Abstract: An attendant-free midway-style electronic game machine. The game machine may be configured to detect when a projectile has been actuated towards the target. An electronic controller in electronic communication with said detector, may be configured to automatically end a game play session once a predetermined number of said game projectiles have been detected as having been actuated by a user toward said target. And, a virtual attendant display is provided, in electronic communication with a game controller, to greet and instruct and interact with players in playing the game.

Abstract: An attendant-free midway-style electronic game machine. The game machine includes a predetermined number of projectiles for game play during a user game play session, a lower cabinet or first structural portion, a target cabinet or second structural portion having a target, and at least one detector. The lower cabinet may include a counter section and an elongated ramp section ending proximal to a user play position. The target cabinet may be located on top of the ramp section and spaced a distance from the counter section. At least one detector, which may be in the form of a sensor array, is configured to detect when an interruption occurs in the array indicating a projectile has passed by the detection area. The game machine may be configured to detect when a projectile has been actuated towards the target or has ricocheted off the target and is traveling towards the counter section.

Abstract: A pipe thread cleaning device which cleans with pressurized water. The device contains a rigid outer shell and a cleaning assembly which is inserted into the outer shell to form an enclosure and includes a water input and rotatable spray nozzles to clean threaded pipe which is inserted into the device by rotatably applying a pressurized stream of water to the pipe threads.

Abstract: A pipe thread cleaning device which cleans with pressurized water. The device contains a rigid outer shell and a cleaning assembly which is inserted into the outer shell to form an enclosure and includes a water input and rotatable spray nozzles to clean threaded pipe which is inserted into the device by rotatably applying a pressurized stream of water to the pipe threads.

Abstract: Weights may be applied to temporally staggered value samples associated with a market item. Based on the weighted temporally staggered values, a value for an index is calculated. The calculated index value can then be output and used for any of a variety of purposes.