EP0281402A2 - Entertainment machines - Google Patents
Entertainment machines Download PDFInfo
- Publication number
- EP0281402A2 EP0281402A2 EP88301874A EP88301874A EP0281402A2 EP 0281402 A2 EP0281402 A2 EP 0281402A2 EP 88301874 A EP88301874 A EP 88301874A EP 88301874 A EP88301874 A EP 88301874A EP 0281402 A2 EP0281402 A2 EP 0281402A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- jackpot
- machine according
- win
- display
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
- G07F17/3244—Payment aspects of a gaming system, e.g. payment schemes, setting payout ratio, bonus or consolation prizes
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
- G07F17/326—Game play aspects of gaming systems
- G07F17/3267—Game outcomes which determine the course of the subsequent game, e.g. double or quits, free games, higher payouts, different new games
Definitions
- This invention relates to a coin-(or token-) operated entertainment machine of the kind which is operable to play games resulting in the selection and display of combinations of symbols and with which a win indication is given in the event that a symbol combination of a predetermined winning nature is obtained.
- the invention is more particularly, although not exclusively, concerned with such a machine which is a fruit machine and with which the displayed symbols (typically representations of fruit) are selected at random, for example, by rotation of reels.
- This modern jackpot feature is commonly linked to an auxiliary display with which different display regions, such as letters of a word or sections of a path or ladder, are illuminated in correspondence with selection of auuxiliary symbols such as numbers or letters accompanying (e.g. printed over) the main combination symbols, the jackpot win being obtained for example when all letters of a word have been illuminated or illumination has progressed along a path or ladder to reach a jackpot indicator.
- auxiliary display with which different display regions, such as letters of a word or sections of a path or ladder, are illuminated in correspondence with selection of auuxiliary symbols such as numbers or letters accompanying (e.g. printed over) the main combination symbols, the jackpot win being obtained for example when all letters of a word have been illuminated or illumination has progressed along a path or ladder to reach a jackpot indicator.
- An object of the present invention is to provide an entertainment machine having a jackpot feature and with which the above-described problem can be avoided or at lest appreciably reduced.
- a coin-(or token-) operated entertainment machine which is operable to play games resulting in the selection and display of combinations of symbols and with which a win indication is given in the event that a symbol combination of a predetermined winning nature is obtained and wherein at least one jackpot display is provided and the player has the opportunity in at least some games of achieving a jackpot win and thereby obtaining a prize award determined by an accumulated value shown on such jackpot display, characterised in that there is provided means for augmenting the displayed accumulated value and the corresponding prize award when the player achieves the jackpot win.
- the augmenting may be effected on a random or predetermined basis.
- the prize award is augmented such that a predetermined maximum prize value is obtained irrespective of the displayed value prior to the win. It is also possible to carry over a displayed jackpot award from one game to a next game which is already credited (or even to a next game which is not yet credited) without having to rely on the inducement of an increasing jackpot award to sustain player interest: the player knows that a substantial award (preferably of a predetermined maximum value) is available irrespective of the actual displayed award. The actual jackpot display therefore performs the function of demonstrating in an attractive way the availability of a substantial jackpot award without having to do this by actually making available an initial low level award.
- each display may compromise simulated coin receptacles, numerical displays or any other suitable display or combination of displays.
- the arrangement may be such that the or each jackpot display is progressively "filled" during the course of a game on a regular predictable basis or at random or in response to selection of a predetermined symbol or combination of symbols as desired.
- Such filling may involve simulated movement, e.g. of a coin, into the jackpot display.
- "filling" of the jackpot display may be completed e.g. by simulated movement of the requisite number of coins into the display.
- the jackpot prize value may be of a value of coins (or tokens) or may constitute one or more game features (such as fruit machine “hold” or “nudge” steps) or any other suitable award and the nature of the jackpot display will be of a corresponding format.
- Award of jackpot prize value may be made available in response to selection of a predetermined symbol combination.
- the jackpot feature may be linked to an auxiliary display whereby it is necessary to reach a predetermined position on a ladder or path or to illuminate a word or the like, by attaining successively appropriate auxiliary symbols accompanying the main symbol display, in order for a jackpot prize award to be made available.
- the jackpot prize award may be made available on a random basis.
- the machine of the invention is preferably a fruit machine of the kind described above.
- the entertainment machine shown in the drawings is a fruit machine and comprises a floor-standing box-shaped housing 1 having a front wall which includes a screen-printed glass sheet 2 and, below this sheet 2 a series of operating buttons including a start button 3, hold/nudge button 4, and a jackpot button 5.
- the front wall also contains a payout opening 6 and a coin slot 7.
- the housing there are three axially aligned reels 8 having, say, 20 symbols (such as pictures of fruit) at regularly spaced positions around their peripheries.
- the reels 8 are axially rotable and are drivably connected to respective stepper motors 9.
- the reels 8 are arranged behind a window 10 defined by a printed region of the glass panel 2.
- Each reel 8 can be arrested, by the respective stepper motor 9, in any of 20 stopping positions in which one symbol is in precise registration with a horizontal win line 11 in the centre of the window 10 and two further symbols are visible above and below the win line 11.
- the stepper motors 9 are connected to a microprocessor-based control unit 12.
- This control unit 12 is also connected to a coin mechanism 13.
- a payout mechanism 14 the buttons 3 - 5, various lamps 15 behind printed display regions of the panel and lamps 16 in the buttons 3 - 5.
- the panel 2 bears printed matter additional to the window 10 including the following:- information relating to the playing the game including details of awards which can be achieved; an auxiliary display constituting a ladder 17; a jackpot disply 18 made up of printed display regions representing coins adding up to a maximum prize value (say twenty 10p coins)
- the machine When the player inserts coins into the coin mechanism 13 through the coin slot 7 sufficient to generate credit for one or more games, the machine is actuated such that a game can now be played.
- the player can press the start button 3 to cause the reels 8 to rotate and come to rest after different respective random periods of time so as to display a selected symbol combination on the win line 11.
- the player At random at the start of some games the player is given the opportunity of arresting one or more reels 8 against rotation by pressing one or more hold/nudge buttons 4.
- the player At random at the end of some games the player is given the opportunity of stepping one or more reels 8 through one or more steps by pressing one or more hold/nudge buttons 4.
- the combination of symbols on the win line 11 is known by the control unit 12 since the original starting position of the reels 8 and the number of steps through which each reel has rotated is known (because each stepper motor 9 is driven by a counted number of impulses fed from the control unit 12). If the final combination is of a predetermined winning nature corresponding to a payout, the payout mechanism 14 is appropriate actuated.
- One or more symbols on the periphery of each reel is overprinted in conventional manner with a number.
- the bottom "run” 23 of the ladder 17 is illuminated.
- the illumination moves up the ladder, in convention manner, in correspondence with the value of any overprinted number which is on the win line 11.
- the illumination returns to the bottom "run” 23.
- the top position 24 on the ladder corresponds to a jackpot feature. If the top position 24 is illuminated, the player can press the jackpot buttom 5 and a payout equal to a jackpot prize award is made.
- the value of the award is always the same i.e.
- the maximum possible displayed value (£2.00) even if the actual displayed value immediately before achieving the win is less than the maximum (e.g. it may correspond to only say 30p or 40p represented by 3 or 4 illuminated regions 19).
- an augmenting device 20 is actuated and this causes the jackpot display 18 to fillup to the maximum level by successive illumination of those regions 19 which are not already illuminated.
- the successive illumination may simulate coins falling into the jackpot whereby on uppermost region 19 is first illuminated and then this is extinguished and in its place the next lowest region 19 is illuminated and so on.
- the device 20 which in practice may form part of the game programme may be actuated automatically when the jackpot win is achieved or when the button 5 is pressed.
- the contents of the display 18 may be increased. On each such occasion there may be a change representing dropping of one or more coins into the display 18.
Abstract
Description
- This invention relates to a coin-(or token-) operated entertainment machine of the kind which is operable to play games resulting in the selection and display of combinations of symbols and with which a win indication is given in the event that a symbol combination of a predetermined winning nature is obtained. The invention is more particularly, although not exclusively, concerned with such a machine which is a fruit machine and with which the displayed symbols (typically representations of fruit) are selected at random, for example, by rotation of reels.
- With a view to promoting the entertainment value of fruit machines it is known to provide a jackpot feature. With traditional mechanical fruit machines this customarily involves the provision of a mechanism which diverts occasional inserted coins into an exposed glass-fronted receptacle, the accumulated contents of the receptable being discharged to the player on attaining a predetermined jackpot symbol combination. With modern electronic fruit machines it is known to provide a display simulating this traditional jackpot feature comprising a number of representations of coins which are successively illuminated to simulate the filling of a receptacle, a payout determined by the number of illuminated coin representations being made, and illumination of the representations being correspondingly extinguished, when a jackpot win is obtained. This modern jackpot feature is commonly linked to an auxiliary display with which different display regions, such as letters of a word or sections of a path or ladder, are illuminated in correspondence with selection of auuxiliary symbols such as numbers or letters accompanying (e.g. printed over) the main combination symbols, the jackpot win being obtained for example when all letters of a word have been illuminated or illumination has progressed along a path or ladder to reach a jackpot indicator.
- With this known jackpot arrangement there is the problem that, after payout of a jackpot prize, the feature may be of little interest to the player until sufficient games have been played to give rise to the accumulation of an appreciable prize value.
- An object of the present invention is to provide an entertainment machine having a jackpot feature and with which the above-described problem can be avoided or at lest appreciably reduced.
- According to the invention therefore there is provided a coin-(or token-) operated entertainment machine which is operable to play games resulting in the selection and display of combinations of symbols and with which a win indication is given in the event that a symbol combination of a predetermined winning nature is obtained and wherein at least one jackpot display is provided and the player has the opportunity in at least some games of achieving a jackpot win and thereby obtaining a prize award determined by an accumulated value shown on such jackpot display, characterised in that there is provided means for augmenting the displayed accumulated value and the corresponding prize award when the player achieves the jackpot win.
- With this arrangement it will be understood that following a jackpot win, player interest can be maintained since it can be ensured that an appreciable award is obtained even in cases where the displayed jackpot award immediately prior to the win is of a low value.
- The augmenting may be effected on a random or predetermined basis. In a preferred embodiment the prize award is augmented such that a predetermined maximum prize value is obtained irrespective of the displayed value prior to the win. It is also possible to carry over a displayed jackpot award from one game to a next game which is already credited (or even to a next game which is not yet credited) without having to rely on the inducement of an increasing jackpot award to sustain player interest: the player knows that a substantial award (preferably of a predetermined maximum value) is available irrespective of the actual displayed award. The actual jackpot display therefore performs the function of demonstrating in an attractive way the availability of a substantial jackpot award without having to do this by actually making available an initial low level award.
- There may be any suitable number of a separate or related jackpot displays as desired. The or each display may compromise simulated coin receptacles, numerical displays or any other suitable display or combination of displays.
- The arrangement may be such that the or each jackpot display is progressively "filled" during the course of a game on a regular predictable basis or at random or in response to selection of a predetermined symbol or combination of symbols as desired. Such filling may involve simulated movement, e.g. of a coin, into the jackpot display. When a jackpot win is achieved "filling" of the jackpot display may be completed e.g. by simulated movement of the requisite number of coins into the display.
- The jackpot prize value may be of a value of coins (or tokens) or may constitute one or more game features (such as fruit machine "hold" or "nudge" steps) or any other suitable award and the nature of the jackpot display will be of a corresponding format.
- Award of jackpot prize value may be made available in response to selection of a predetermined symbol combination. Alternatively the jackpot feature may be linked to an auxiliary display whereby it is necessary to reach a predetermined position on a ladder or path or to illuminate a word or the like, by attaining successively appropriate auxiliary symbols accompanying the main symbol display, in order for a jackpot prize award to be made available. Alternatively or additionally the jackpot prize award may be made available on a random basis.
- When made available the jackpot value may be awarded automatically. Alternatively it may be necessary for the player to take appropriate action, for example, by pressing a jackpot payout button and in this case an element ofskill or choice may be introduced in that, for example, there may be an opportunity of "gambling" the award value. The machine of the invention is preferably a fruit machine of the kind described above.
- The invention will now be described further by way of example only and with reference to the accompanying drawings in which:
- Figure 1: is a diagrammatic view of the front of one form of an entertainment machine according to the invention; and
- Figure 1: is a schematic circuit diagram of the machine.
- The entertainment machine shown in the drawings is a fruit machine and comprises a floor-standing box-
shaped housing 1 having a front wall which includes a screen-printedglass sheet 2 and, below this sheet 2 a series of operating buttons including a start button 3, hold/nudge button 4, and ajackpot button 5. The front wall also contains a payout opening 6 and a coin slot 7. - Within the housing there are three axially aligned
reels 8 having, say, 20 symbols (such as pictures of fruit) at regularly spaced positions around their peripheries. Thereels 8 are axially rotable and are drivably connected to respective stepper motors 9. Thereels 8 are arranged behind a window 10 defined by a printed region of theglass panel 2. Eachreel 8 can be arrested, by the respective stepper motor 9, in any of 20 stopping positions in which one symbol is in precise registration with a horizontal win line 11 in the centre of the window 10 and two further symbols are visible above and below the win line 11. - The stepper motors 9 are connected to a microprocessor-based
control unit 12. Thiscontrol unit 12 is also connected to acoin mechanism 13. apayout mechanism 14, the buttons 3 - 5,various lamps 15 behind printed display regions of the panel and lamps 16 in the buttons 3 - 5. - The
panel 2 bears printed matter additional to the window 10 including the following:-
information relating to the playing the game including details of awards which can be achieved;
an auxiliary display constituting a ladder 17;
a jackpot disply 18 made up of printed display regions representing coins adding up to a maximum prize value (say twenty 10p coins) - In use, when the machine is first switched on, a few of the
coin representations 19 may be back-illuminated. This start-up procedure, as in the case with the subsequent game playing procedure yet to be described, is controlled by thecontrol unit 12 in accordance with a game programme stored in ROM memory addressed by the microprocessor of the unit. - When the player inserts coins into the
coin mechanism 13 through the coin slot 7 sufficient to generate credit for one or more games, the machine is actuated such that a game can now be played. In conventional manner the player can press the start button 3 to cause thereels 8 to rotate and come to rest after different respective random periods of time so as to display a selected symbol combination on the win line 11. At random at the start of some games the player is given the opportunity of arresting one ormore reels 8 against rotation by pressing one or more hold/nudge buttons 4. At random at the end of some games the player is given the opportunity of stepping one ormore reels 8 through one or more steps by pressing one or more hold/nudge buttons 4. - At the end of the game the combination of symbols on the win line 11 is known by the
control unit 12 since the original starting position of thereels 8 and the number of steps through which each reel has rotated is known (because each stepper motor 9 is driven by a counted number of impulses fed from the control unit 12). If the final combination is of a predetermined winning nature corresponding to a payout, thepayout mechanism 14 is appropriate actuated. - One or more symbols on the periphery of each reel is overprinted in conventional manner with a number. Initially (e.g. when credit is first accumulated by insertion of coins), the bottom "run" 23 of the ladder 17 is illuminated. At the end of a game the illumination moves up the ladder, in convention manner, in correspondence with the value of any overprinted number which is on the win line 11. On reaching the top of the ladder 17 the illumination returns to the bottom "run" 23. The
top position 24 on the ladder corresponds to a jackpot feature. If thetop position 24 is illuminated, the player can press thejackpot buttom 5 and a payout equal to a jackpot prize award is made. The value of the award is always the same i.e. the maximum possible displayed value (£2.00) even if the actual displayed value immediately before achieving the win is less than the maximum (e.g. it may correspond to only say 30p or 40p represented by 3 or 4 illuminated regions 19). However, before the payout of the award is made an augmentingdevice 20 is actuated and this causes thejackpot display 18 to fillup to the maximum level by successive illumination of thoseregions 19 which are not already illuminated. The successive illumination may simulate coins falling into the jackpot whereby onuppermost region 19 is first illuminated and then this is extinguished and in its place the nextlowest region 19 is illuminated and so on. Thedevice 20 which in practice may form part of the game programme may be actuated automatically when the jackpot win is achieved or when thebutton 5 is pressed. - At appropriate occasions, e.g. at random or at the start or end of each game, the contents of the
display 18 may be increased. On each such occasion there may be a change representing dropping of one or more coins into thedisplay 18. - At the end of the game not resulting in a jackpot win the distribution of coins in the
display 18 may be maintained for the next game, even if there is no credit remaining for the playing of the next game and thelamps 15 of thedisplays 18 may remain lit during this carry over period between games so as to display the distribution to the player. In the event that a jackpot win is obtained the machine resets and returns to the start-up displayed pattern of coins. - This carry over of a jackpot feature from game to game is only of a simulated nature. The available jackpot payout is always the same irrespective of the number of filled regions 9 in the jackpot display.
- Whilst reference is made to movement of features on and interpretation of the displayed information on the
front panel 2, it is of course to be appreciated that the motivation for the changes in the displays and the interpretation of such changes occurs within thecontrol unit 12. Thus, when lights advance up rungs of the ladder 17 in correspondence with overprinted numbers on the reel displays, this occurs because theunit 12 knows the stopping positions of the reels (as discussed above) and is therefore able to derive a numerical value (corresponding to the overprinted number) from stored data. This numerical value is used to control the transmission of switching pulses to the ladder lights and the finally illuminated rung is known as a function of the number of such switching pulses. Similarly, movemet of the coins and illumination ofregion 19 is controlled by feed of switching pulses from the unit and the operation of thedevice 20 and the payout to be made are determined by theunit 12. with reference to stored data and not by reference to theregion 19 illuminated. - It is of course to be understood that the invention is not intended to be restricted to the details of the above embodiment which are describ by way of example only. In particular, although reference is made to coins and to a payout it is to be understood that the jackpot may represent nudges or other features rather than coins.
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878705323A GB8705323D0 (en) | 1987-03-06 | 1987-03-06 | Entertainment machines |
GB8705323 | 1987-03-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0281402A2 true EP0281402A2 (en) | 1988-09-07 |
EP0281402A3 EP0281402A3 (en) | 1989-09-27 |
Family
ID=10613469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88301874A Withdrawn EP0281402A3 (en) | 1987-03-06 | 1988-03-03 | Entertainment machines |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0281402A3 (en) |
GB (2) | GB8705323D0 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991017529A1 (en) * | 1990-05-07 | 1991-11-14 | Th. Bergmann Gmbh & Co. | Roulette-type slot machine |
EP1168261A2 (en) * | 2000-06-21 | 2002-01-02 | IGT-UK Limited | Entertainment machines |
US6602135B1 (en) * | 2000-10-06 | 2003-08-05 | Igt | Gaming device having a changing multiple selection set bonus scheme |
US6739971B2 (en) * | 2001-04-11 | 2004-05-25 | Wms Gaming Inc. | Bonus accumulator for chance game |
US6827646B2 (en) | 1994-09-23 | 2004-12-07 | Igt | Slot machine with an additional payout indicator |
US7156738B2 (en) * | 2001-01-16 | 2007-01-02 | Igt | Casino gambling machine with bonus round award redemption |
US7192344B2 (en) | 2001-01-30 | 2007-03-20 | Igt | Gaming device having an award level determination competition |
US7338371B2 (en) | 2003-07-03 | 2008-03-04 | Igt | High low series gambling game |
US7361087B2 (en) | 2003-07-18 | 2008-04-22 | Igt | Gaming device having high-low game |
US7588494B2 (en) | 2003-09-05 | 2009-09-15 | Igt | Gaming device having a high-low game |
US7654897B2 (en) | 2001-04-11 | 2010-02-02 | Wms Gaming Inc. | Bonus accumulator for a wagering game |
US8257164B2 (en) | 2007-10-30 | 2012-09-04 | Igt | Gaming system, gaming device and method for providing an outcome enhancing feature |
US8272940B2 (en) | 2003-08-28 | 2012-09-25 | Igt | Gaming device having match game with award determined by prediction of correct matches |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2227946B (en) * | 1989-02-13 | 1992-12-02 | Technical Casino Services Ltd | Roulette game and apparatus |
US5277424A (en) * | 1992-07-08 | 1994-01-11 | United Gaming, Inc. | Video gaming device utilizing player-activated variable betting |
US7824252B1 (en) | 1992-10-02 | 2010-11-02 | Bally Gaming, Inc. | Mechanical wheel indicator with sound effects |
US7766329B1 (en) | 1992-10-02 | 2010-08-03 | Sierra Design Group | Wheel indicator and ticket dispenser apparatus |
US5292127C1 (en) | 1992-10-02 | 2001-05-22 | Arcade Planet Inc | Arcade game |
JP2971285B2 (en) * | 1993-04-16 | 1999-11-02 | アルゼ株式会社 | Display devices for gaming machines |
DE4343346C2 (en) * | 1993-12-18 | 2002-07-25 | Panther Appbau Und Vertriebsge | Method for operating a coin-operated entertainment device |
DE4431060C2 (en) * | 1994-09-01 | 1999-05-20 | Nsm Ag | Method for operating a money-operated entertainment device |
DE4432898C2 (en) * | 1994-09-15 | 1999-06-17 | Nsm Ag | Money-operated entertainment device |
US5823874A (en) | 1994-09-23 | 1998-10-20 | Anchor Gaming | Method of playing game and gaming device with an additional payout indicator |
US6234897B1 (en) | 1997-04-23 | 2001-05-22 | Wms Gaming Inc. | Gaming device with variable bonus payout feature |
US6004207A (en) * | 1997-12-23 | 1999-12-21 | Wms Gaming Inc. | Slot machine with incremental pay-off multiplier |
US6190255B1 (en) * | 1998-03-24 | 2001-02-20 | Wms Gaming Inc. | Bonus game for a gaming machine |
US6315660B1 (en) * | 1998-03-24 | 2001-11-13 | Wms Gaming Inc. | Gaming machines with board game theme |
US6159098A (en) * | 1998-09-02 | 2000-12-12 | Wms Gaming Inc. | Dual-award bonus game for a gaming machine |
US6592457B1 (en) | 1999-05-26 | 2003-07-15 | Wms Gaming Inc. | Gaming machine with player selected events |
US6443837B1 (en) | 1999-05-26 | 2002-09-03 | Wms Gaming Inc. | Bonus games for gaming machines with strategy options |
US6358147B1 (en) | 1999-06-23 | 2002-03-19 | Wms Gaming Inc. | Gaming machine with multiple payoff modes and award presentation schemes |
US6159097A (en) * | 1999-06-30 | 2000-12-12 | Wms Gaming Inc. | Gaming machine with variable probability of obtaining bonus game payouts |
US6155925A (en) * | 1999-08-12 | 2000-12-05 | Wms Gaming Inc. | Bonus game for gaming machine with payout percentage varying as function of wager |
US7393280B2 (en) | 2001-08-17 | 2008-07-01 | Igt | Class of feature event games suitable for linking to multiple gaming machines |
US7435173B2 (en) | 2002-09-12 | 2008-10-14 | Igt | Gaming device having slidable indicator disks |
GB2385455B (en) * | 2003-06-07 | 2006-09-13 | Mazooma Games Ltd | A prize display means |
US7775870B2 (en) | 2003-11-21 | 2010-08-17 | Sierra Design Group | Arcade game |
US8721422B2 (en) | 2004-05-19 | 2014-05-13 | Wms Gaming Inc. | Wagering game with award enhancement feature |
WO2009061994A1 (en) | 2007-11-09 | 2009-05-14 | Wms Gaming Inc. | Wagering game with enhanced player-selection bonus feature |
US7823883B1 (en) | 2008-02-29 | 2010-11-02 | Bally Gaming Inc. | Wheel indicator and ticket dispenser apparatus |
US8523662B2 (en) | 2009-11-13 | 2013-09-03 | Igt | Gaming system and method providing balanced paybacks with varying wager amounts |
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GB8333590D0 (en) * | 1983-12-16 | 1984-01-25 | Jpm Automatic Machines Ltd | Gaming/amusement machines |
GB8518678D0 (en) * | 1985-07-24 | 1985-08-29 | Bell Fruit Mfg Co Ltd | Gaming & amusement machines |
GB8524908D0 (en) * | 1985-10-09 | 1985-11-13 | Barcrest Ltd | Entertainment machines |
GB2183882B (en) * | 1985-12-05 | 1989-10-11 | Barcrest Ltd | Entertainment machines |
GB8612480D0 (en) * | 1986-05-22 | 1986-07-02 | Bell Fruit Mfg Co Ltd | Gaming & amusement machines |
-
1987
- 1987-03-06 GB GB878705323A patent/GB8705323D0/en active Pending
-
1988
- 1988-02-08 GB GB8802833A patent/GB2204436B/en not_active Expired - Lifetime
- 1988-03-03 EP EP88301874A patent/EP0281402A3/en not_active Withdrawn
Patent Citations (5)
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DE2809517A1 (en) * | 1977-03-21 | 1978-09-28 | Nsm Apparatebau Gmbh Kg | COIN OPERATED GAME DEVICE |
DE2734903B2 (en) * | 1977-08-03 | 1980-06-19 | Peter 8906 Gersthofen Eiba | Gaming machine with the possibility of winning |
DE2841699A1 (en) * | 1978-09-25 | 1980-04-10 | Paul Gauselmann | Electrically operated gaming machine - has separate game channels connected by switch to winning channels, and winnings are displayed |
DE2938307A1 (en) * | 1979-09-21 | 1981-04-09 | Paul 4992 Espelkamp Gauselmann | Dual mode pay-in amusement machine slot - has additional play facility allowing increased stake playing using event generator drum for double win |
GB2147442A (en) * | 1983-08-05 | 1985-05-09 | Jpm | Coin operated gaming or amusement machines |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991017529A1 (en) * | 1990-05-07 | 1991-11-14 | Th. Bergmann Gmbh & Co. | Roulette-type slot machine |
US6827646B2 (en) | 1994-09-23 | 2004-12-07 | Igt | Slot machine with an additional payout indicator |
EP1168261A2 (en) * | 2000-06-21 | 2002-01-02 | IGT-UK Limited | Entertainment machines |
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Also Published As
Publication number | Publication date |
---|---|
GB8802833D0 (en) | 1988-03-09 |
GB2204436A (en) | 1988-11-09 |
EP0281402A3 (en) | 1989-09-27 |
GB2204436B (en) | 1991-07-17 |
GB8705323D0 (en) | 1987-04-08 |
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