Patent ID: 8550881

Claim:
A vane of a throwing wheel apparatus, comprising: a first end; a second end; and a particle throwing portion extending between the first and second ends and including a first throwing face, a second throwing face, and two side edges, wherein each of the side edges extend substantially parallel to one another and includes a locking member adapted to be detachably coupled to a mounting element of the throwing wheel apparatus, wherein each locking member includes a first surface extending from the first end towards the second end, the first surface being tapered along a first direction at a first angle and a second surface extending from the first end towards the second end, the second surface being tapered along the first direction at second angle, wherein the first direction is from the first end towards the second end of the vane, and wherein the side edges define a width smaller than a predetermined distance between first and second mounting elements of the throwing wheel apparatus so that when coupled to the mounting elements a gap is present on both sides of the vane.