# US 11,111,079 B2 · Draper belt having improved edge durability > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,111,079 B2 - Document ID: US11111079B2 - Status: Granted - Kind: B2 - Application number: 16/862,711 - Filed: 2020-04-30 - Published: 2021-04-15 - Granted: 2021-09-07 - Earliest claimed: 2015-09-30 - Assignees: ContiTech Transportbandsysteme GmbH - Applicants: ContiTech Transportbandsysteme GmbH - Inventors: Alan C. Echtenkamp - Web page: https://patentgrep.com/patent/US11111079B2 ## CPC - B65G 15/56: with edge-protecting or reinforcing means - A01D 57/20: with conveyor belts - A01D 61/002: {transversal conveying devices} - A01D 61/02: Endless belts - B65G 15/34: with reinforcing layers, e.g. of fabric - B65G 15/42: having ribs, ridges, or other surface projections - B65G 2201/0202: Agricultural and processed food products - B65G 2201/0211: Fruits and vegetables - 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) - A01D: HARVESTING; MOWING ## Abstract A draper belt (8) having a carry layer (14), a pulley cover layer (13), and a reinforcing layer (12) which is situated between the carry layer (14) and the pulley cover layer (13). The carry layer (14) includes a plurality of cleats (7) which are reinforced with reinforcing rods (15). The draper belt (8) has a first edge section (16), a second edge section (17), and a center section (18) located between the first edge section (16) and the second edge section (17). The first edge section (16) and the second edge section (17) of the draper belt (8) each have a modulus that is at least three times greater than the modulus of the center section (18). ## Claims ### Claim 1 A draper belt comprising: a carry layer on a first side of the draper belt, wherein the carry layer includes a plurality of cleats, wherein the cleats are reinforced with reinforcing rods; a pulley cover layer on a second side of the draper belt; a reinforcing layer which is situated between the carry layer and the pulley cover layer, and an edge section of the belt; a center section of the belt, and wherein the pulley cover layer is narrower in the edge section than in the center section; an edge fabric reinforcement of the edge section has a higher belt modulus than a center fabric reinforcement of the center section; and the edge fabric reinforcement is configured to enhance adhesion between rubber in the belt and the edge fabric reinforcement by having been treated in a resorcinol formaldehyde latex (RFL) dip. ### Claim 2 (depends on 1) The belt of claim 1, further comprising a second edge section adjacent the center section. ### Claim 3 (depends on 1) The belt of claim 1, wherein the edge section has a belt modulus at least three times greater than a belt modulus of the center section. ### Claim 4 (depends on 1) The belt of claim 1, wherein the center fabric reinforcement is comprised of polyethylene terephthalate (PET) and the edge fabric reinforcement is comprised of polyethylene naphthalate (PEN). ### Claim 5 (depends on 1) The belt of claim 1, wherein the edge fabric reinforcement is tire cord. ### Claim 6 (depends on 1) The belt of claim 1, wherein the edge section has a width in the range of 10 percent to 12 percent of a total width of the draper belt and the center section has a width in the range of 76 percent to 80 percent of the total width of the draper belt. ### Claim 7 (depends on 1) The belt of claim 1, wherein the edge fabric reinforcement has a thickness at least three times greater than a thickness of the center fabric reinforcement. ### Claim 8 (depends on 1) The belt of claim 1, wherein the carry layer is narrower in the edge section than in the center section. ### Claim 9 A draper belt comprising: a carry layer, wherein the carry layer includes a plurality of cleats, wherein the cleats are reinforced with reinforcing rods; a reinforcing layer which is situated between the carry layer and the pulley cover layer, and an edge section of the belt; a center section of the belt, wherein the edge section has an edge belt modulus greater than a center belt modulus of the center section and the carry layer is narrower in the edge section than in the center section; and an edge fabric reinforcement within the edge section is configured to enhance adhesion between rubber in the belt and the edge fabric reinforcement. ### Claim 10 (depends on 9) The draper belt of claim 9, further comprising a pulley layer on an opposite side of the belt from the carry layer and wherein the pulley layer is narrower in the edge section than in the center section. ### Claim 11 (depends on 9) The draper belt of claim 9, wherein the edge fabric reinforcement is comprised of one of polyester tire cord, cord fabric, or monofilament fabric. ### Claim 12 (depends on 9) The draper belt of claim 9, wherein the edge section is between 3 inches (76.2 mm) and 12 inches (304.8 mm) wide. ### Claim 13 (depends on 9) The draper belt of claim 9, wherein the edge fabric reinforcement is a triple layer of fabric reinforcement and the triple layer of fabric reinforcement is at least three times the thickness of the center fabric reinforcement used in the center section. ### Claim 14 (depends on 9) The draper belt of claim 9, wherein the edge fabric reinforcement is a quadruple layer of fabric reinforcement. ### Claim 15 A draper belt comprising: a carry layer that includes a plurality of cleats reinforced with reinforcing rods, a pully cover layer and a reinforcing layer situated between the carry layer and the pulley cover layer; a center section of the draper belt having a center belt modulus based on a center fabric reinforcement; and an edge section of the draper belt having an edge belt modulus based on an edge fabric reinforcement and wherein the edge belt modulus is greater than the center belt modulus and wherein the edge fabric reinforcement is at least partially located in the pulley cover layer and the pulley cover layer is narrower in the edge section than in the center section; and the edge fabric reinforcement is configured to enhance adhesion between rubber in the belt and the edge fabric reinforcement by having been treated in a resorcinol formaldehyde latex (RFL) dip. ### Claim 16 (depends on 15) The draper belt of claim 15, wherein the edge fabric reinforcement is thicker than the center fabric reinforcement. ### Claim 17 (depends on 15) The draper belt of claim 15, wherein the edge section includes an edge pulley cover layer and the center section includes a center pulley cover layer and the edge pully cover layer is thinner than the center pulley cover layer. ### Claim 18 (depends on 15) The draper belt of claim 15, wherein the edge fabric reinforcement has a higher denier than the center fabric reinforcement.