# US 2020/0399850 A1 · Compactor tooth, base therefor and related method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0399850 A1 - Document ID: US20200399850A1 - Status: Published application - Kind: A1 - Application number: 16/948,151 - Filed: 2020-09-04 - Published: 2020-12-24 - Earliest claimed: 2017-07-31 - Assignees: Bernard McCartney Limited - Applicants: Bernard McCartney Limited - Inventors: Neil McCartney - Web page: https://patentgrep.com/patent/US20200399850A1 ## CPC - E02D 3/0265: {Wheels specially adapted therefor; Cleats for said wheels} - B22D 19/00: Casting in, on, or around objects which form part of the product (B22D23/04 takes precedence; alumino-thermic welding B23K23/00; coating by casting molten material on the substrate C23C6/00) - E02F 9/2816: {Mountings therefor} - E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)} - B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22) - E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00) ## Abstract A base for forming a tooth for a wheel of a landfill compactor vehicle is disclosed. The tooth comprises said base and a cap of a cast metal material formed on said base. The base comprises a block, a core and a lip. The block is adapted to be mounted on said landfill compactor vehicle wheel. The core, which is disposed on a cap-facing side of the base, is for receiving molten metal material during a casting operation and remains embedded in the cap. The lip is disposed around a periphery of the base and is also for receiving said molten metal material, in cooperation with the core. The lip at least partially surrounds the cap-facing side and the core and helps in reducing or preventing imperfections, such as cracks, which could otherwise form at the interface between the base and the cap following the casting operation. ## Claims ### Claim 1 A landfill compactor vehicle wheel tooth base, the base comprising: a block adapted to be mounted on said landfill compactor vehicle wheel; a core disposed on a first side of said base; and a trench disposed on the first side of the base and extending around the core. ### Claim 2 (depends on 1) The base according to claim 1, wherein at least part of the core projects above the trench. ### Claim 3 (depends on 1) The base according to claim 1, wherein the trench is generally rectangular in cross-section. ### Claim 4 (depends on 1) The base according to claim 1, wherein the trench is defined by a lip. ### Claim 5 (depends on 4) The base according to claim 4, wherein the lip extends entirely around the core. ### Claim 6 (depends on 5) The base according to claim 5, wherein the lip surrounds the trench. ### Claim 7 (depends on 4) The base according to claim 4, wherein at least part of the core projects above an upper surface of the lip. ### Claim 8 (depends on 1) The base according to claim 1, wherein the first side of the base is a cap-facing side of the base. ### Claim 9 (depends on 1) The base according to claim 1, wherein the core comprises a retention feature. ### Claim 10 (depends on 9) The base according to claim 9, wherein the retention feature defines an aperture, at least part of the aperture is disposed above the upper surface of the lip, and wherein a portion of a cap is receivable through the opening to secure the cap to the base. ### Claim 11 (depends on 9) The base according to claim 9, wherein a cap is securable around the retention feature. ### Claim 12 (depends on 1) The base according to claim 1, wherein the core and trench are engageable with a cap of the tooth. ### Claim 13 A tooth for a wheel of a landfill compactor vehicle, the tooth comprising: a base comprising: a block adapted to be mounted on said landfill compactor vehicle wheel; a core disposed on a first side of said base; and a trench disposed on the first side of the base and extending around the core; and a cap, wherein the cap is secured to the base. ### Claim 14 (depends on 13) The tooth according to claim 13, wherein the cap is made of a metal material cast onto at least the core and the trench of the base. ### Claim 15 (depends on 13) The tooth according to claim 13, wherein the core comprises a retention feature. ### Claim 16 (depends on 15) The tooth according to claim 15, wherein the cap is secured around the retention feature. ### Claim 17 (depends on 15) The tooth according to claim 15, wherein the retention feature defines an aperture, at least part of the aperture is disposed above the trench, and wherein a portion of the cap passes through the aperture to secure the cap to the base. ### Claim 18 A landfill compactor vehicle wheel tooth base, the base comprising: a block adapted to be mounted on said landfill compactor vehicle wheel; a core disposed on a first side of said base; and a lip disposed on the first side of the base and extending around a perimeter of the first side, the lip surrounding the core. ### Claim 19 (depends on 18) The base according to claim 18, wherein the lip defines a trench on the first side of the base between the lip and the core. ### Claim 20 (depends on 19) The base according to claim 19, wherein the trench surrounds the core.