# US 2008/0185258 A1 · Cement Mixer Chute Seal System and Method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0185258 A1 - Document ID: US20080185258A1 - Status: Published application - Kind: A1 - Application number: 11/850,472 - Filed: 2007-09-05 - Published: 2008-08-07 - Earliest claimed: 2006-09-07 - Inventors: Tullio J. DeCollibus - Web page: https://patentgrep.com/patent/US20080185258A1 ## CPC - B28C 5/4251: {telescopic or foldable chutes} - B65G 11/18: Supports or mountings - B28C: PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER (preparing material for foundry moulds B22C5/00) - 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) ## Abstract Disclosed is a cement mixer chute assembly designed to seal a cement mixer chute. The cement mixer chute sealing system fits between adjacent sections (e.g., upper and lower) of the cement mixer chute. The cement mixer chute system may be connected to the cement mixer chute in any number of ways including clips, nuts and bolts and adhesives. The cement mixer chute sealing system prevents leakage of wet concrete as it leaves the cement mixer via the cement mixer chute. ## Claims ### Claim 1 A cement mixer chute sealing system comprising: a pliable sealing member configured to generally envelope an outer, underneath portion of a cement mixer chute near a connection boundary of adjacent, separate cement mixer chute sections; and means for connecting said pliable sealing member to said cement mixer chute near the connection boundary. ### Claim 2 (depends on 1) The system of claim 1, wherein said sealing member is fabricated of gum rubber. ### Claim 3 (depends on 1) The system of claim 1, further comprising a backing plate to which said sealing member is attachable. ### Claim 4 (depends on 3) The system of claim 3, wherein the sealing member is attached to the backing plate using a series of nuts and bolts. ### Claim 5 The system of clam 3, wherein the sealing member is attached to the backing plate using adhesive. ### Claim 6 (depends on 3) The system of claim 3, wherein said backing plate has a cross-sectional shape generally matching the sealing member. ### Claim 7 (depends on 1) The system of claim 1, wherein the sealing member has a thickness that causes it to overlap the connection boundary. ### Claim 8 (depends on 1) The system of claim 1, wherein said pliable sealing member is generally u-shaped. ### Claim 9 A cement mixer chute sealing system comprising: a sealing member fabricated of a substantially pliable material, said sealing member configured to snugly fit around an outer, underneath periphery of a cement mixer chute; a backing plate configured for attachment with said sealing member; and connection means for connecting said sealing member adjacent to an intersection boundary between two cement mixer chute sections. ### Claim 10 (depends on 9) The system of claim 9, wherein said sealing member is fabricated of gum rubber. ### Claim 11 (depends on 9) The system of claim 9, wherein said sealing member has a generally u-shaped cross-section. ### Claim 12 (depends on 9) The system of claim 9, wherein said backing plate has a cross-sectional shape generally matching the sealing member. ### Claim 13 (depends on 9) The system of claim 9, wherein the sealing member has a thickness that causes it to overlap the intersection boundary. ### Claim 14 (depends on 9) The system of claim 9, wherein the sealing member is attached to the backing plate using a series of nuts and bolts. ### Claim 15 (depends on 9) The system of claim 9, wherein the sealing member is attached to the backing plate using adhesive. ### Claim 16 A cement mixer chute sealing system comprising: a pliable sealing member configured to generally envelope an outer, underneath portion of a cement mixer chute near a connection boundary of an adjacent, separate cement mixer chute section; and connecting members configured to connect said pliable sealing member to said cement mixer chute near the connection boundary. ### Claim 17 (depends on 16) The system of claim 16, wherein the connecting members are selected from the group consisting of: adhesives, nuts and bolts, rivets, and clips. ### Claim 18 A cement mixing chute comprising: at least two chute sections joinable to one another at respective ends thereof; a sealing member configured to fit around an outer, underneath surface of said chute sections near a location where the at least two chute sections are joined to one another; and means for connecting said sealing member to at least one of the chute sections. ### Claim 19 (depends on 18) The cement mixing chute of claim 18, further comprising a backing plate to which said sealing member may be connected. ### Claim 20 (depends on 18) The cement mixing chute of claim 18, wherein the sealing member has a thickness that causes it to overlap the connection boundary.