Patent ID: 6014826
Filing Date: 2000-01-18
Classification: E02F,E21C

Abstract:
Excavation apparatus including(a) a frame including means engaging the ground to enable said frame to move over the ground;(b) a plurality of tooth sleeves attached to and extending away from said frame, each of said tooth sleeves including an aperture formed therein;(c) a plurality of teeth each mounted in one of said apertures and includinga cylindrical body having a longitudinal axis (S), said apertures each being shaped and dimensioned to slidably receive said cylindrical body and permit said body to rotate therein, anda bit attached to said body and extending outwardly away from said one of said apertures;(d) a slot formed in each of said apertures, having a longitudinal axis generally parallel to said longitudinal axis of said cylindrical body, and extending away from said cylindrical body of one of said teeth mounted in said aperture; and,(e) pin means slidably inserted in each of said slots and having a longitudinal axis parallel to said longitudinal axis of said slot, said pin means engaging said cylindrical body of one of said teeth inserted in said one of said apertures to prevent the rotation in said one of said apertures of said one of said teeth.