Split wheel stump cutter with replaceable tooth blocks and...

Details Split wheel stump cutter with replaceable tooth blocks and... Split wheel stump cutter with replaceable tooth blocks and...

2005-04-12

2005-04-12

Ostrager, Allen (Department: 3725)

Woodworking

Rotary cutter

Disk cutter including side attached, edge cutting bit

C144S241000

Reexamination Certificate

active

06877535

ABSTRACT:
A stump grinding apparatus having a split cutting wheel includes several replaceable cutter blocks secured to the periphery of the wheel. One or more replacement teeth are removably anchored in holes in each block and may also be mounted on holes in the side of the split wheel as well. The teeth are typically provided with a hardened cutting face, and are reinforced with an extension projecting back from the face. Each tooth includes a shank which fits into one of the holes. The shank contains a groove which receives a spring clip or a spring pin for securing the tooth in the hole. The wheel periphery contains individual recesses that are shaped to receive the cutter blocks. Each block includes means for insuring alignment of the block in the corresponding recess. The block is wedged tightly into its recess to reduce the likelihood of accidental removal.

REFERENCES:
patent: 4827995 (1989-05-01), Wilson
patent: 4974649 (1990-12-01), Manning
patent: 5005622 (1991-04-01), Beach et al.
patent: 5135035 (1992-08-01), Mills
patent: 5529439 (1996-06-01), Werner et al.
patent: 5743314 (1998-04-01), Puch
patent: 6024143 (2000-02-01), Ritchey
patent: 6213931 (2001-04-01), Twardowski et al.
patent: 6325574 (2001-12-01), Treige
patent: 6698477 (2004-03-01), Bennington

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