# US 10,246,850 B2 · Expanding material box for equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,246,850 B2 - Document ID: US10246850B2 - Status: Granted - Kind: B2 - Application number: 15/660,716 - Filed: 2017-07-26 - Published: 2017-11-09 - Granted: 2019-04-02 - Earliest claimed: 2012-02-13 - Assignees: Meyer Products, LLC - Applicants: Meyer Products, LLC - Inventors: Thomas A. Miller - Web page: https://patentgrep.com/patent/US10246850B2 ## CPC - E02F 3/815: Blades; Levelling {or scarifying} tools {(E02F3/40 takes precedence)} - E01H 5/065: {characterised by the form of the snow-plough blade, e.g. flexible, or by snow-plough blade accessories (E01H5/061, E01H5/063 take precedence)} - E02F 3/8155: {provided with movable parts, e.g. cutting discs, vibrating teeth or the like} - E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00) - E01H: STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING {OR PREVENTING} FOG IN GENERAL {CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS}(cleaning in general B08B) ## Abstract A material box can telescope between larger and smaller widths to accommodate legal requirements of traveling down the road, making traveling between job sites easier and safer than conventional, unadjustable material boxes. The material box can be used in a wide configuration to plow a wider area, such as empty parking lots, cutting down work time. When cars are present, the material box can be made narrow to accommodate for the vehicles while still being an effective material moving device. ## Claims ### Claim 1 A material moving assembly, comprising: a center blade assembly having a center main blade, said center main blade having a curved plate structure, said center main blade having a pair of lateral ends; at least one channel attached to a back side of said curved plate structure of said center main blade, said at least one channel extending to at least one of said pair of lateral ends of said center main blade, said at least one channel having a C-shaped cross sectional shape, said at least one channel and said center main blade defining a first gap at a lateral end of said at least one channel; and at least one wing blade assembly having a wing blade, wherein said at least one wing blade assembly includes a wing blade slide that is slidably engaged with said at least one channel to adjust the width of the material box, whereby said wing blade is slidable in transverse directions, each said wing blade slide having a cross sectional shape which mates with and slides within said C-shaped cross sectional shape of a corresponding said at least one channel, and each said wing blade having a curvature that allows transverse sliding of the wing blade relative to the center main blade. ### Claim 2 (depends on 1) The material moving assembly of claim 1, further comprising at least one slide disposed along the wing blade slide, the at least one slide reducing friction between said at least one channel and the wing blade slide. ### Claim 3 (depends on 1) The material moving assembly of claim 1, wherein said center main blade includes a front center cutting edge. ### Claim 4 (depends on 1) The material moving assembly of claim 1, further comprising at least one wing upper gusset on each wing blade and at least one lower cutting edge gusset on each wing blade. ### Claim 5 (depends on 4) The material moving assembly of claim 4, wherein said at least one wing upper gusset and said wing blade slide define a wing slide gap therebetween. ### Claim 6 (depends on 1) The material moving assembly of claim 1, further comprising a sliding pad attached to said back side of said center main blade, said sliding pad and said at least one channel defining at least a portion of said first gap therebetween. ### Claim 7 (depends on 1) The material moving assembly of claim 1, further comprising a mount adapted to attach the material box assembly to a vehicle. ### Claim 8 (depends on 7) The material moving assembly of claim 7, wherein said mount is a mounting plate. ### Claim 9 (depends on 1) The material moving assembly of claim 1, wherein said at least one channel includes a pair of opposed lips extending toward each other. ### Claim 10 (depends on 1) The material moving assembly of claim 1 wherein said first gap is defined between said back side of said center main blade and said at least one channel, and wherein said wing blades are positioned behind said center main blade and are slidable within said first gap between said center main blade and said at least one channel. ### Claim 11 A material moving assembly, comprising: a center blade assembly having a center main blade, said center main blade having a curved plate structure, said center main blade having a pair of lateral ends, said center main blade including a back drag blade defining an edge of said center main blade; at least one channel attached to a back side of said curved plate structure of said center main blade, said at least one channel extending to at least one of said pair of lateral ends of said center main blade, said at least one channel having a C-shaped cross sectional shape, said at least one channel and said center main blade defining a first gap at a lateral end of said at least one channel; and at least one wing blade assembly having a wing blade, wherein said at least one wing blade assembly includes a wing blade slide that is slidably engaged with said at least one channel to adjust the width of the material box, whereby said wing blade is slidable in transverse directions, each said wing blade slide having a cross sectional shape which mates with and slides within said C-shaped cross sectional shape of a corresponding said at least one channel, and each said wing blade having a curvature that allows transverse sliding of the wing blade relative to the center main blade. ### Claim 12 (depends on 11) The material moving assembly according to claim 11, wherein said center main blade has a first end, a second end, and a degree of curvature defined between said first end and said second end. ### Claim 13 (depends on 12) The material moving assembly according to claim 12, wherein said degree of curvature is in a range of between 70 to 160 degrees. ### Claim 14 (depends on 13) The material moving assembly according to claim 13, wherein said degree of curvature in a range of between 115 to 145 degrees. ### Claim 15 (depends on 11) The material moving assembly according to claim 11, further comprising a mounting plate adapted to attach said material box assembly to a vehicle. ### Claim 16 (depends on 11) The material moving assembly according to claim 11, wherein said back drag blade is attached to a front side of said center main blade. ### Claim 17 (depends on 11) The material moving assembly according to claim 11, wherein said back drag blade and said center main blade are formed from the same material and further comprises a front center cutting edge. ### Claim 18 (depends on 11) The material moving assembly according to claim 11, wherein said back drag blade and said center main blade are formed from different materials and further comprises a front center cutting edge. ### Claim 19 (depends on 11) The material moving assembly according to claim 11, wherein said at least one channel includes a pair of opposed lips extending toward each other. ### Claim 20 (depends on 11) The material moving assembly of claim 11 wherein said first gap is defined between said back side of said center main blade and said at least one channel, and wherein said wing blades are positioned behind said center main blade and are slidable within said first gap between said center main blade and said at least one channel.