Patent ID: 7150300

Claim:
A stump grinding machine that is configured to mount to a powered vehicle, said stump grinding machine being operable to grind a stump and comprising: a mounting frame configured to connect to the vehicle and to extend generally outwardly therefrom, said mounting frame extending outward from the vehicle and being supported entirely at the vehicle; a disc mount supported at said mounting frame; and a grinding disc rotatably mounted to said disc mount and rotatable about a disc axis, said grinding disc having a plurality of grinding teeth on a face of said disc, said grinding disc being rotatably drivable by a rotational drive device connected to said grinding disc and to a power source of the powered vehicle, said grinding disc being rotatably driven and being movable in a direction generally along said disc axis and toward and into engagement with a stump to grind at least a portion of the stump as said grinding disc is moved axially at least partially through the stump, said grinding disc including a plurality of depth guides positioned on said face of said grinding disc, said depth guides being positioned on said face of said grinding disc at different locations than said grinding teeth, said depth guides limiting the depth of cut of said grinding teeth as said grinding disc is rotated and engaged with a stump.