Abstract:
The invention is an apparatus for initiating a wellbore perforator comprising a first firing head for generating a first explosive signal when a first actuation signal is applied to the first firing head, a second firing head for generating a second explosive signal when a second actuation signal is applied to the second firing head, a first means for transferring the first explosive signal to shaped charges in the perforator including a first bulkhead interposed between the shaped charges and the first means for preventing transfer of low order initiation of the first means to the shaped charges, and a second means for transferring the second explosive signal to the shaped charges including a second bulkhead interposed between the shaped charges and the second means for preventing transfer of low order initiation of the second means to the shaped charges.
Abstract:
The invention is a firing circuit for an exploding bridgewire explosive detonator which is activated only by application of an alternating current of a preselected frequency. The firing circuit comprises a bandpass filter, a voltage multiplier, and a discharge circuit.The invention can be configured to selectively detonate a plurality of exploding bridgewire detonators by assembling a plurality of firing circuits for each exploding bridgewire, each firing circuit having a bandpass filter with a different preselected frequency.
Abstract:
An embodiment of the present invention provides a bonus scheme associated with a feature event, or part thereof, which provides a plurality of feature games. With reference to the embodiment illustrated in FIG. 4, a first feature event is conducted at Steps S3 to S5, the outcome of which determines a feature event win value. At Step S7 the feature event win value is compared to a threshold value and, if the gaming process win value is less than, or equal to the threshold value, the player becomes eligible to trigger a second feature event at Step S9.
Abstract:
Gaming apparatus, e.g. an Electronic Gaming Machine (EGM) (1), includes a controller (2) for implementing e.g. a slot-machine game, a poker game or the like. The EGM (1) displays a gaming image on a display (5), e.g. virtual symbol reels or card hands, and receives player instructions via an input (6) or the like, e.g. to spin the reels or manage the cards. The EGM (1) includes a guarantee feature in which an event is guaranteed to trigger if a monitored event (e.g. of the same type as the guaranteed event) does not occur within a set amount of gameplay. A guarantee indicator (9), e.g. a numerical countdown or gauge, indicates the remaining amount of gameplay required before the guarantee feature triggers. The monitored and/or guaranteed event may be a win event or a feature event, e.g. the triggering of a bonus round, free game or the like.
Abstract:
An assembly and method for treating or otherwise improving an atmosphere contained within an enclosed space. The enclosed space can be a container such as a bag or other housing for equipment, food and/or suitable material. Ozone is generated within an atmosphere that is exposed to the material. The generated ozone is mixed with the atmosphere. At least a portion of the generated ozone is then removed from the mixed atmosphere. The assembly and method can be used to treat contaminated sports equipment and the like, as well as to treat food storage atmospheres, such as those exposed to fresh fruits and vegetables.
Abstract:
Gaming apparatus (1), e.g. an Electronic Gaming Machine (EGM), includes a controller (2) for implementing e.g. a slot-machine game, casino game or the like. The controller (2) displays a suitable gaming image on a screen (6), e.g. virtual symbol reels or card hands, and a player interacts with the EGM 1 through buttons (8) or the like, e.g. to spin the reels or deal cards. The apparatus includes award means for awarding a player event points during the course of play, accumulator means for accumulating the awarded event points, and purchasing/selection means for allowing a player to purchase a game event using the accumulated event points. These game events may provide the player with the chance of higher returns or the like, and may include free plays, high return games, a jackpot game and the like.
Abstract:
An embodiment of the present invention provides a bonus scheme associated with a gaming process that is a feature event. With reference to the embodiment illustrated in FIG. 3, a gaming process is conducted at Steps S3 to S5, the outcome of which determines a gaming process win value. At Step S7 the gaming process win value is compared to a threshold value and, if the gaming process win value is less than, or equal to the threshold value, a bonus prize is awarded to the player at Step S9.