Patent ID: 7140407
Filing Date: 2006-11-28
Classification: A01G,B23B,Y10T

Abstract:
1. New design and configuration of tree stump cutting tooth and corresponding holding bracket, comprising: (a) a cutting tooth having a shank portion with a first wide notch formed on a first side of the shank, a second wide notch formed on a second side of the shank; and, (b) a holding bracket having protruding ridges formed on both opposite inside surfaces, so that said tooth can be set into said holding bracket in between leftmost and rightmost positions, as a result of the gap between the ridges and its corresponding wide notches on the tooth; wherein a narrow notch is formed on said first wide notch on the shank of said cutting tooth, and another narrow notch is formed on said second wide notch on the shank of said cutting tooth, and a smaller rib is formed on each of said protruding ridges on both opposite inside surfaces of said holding bracket, resulting in notch-in-notch combination structure for heavy-duty tree stump cutting use.