# US 9,751,696 B2 · Device for a guided transport of a card web > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,751,696 B2 - Document ID: US9751696B2 - Status: Granted - Kind: B2 - Application number: 15/345,094 - Filed: 2016-11-07 - Published: 2017-05-11 - Granted: 2017-09-05 - Earliest claimed: 2015-11-10 - Assignees: Oskar Dilo Maschinenfabrik KG - Applicants: Oskar Dilo Maschinenfabrik KG - Inventors: Johann Philipp Dilo - Web page: https://patentgrep.com/patent/US9751696B2 ## CPC - B65G 21/22: Rails or the like engaging sliding elements or rollers attached to load-carriers or traction elements - B65G 21/20: Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces (arrangements for supporting belts B65G15/60; rollers or roller arrangements B65G39/00) - D01G 25/00: Lap-forming devices not integral with machines specified above (forming mats or batts of continuous filaments for non-woven fabrics D04H) - 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) - D01G: PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING (winding or unwinding, conducting or guiding laps, webs, slivers or rovings in general, sliver or roving cans, depositing in sliver or roving cabs B65H; preparation of fibres for paper-making D21) ## Abstract The device for the guided transport of a card web comprises a card web transport having an endless outside surface for conveying the card web in a conveying direction, and a guide element, which is arranged opposite a section of the outside surface of the card web transport and facing the outside surface of the card web transport, has a surface profile which comprises a plurality of elevations and depressions alternating in a direction transverse to the conveying direction. The elevations and depressions extend in the conveying direction of the card web. The elevations form guide surfaces for the guidance of the card web and the depressions form vent grooves for conducting away the entrained air carried along by the card web. The guide element is concavely curved in the conveying direction, and the elevations point radially inward. ## Claims ### Claim 1 A device for the guided transport of a card web, the device comprising: a card web transport having an endless outside surface for conveying the card web in a conveying direction, and a guide element being arranged opposite a section of the outside surface of the card web transport and, facing the outside surface of the card web transport having a surface profile which comprises a plurality of elevations and depressions alternating in a direction transverse to the conveying direction, wherein the plurality of elevations and depressions extend in the conveying direction of the card web, the depressions comprise bottom surfaces between the elevations, the guide element thus being impermeable to air in the radial direction, the elevations form guide surfaces for the guidance of the card web and the depressions comprising the bottom surfaces form vent grooves for conducting away the entrained air carried along by the card web, and the guide element is concavely curved in the conveying direction and the elevations point radially inward. ### Claim 2 (depends on 1) The device of claim 1 wherein the elevations extend parallel to each other in the conveying direction. ### Claim 3 (depends on 1) The device of claim 1 wherein the elevations are arranged equal distances apart in the direction transverse to the conveying direction. ### Claim 4 (depends on 1) The device of claim 1 wherein the elevations and depressions both extend over a non-varying length. ### Claim 5 (depends on 1) The device of claim 1 wherein the elevations and depressions extend over an entire length of the guide element in the conveying direction. ### Claim 6 (depends on 1) The device of claim 1 wherein certain sections of the depressions extend tangentially. ### Claim 7 (depends on 1) The device of claim 1 wherein the guide surfaces formed by the elevations and the opposite section of the outside surface of the card web transport are at a distance from each other which remains substantially uniform. ### Claim 8 (depends on 1) The device of claim 1 further comprising a mechanism for adjusting a distance between the elevations and the opposite section of the outside surface of the card web transport. ### Claim 9 (depends on 1) The device of claim 1 wherein the card web transport is a conveyor belt traveling around several deflection rollers including a first deflection roller and the section of the outside surface of the card web transport which is opposite the guide element is located in an area where it is being deflected around the first deflection roller. ### Claim 10 (depends on 9) The device according to claim 9 wherein the card web transport is guided at an acute angle around the first deflection roller. ### Claim 11 (depends on 1) The device according to claim 1 wherein the elevations comprise a cross-sectional shape which tapers down in a radial direction toward the outside surface of the card web transport. ### Claim 12 (depends on 1) The device according to claim 1 wherein the elevations comprise a cross-sectional form with a uniform cross-sectional width. ### Claim 13 (depends on 1) The device of claim 1 wherein a width of the elevations is in the range of 0.5-10 mm. ### Claim 14 (depends on 1) The device of claim 1 wherein a width of the elevations is in the range of 3-8 mm. ### Claim 15 (depends on 1) The device of claim 1 wherein a width of the depressions is in the range of 1-20 mm. ### Claim 16 (depends on 1) The device of claim 1 wherein a width of the depressions is in the range of 4-12 mm.