Stump grinding apparatus

A grinding apparatus having a grinding wheel, said grinding wheel comprising:

• a rotational member, said rotational member being adapted for mounting to the grinding apparatus, said rotational member including an annular arcuate mounting surface and being adapted to be driven about a drive axis and moved about generally horizontal and vertical pivot axes;
• and
• a plurality of grinding members mounted to said annular arcuate mounting surface, each of said grinding members having a plurality of distal cutting tips and a first pair of opposed spaced apart arcuate grinding edges and a second pair of opposed spaced apart arcuate grinding edges disposed between said cutting tips, said second pair of spaced apart grinding edges of a respective grinding member being generally orthogonal to said first grinding edges of said respective grinding member, and said grinding members for simultaneously cutting in generally horizontal and vertical planes when said rotatable member is driven about said drive axis and moved about said pivot axes.

A grinding apparatus having a grinding wheel, said grinding wheel comprising:

• a rotatable member being adapted for mounting to the grinding apparatus, said rotatable member including an annular arcuate mounting surface and being adapted to be driven about a drive axis and moved about generally horizontal and vertical pivot axes;
• and
• a plurality of grinding members mounted to said annular arcuate mounting surface, each of said grinding members having a plurality of spaced apart pointed distal ends and a planar mounting surface opposed from said pointed distal ends for mounting to said rotatable member, and said cutting tips for simultaneously cutting in generally horizontal and vertical planes when said rotatable member is driven about said drive axis and moved about said pivot axes.

A grinding apparatus having a rotatable member and drivers for rotating the rotatable member about a drive axis and for moving the rotatable member about generally vertical and horizontal pivot axes, the rotatable member having a plurality of grinding members, each of said grinding members comprising:

• a body being adapted to mount and to be secured to the rotatable member, said body including a plurality of spaced apart pointed distal ends and a planar mounting surface for mounting to the rotatable member, and said distal ends defining cutting tips for simultaneously cutting in generally horizontal and vertical planes when the drivers rotate the rotatable member about its drive axis and move the rotatable member about the pivot axes.