Abstract: A gaming system is provided. The gaming system may include a game display configured to display a game interface including a matrix having a plurality of rows including a plurality of matrix positions and a processor configured to determine a number of wild symbols currently displayed in the matrix, in response to determining the number of wild symbols currently displayed in the matrix exceeds a threshold number, determine a number of spin credits, in response to the number of spin credits being greater than zero, determine a weighting factor defining a probability for displaying a symbol in a respective matrix position, apply the determined weighting factors to respective lookup tables for each matrix position not currently displaying a wild symbol, and determine, for each matrix position not currently displaying a wild symbol, a symbol to display.

Abstract: Techniques and systems for providing games of chance with multiple levels of persistent features are disclosed. Some example systems include scatter prize indicators that are each associated with different symbol positions of a game of chance. When a scatter symbol is selected for a given symbol position, the scatter prize indicator associated therewith may be upgraded; selection of a sufficient number of symbol positions may result in a feature game mode being activated. During feature game mode play, scatter symbols are retained after each play of the game until either sufficient consecutive plays occur without any scatter symbols being obtained or until all symbol positions have scatter symbols. In the latter case, the scatter prize indicators are upgraded and play continues. In the former case, the feature game mode concludes. Various enhancements may be triggered based on the number of times that the feature game mode has been activated.

Abstract: A powered handler for handling a workpiece, comprising: a body extending between a first and a second end; an input device adjacent the first end; a handling implement adjacent the second end, the handling implement operatively connected to the input device and operable to handle the workpiece; and a suspender having a proximate end mounted to the body at at least one pivot of the suspender defining a pitch axis of the powered handler, the body pivotable relative to the suspender about the pitch axis, the at least one pivot disposed between the input device and the handling implement and displaceable relative to the body to a balanced position located between a first and a second position closer to the second end than the first position, the suspender having a distal end spaced upwardly from the body for mounting the suspender to suspend the body from the suspender.

Abstract: A manually operated pneumatic rock drill positioner for mining shaft wall boring, said positioner comprising: an articulated boom having one end for releasable coupling to a mobile ground platform and another end opposite said one end thereof; a rigid elongated drill turret defining a main body with an exposed outer wall, an inner wall opposite said outer wall, and first side edge wall and second side edge wall opposite said first side edge wall, and first end and second end opposite said first end, a lengthwise rail member integrally mounted to said turret outer wall; a carriage slidingly engaging said rail member, said carriage for slidingly carrying a pneumatic drill head over said turret exposed outer wall for reciprocating motion thereof between said first end and second end thereof; drive means for power actuating said carriage sliding motion along said rail member; a cradle member releasably anchored to said boom another end and defining a well sized and shaped for releasable engagement by an intermedi

Abstract: A manually operated pneumatic rock drill positioner for mining shaft wall boring, said positioner comprising: an articulated boom having one end for releasable coupling to a mobile ground platform and another end opposite said one end thereof; a rigid elongated drill turret defining a main body with an exposed outer wall, an inner wall opposite said outer wall, and first side edge wall and second side edge wall opposite said first side edge wall, and first end and second end opposite said first end, a lengthwise rail member integrally mounted to said turret outer wall; a carriage slidingly engaging said rail member, said carriage for slidingly carrying a pneumatic drill head over said turret exposed outer wall for reciprocating motion thereof between said first end and second end thereof; drive means for power actuating said carriage sliding motion along said rail member; a cradle member releasably anchored to said boom another end and defining a well sized and shaped for releasable engagement by an intermedi

Abstract: A self-adjusting hand-held ergonomic holder for jackhammer for manual use by an operator in chipping a hardened ground surface along a continuously variable chipping strike angle. The holder includes a rigid main frame with an upper load bearing handle and a cradle receiving a pneumatically powered hammer with a reciprocatable elongated pneumatically controlled bit operatively mounted to one end thereof. A coil spring assembly associated with the cradle dampens vibrations generated by the jackhammer.