US 12,227,918 B2
Dipper lattice frame and wearable structural liner
James G. Jamilosa, Waipahu, HI (US)
Assigned to Caterpillar Global Mining LLC, Tucson, AZ (US)
Filed by Caterpillar Global Mining LLC, Tucson, AZ (US)
Filed on Dec. 31, 2020, as Appl. No. 17/139,505.
Prior Publication US 2022/0205213 A1, Jun. 30, 2022
Int. Cl. E02F 3/407 (2006.01); E02F 3/30 (2006.01); E02F 9/28 (2006.01)
CPC E02F 3/4075 (2013.01) [E02F 3/308 (2013.01); E02F 9/2825 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dipper of a work machine, the dipper comprising:
a body including a plurality of walls;
a rear door;
a bowl fixed to the body having a lattice frame formed by a plurality of openings extending through the lattice frame; and
a liner formed from a plurality of plates, each plate having a top surface that faces an interior of the bowl that is configured to receive material and a bottom surface opposite the top surface, each plate being welded to the lattice frame from the bottom surface of the plate to form a cavity, the cavity having a single open side due to the liner closing a top end of the cavity and the lattice frame defining an open bottom end of the cavity.