Abstract: A pinball machine has been designed with several novel mechanical and electrical features such that it is easily updatable, or alternately, retrofittable or convertible between a first pinball game and a second pinball game. The pinball machine includes a cabinet, a playfield, a panel, an electronics system, and a video display. The playfield is mounted in the cabinet with the panel mounted to the cabinet and overlaying at least a portion of the playfield. The video display is mounted generally above the cabinet and is disposed to project video images onto the panel for viewing by the player. The electronics system includes a control unit and a plurality of input/output elements which are mounted to the playfield. The control unit, which includes a controller and memory for storing game instructions and video images, is coupled to the plurality of input/output elements. The controller executes the game instructions to cause the video images to be displayed upon the video display.

Abstract: A pinball machine has been designed with several novel mechanical and electrical features such that it is easily retrofittable or convertible between a first pinball game and a second pinball game. The pinball machine includes a cabinet, a playfield mounted to the cabinet, and a backbox extending upwardly from a rear portion of the cabinet. To facilitate modification of electronics controlling the operation of the pinball machine, a controller box assembly is installed in the backbox. The controller box assembly comprises a rail structure mounted within the backbox and a controller box movably mounted relative to the rail structure to open and close the controller box. The controller box containing the electronics may be pivoted downwardly while remaining in engagement with the rail structure to provide easy access into the controller box.

Abstract: A pinball machine has been designed with several novel mechanical and electrical features such that it is easily retrofittable or convertible between a first pinball game and a second pinball game. One of these features is a novel playfield assembly for the pinball machine. For ease of movement of the playfield into and from a cabinet of the pinball machine, the playfield has skid rails which extend substantially along the length of the playfield. The skid rails are spaced from the lower side of the playfield by a distance that is greater than the distance by which components protrude from the lower side of the playfield. Thus, the playfield can be placed on the ground without any chance for damage of its components. The playfield may also include a slide stop at one or both of its ends. The slide stops engage the front molding of the cabinet to ensure the playfield does not fall into the cabinet or fall from the cabinet as the skid rails are being slid across the front molding.

Abstract: A pinball machine has been designed with several novel mechanical and electrical features such that it is easily retrofittable or convertible between a first pinball game and a second pinball game. The pinball machine includes a cabinet, a playfield, a panel, an electronics system, and a video display. The playfield is mounted in the cabinet with the panel mounted to the cabinet and overlaying at least a portion of the playfield. The video display is mounted generally above the cabinet and is disposed to project video images onto the panel for viewing by the player. The electronics system includes a control unit and a plurality of input/output elements which are mounted to the playfield. The control unit, which includes a controller and memory for storing game instructions and video images, is coupled to the plurality of input/output elements. The controller executes the game instructions to cause the video images to be displayed upon the video display.

Abstract: An automatic propelling feature for a pinball game having a playfield supporting a rolling ball and a plurality of targets thereon, comprises a propelling member, mounted to the playfield, for propelling the ball toward the target; a ball guide for guiding the ball to the propelling member; one or more sensors for detecting the ball along the ball guide; and processor circuitry, responsive to the sensors, for recording initial timing samples in a memory in response to the ball passing through the ball guide and being accurately propelled by the ball propelling member, operated by a player, toward one of the targets. In response to a predetermined number of the timing samples being recorded in the memory for at least one of the targets, the processor circuitry operates the propelling member based at least partially on the recorded timing samples and attempts to propel the ball toward the "qualifying" target in response to the ball passing through the ball guide.

Abstract: A pinball machine has been designed with several novel mechanical and electrical features such that it is easily serviceable and is easily retrofittable or convertible between a first pinball game and a second pinball game. One of these features is a novel mounting mechanism for a playfield of the pinball machine. The pinball machine includes a cabinet to which the playfield is mounted. The cabinet includes slides rails having notches for mating with corresponding pieces of the playfield thereby permitting easy rotation of the playfield within the cabinet during servicing or game conversion. Thus, the electronics and mechanical components below the playfield can be readily accessed.

Abstract: A pinball machine has been designed with several novel mechanical and electrical features such that it is easily retrofittable or convertible between a first pinball game and a second pinball game. The pinball machine includes a cabinet, a playfield, a playfield panel, an electronics system, and a video display. The playfield is mounted in the cabinet with the playfield panel mounted to the cabinet and overlaying at least a portion of the playfield. The video display is mounted generally above the cabinet and is disposed to project video images onto the playfield panel for viewing by the player. When the pinball machine is retrofitted, diagnostics can be performed while the playfield panel is still removed from the pinball machine by displaying diagnostic video images/information onto a partially reflective member positioned below the video display.

Abstract: A lock-down bar release system for a pinball machine serviceable in a location-service mode and an operator-service mode. The pinball machine includes a playfield disposed within a game cabinet and a lock-down bar for securing a playfield glass over the playfield and onto the game cabinet. A handle mechanism and associated latching structure is operable to release the lock-down bar. In the location-service mode, the movement of the handle and release of the lock-down bar is effected automatically by using a location-service key. In the operator-service mode, the operator uses an operator-service key to access the interior of the game cabinet through a coin door from wherein the operator may physically pull the handle to release the lock-down bar. The pinball machine includes a restraint mechanism for inhibiting removal of the playfield (and thereby preventing access to the coin box or cash box under the playfield) in the location-service mode.

Abstract: A pinball machine has been designed with several novel mechanical and electrical features such that it is easily retrofittable or convertible between a first pinball game and a second pinball game. The pinball machine includes a playfield mounted to a cabinet. Unlike previous pinball machines, electrical wires and their associated "playfield-side" connectors extending from input/output elements mounted to the playfield are limited in movement to a region generally beneath and in close proximity to the playfield. This allows the playfield to be more easily handled than prior playfields, which had long dangling electrical wires and connectors which could be easily tripped over or severed. Additionally, the plurality of playfield-side connectors are configured for easy installation and integration with corresponding "cabinet-side" connectors.

Abstract: A ball locking device includes a plurality of posts arranged to retract into or extendabove apertures in the game playfield. In the extended position, the posts form a cage which confines a game ball therein. The posts are arranged, for example, in a circular pattern and spaced from one another at a distance less than the diameter of the game ball. A solenoid, in conjunction with sensing devices, controls the movement of the posts to capture the ball in play or to release the captured ball at an appropriate time during game play. The locking device is hidden from the players view when in its retracted position.

Abstract: An amusement game includes a number of elements in a cabinet defining pinball play, including a playfield and flippers for propelling a ball onto the playfield. At least one control device operates the flippers and other features of the amusement game. The control device is manually engageable in at least two different fashions for producing at least two types of control signals. One of these types of control signals is for controlling the flippers and another of these types of control signals is for controlling other features of the amusement game.

Abstract: An amusement game which comprises a playfield having a game piece and a plurality of play features, and an apparatus for projecting a changeable virtual image in association with the playfield.

Abstract: A game which comprises a plurality of play devices and a panel for prohibiting access of a player to the plurality of play devices. The panel includes at least two optically distinct portions. A first optically distinct portion is substantially transparent for viewing at least one of the play devices and a second optically distinct portion is partially transparent for viewing at least another of the plurality of the play devices and partially reflective for reflecting a virtual image to be viewed by the player. The second optically distinct portion having a higher reflectivity than the first optically distinct portion.

Abstract: A pinball game comprises a cabinet, an inclined playfield, and a video display. The inclined playfield supports a rolling ball and a plurality of play features thereon. The cabinet includes a pair of opposing side walls and a rear wall extending between the opposing side walls. The playfield is housed within the cabinet such that the playfield is partially encompassed by the side walls and rear wall of the cabinet. An upper portion of the rear cabinet wall extends above a level of a rear portion of the playfield. The video display is mounted to this upper portion of the rear cabinet wall and is located in close proximity to the rear portion of the playfield. By mounting the display to the rear cabinet wall in close proximity to the playfield, the display can be easily viewed by a player during game play and, yet, allows the playfield to be easily serviced for maintenance and troubleshooting purposes without interference from the display.

Abstract: A pinball machine having a vertically displaceable ramp play feature. The ramp moves between an upper position in which it does not interfere with gameplay, and a lower position in which the lower edge of the ramp rests on the playfield. When the ramp is in the lower position, balls can be directed up the ramp towards a suitable target, such as a raised playfield.

Abstract: An illuminable ramp assembly for a pinball game having a playfield supporting a rolling ball thereon comprises an elongated molded plastic housing and a ball ramp extending alongside the housing. The housing encloses a power supply, a gas tube, protective end caps, and cushioning supports. The gas tube is powered by the power supply. To effectively suspend the gas tube within the housing and, at the same time, provide the gas tube with shock resistance, the protective end caps are mounted over opposing ends of the gas tube, and the cushioning supports are intermittently located along the length of the gas tube. The cushioning supports partially encompass the gas tube and are interposed between the gas tube and the housing. The ball ramp includes an entry end and an exit end. A switch capable of detecting the presence of the rolling ball is preferably located near the entry end of the ball ramp.

Abstract: A serpentine ramp is rotatable about a horizontal axis between its center and its upper end to lift a pinball from a lower play surface to an upper play surface. A ball is directed from the lower surface into a ball receiving portion in the lower end of the ramp. This closes an optical switch causing the ramp to rotate between a receiving position and a discharge position. A ball disposed in the receiving portion rolls on the ramp to its upper end and then onto the upper surface. A second optical switch is closed by the return of the ramp to the receiving position which terminates the operation of the device.

Abstract: A drop target for a pinball game includes a movable target element operably connected to a target driver. The target driver is controllably movable in response to energizing pulses from a game controller. A releasable latching mechanism moves in cooperation with the target driver and, when attached to the target element, communicates movement from the target driver to the target element so as to move the latter between a raised and lowered position. The target driver in one embodiment comprises a single solenoid including a coil and a plunger concentric with the coil. The plunger and target element move to a raised position in response to the game controller applying an initial energizing pulse to the coil. Thereafter, the game controller maintains the target in its raised position by applying a variable pattern of energizing pulses to the coil.

Abstract: A ramp with an integral ball deflector is positioned upon the playfield of a pinball game with its entrance approximately level with the playfield. A ball deflector having the shape of a triangle is mounted upon the bottom of the ramp with its widest portion near to the ramp entrance. The hypotenuse of the ball deflector defines a ball deflection surface. When a game ball rolls down the ramp, such as during roll back it is directed away from one of the side walls of the ramp by the ball deflection surface so that it later avoids an undesirable location on the playfield. A bifurcated entrance plate is connected between the ramp entrance and the playfield so that the ball deflector has a minimal effect upon a game ball entering the ramp.