Stump grinder

Details Stump grinder Stump grinder

1996-09-30

1998-08-18

Bray, W. Donald

Woodworking

Special-work machine

Stump removing

144334, 144218, 37302, 24110174, A01G 2306

Patent

active

057946736

ABSTRACT:
A cutting head (20) is mounted on the outer end of a boom structure of a self-propelled machine, such as an excavator. The cutting head housing has a vertically oriented rotary cutter wheel (48) mounted on a side portion thereof. Side and top portions of the wheel (48) are protected by a shroud (56), which has generally conical side members (72, 80). The members (72, 80) strengthen the shroud (56), provide cutting depth control, and assist the operator in positioning the cutter wheel (48) on a stump. The wheel (48) and shroud (56) are laterally offset from a rearward projection (88) of the housing. A double heel rack (92, 94) is formed on the free outer end of the projection (88). The upper leg (92) of the rack cooperates with a thumb (28) to grip objects. The lower leg is used for stabilizing the vehicle. The rack (92, 94) also functions as a rake.

REFERENCES:
patent: 4271879 (1981-06-01), Shivers, Jr. et al.
patent: 4530385 (1985-07-01), York
patent: 4615121 (1986-10-01), Hakansson
patent: 4769977 (1988-09-01), Milbourn
patent: 4848423 (1989-07-01), Yoder
patent: 5090287 (1992-02-01), Chezem
patent: 5158126 (1992-10-01), Lang
patent: 5303471 (1994-04-01), Liberatoscioli
patent: 5329752 (1994-07-01), Milbourn
patent: 5355918 (1994-10-01), Lang
patent: 5408814 (1995-04-01), Milbourn
patent: 5445561 (1995-08-01), Elmer

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