Cutting shaft for vertical stump grinder
AssigneeNew River Equipment
InventorsJames J. Paumier, Todd D. Mattison, David B. Mattison
Life of this patent
Estimating the term…
Abstract
The invention relates to a stump grinder that rotates about a vertical axis and includes an improved cutting shaft. The improved cutting shaft includes a base portion attached to a drive source, and a grinding shaft attached to and extending downwardly from the base portion. The grinding shaft includes replaceable cutting teeth and a replaceable grinding tip.
Claims20
An improved cutting shaft for a vertical stump grinder, said cutting shaft including:
- a base portion attached to a drive source;
- a grinding shaft attached to and extending downwardly from said base portion;
- and
- at least one cutting tooth removably attached to said grinding shaft.
An improved cutting shaft for a vertical stump grinder, said cutting shaft including:
- a base portion attached to a drive source;
- a grinding shaft attached to and extending downwardly from said base portion;
- and
- a grinding tip removably attached to a bottom end of said grinding shaft.
An improved cutting shaft for vertical stump grinder, said cutting shaft including:
- a base portion attached to a drive source;
- a grinding shaft attached to and extends downwardly from said base portion, wherein said grinding shaft includes at least two interlocking segments;
- and
- each one of said segments include at least one backer support and at least one cutting portion.
Dependencies are inferred from the claim text.