citation)

The surgical instrument of the invention consists of a pair of arms hinged together at an intermediate point for relative pivoting movement. The arms are provided with obliquely oriented handles at one end thereof. The opposite ends of the arms support removable posts having means for removably secu ...