Woodworking – Special-work machine
Patent
1991-04-23
1991-07-23
Bray, W. Donald
Woodworking
Special-work machine
37 2R, 144208C, 144231, 144241, B02C 104
Patent
active
050344072
ABSTRACT:
A portable tree stump remover, sufficiently light weight to be hand held by an operator, has an engine-driven cutting device with grinding teeth that rotate through a circular path. The cutting device is mounted to a base element that regulates the penetration depth of the grinding teeth into the tree stump and engages the tree stump when a predetermined penetration depth has been achieved.
REFERENCES:
patent: 3911979 (1975-10-01), Rousseau
patent: 4530385 (1985-07-01), York
patent: 4621668 (1986-11-01), York
patent: 4681145 (1987-07-01), York
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