Patent ID: 6751897
Filing Date: 2004-06-22
Classification: E02F

Abstract:
A lip assembly comprising:(a) a U-shaped lip having (i) an upper surface, (ii) a lower surface, (iii) a front portion having projections and valleys, (iv) a rear portion, (v) a first plurality of holes disposed between the front portion and the rear portion and extending from the upper surface to the lower surface, (vi) a second plurality of holes disposed at the front portion, (vii) a plurality of ribs at the lower surface of the lip, wherein each hole of the first plurality of holes is disposed between a pair of ribs to inhibit the lateral movement of a tooth assembly disposed between the pair of ribs, and (viii) a plurality of lip shrouds respectively disposed on the projections of the front portion of the lip; and (b) a plurality of tooth assemblies extending away from the lip and respectively coupled to the lip via the first plurality of holes.