# US 12,180,012 B2 · Drive assembly for a conveyor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,180,012 B2 - Document ID: US12180012B2 - Status: Granted - Kind: B2 - Application number: 18/601,272 - Filed: 2024-03-11 - Published: 2024-08-15 - Granted: 2024-12-31 - Earliest claimed: 2019-05-20 - Assignees: Laitram, L.L.C. - Applicants: Laitram, L.L.C. - Inventors: Michael Hendrik DeGroot; Jake A. Mohan; Gerko Hulshof; David A. Kokx; Jeff Batchelder; Drew Downer; James R. Honeycutt, Jr. - Web page: https://patentgrep.com/patent/US12180012B2 ## CPC - B65G 45/16: with scraper biasing means - B08B 1/20: Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor - B65G 21/06: constructed to facilitate rapid assembly or dismantling - B65G 45/22: comprising fluid applying means - B08B 3/022: {Cleaning travelling work (B08B3/042 takes precedence)} - B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D) - B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL ## Abstract A drive assembly for conveyor belt comprises a pair of opposing end plates for mounting a conveyor drive and mounting assemblies for mounting at least one of a position limiter assembly, a scraper assembly, a combined limiter-scraper assembly and side guards. The scraper assembly and combined limiter-scraper assembly include a leaf spring that is selectively tensioned by a tensioning element on an end plate to bias the scraper blade of the scraper assembly into an operational position. ## Claims ### Claim 1 A drive assembly for a conveyor belt, comprising: a pair of opposing end plates; a drive mounted to and extending between the pair of opposing end plates; a first mounting assembly mounted to a first end plate, the first mounting assembly comprising a mounting portion for mounting the first mounting assembly to a bottom surface of a first end plate, a first bearing opening for receiving a first bearing of a roller limiter and a first saddle for receiving a base of a scraper assembly; and a second mounting assembly mounted to a second end plate, the second mounting assembly comprising a mounting portion for mounting the second mounting assembly to a bottom surface of a second end plate, a second bearing opening for receiving a second bearing of the roller limiter and a second saddle for receiving the base of the scraper assembly. ### Claim 2 (depends on 1) The drive assembly of claim 1, further comprising a roller limiter mounted between the first mounting assembly and the second mounting assembly. ### Claim 3 (depends on 1) The drive assembly of claim 1, further comprising a scraper assembly mounted between the first and second saddle. ### Claim 4 (depends on 3) The drive assembly of claim 3, wherein the scraper assembly comprises a scraper base mounting a scraper blade received in the first and second saddles. ### Claim 5 (depends on 4) The drive assembly of claim 4, wherein the base is substantially cylindrical and includes a first reduced-diameter neck portion configured to be received in the first saddle and a second reduced-diameter neck portion configured to be received in the second saddle. ### Claim 6 (depends on 4) The drive assembly of claim 4, further comprising a tensioning device for selectively moving the scraper assembly between an operational position and a cleaning position. ### Claim 7 (depends on 6) The drive assembly of claim 6, wherein the tensioning device is a leaf spring that engages an end plate. ### Claim 8 (depends on 1) The drive assembly of claim 1, further comprising a set of bolts for mounting the first and second mounting assembly to each end plate. ### Claim 9 (depends on 8) The drive assembly of claim 8, wherein each bolt includes a first set of threads for engaging a threaded opening in the mounting portion and a second set of threads for engaging a threaded opening in the bottom surface of a corresponding end plate. ### Claim 10 (depends on 8) The drive assembly of claim 8, wherein each bolt includes a sealing washer. ### Claim 11 A mounting assembly for integrating a position limiter and scraper assembly at a drive end of a conveyor frame comprising a pair of spaced-apart end plates, comprising: a mounting portion for mounting the first mounting assembly to a bottom surface of a first end plate; a bearing opening for receiving a bearing of a roller limiter; and a front saddle for receiving a base of a scraper assembly. ### Claim 12 (depends on 11) The drive assembly of claim 11, wherein the mounting portion includes at least one opening for receiving a bolt. ### Claim 13 (depends on 12) The drive assembly of claim 12, wherein the opening is threaded to engage a set of threads on the bolt. ### Claim 14 (depends on 11) The drive assembly of claim 11, further comprising a set of bolts for mounting the mounting assembly to the bottom surface. ### Claim 15 (depends on 14) The drive assembly of claim 14, wherein each bolt includes a first set of threads for engaging a threaded opening in the mounting portion and a second set of threads for engaging a threaded opening in the bottom surface of a corresponding end plate. ### Claim 16 (depends on 14) The drive assembly of claim 14, wherein each bolt includes a sealing washer. ### Claim 17 (depends on 11) The drive assembly of claim 11, further comprising a bearing mounted in the bearing opening.