Abstract: A device for optimizing coal-air proportions entering a furnace is disclosed. The invention generally comprises a burner nozzle having two ends and an outer tube forming a perimeter of the burner nozzle; an entry spool having a rear wall and defining an inlet port at one of the ends of the burner nozzle; an inner tube formed within the burner nozzle; an annular blade chamber defined between the outer tube and the inner tube; and, a blade formed within the blade chamber configured as an extension of the rear wall of the entry spool, the blade twisted to form a spiral around the inner tube, wherein fuel particles can be separated from a primary air stream and collected on the blade to form a coal-concentrated stream for entry into the furnace. As a result, three separate streams are injected into the furnace, thereby minimizing NOx through the concentration of solid fuel.

Abstract: The present invention provides a torquer for maneuvering a medical guidewire during endovascular surgical procedures or the like, which can be easily positioned and re-positioned along the length of the wire. A clamp-like device is formed with a top arm and a bottom arm connected to one another by means of a flap hinge. A horizontal slit is defined within the flap hinge, and a vertical slit is defined on a clamping tongue positioned at the top distal end of the top arm, such that the torquer is placed onto the guidewire and snapped into place with the guidewire penetrating the vertical slit. A wire channel means is further defined between the two arms to hold the guidewire within the torquer.