# US 6,086,969 A · Cylindrical rotating body of low inertia > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,086,969 A - Document ID: US6086969A - Status: Granted - Kind: A - Application number: 08/831,455 - Filed: 1997-03-31 - Granted: 2000-07-11 - Earliest claimed: 1995-06-05 - Assignees: Heidelberg Harris, Inc.; Heidelberger Druckmaschinen AG - Inventors: James Michael Argiros - Web page: https://patentgrep.com/patent/US6086969A ## CPC - B29C 53/66: with axially movable winding feed member {, e.g. lathe type winding} - B65H 27/00: Special constructions, e.g. surface features, of feed or guide rollers for webs (rollers in general F16C13/00) - F16C 13/00: Rolls, drums, discs, or the like (guide rollers in feeding webs B65H27/00; calender rolls, bearings therefor D21G1/02; rotary drums or rollers for heat-exchange or heat-transfer apparatus F28F5/02); Bearings or mountings therefor - B29C 53/805: {Applying axial reinforcements} - B29L 2031/324: {Rollers or cylinders having an axial length of several times the diameter, e.g. embossing, pressing or printing} - B65H 2404/1321: Segments juxtaposed along axis - B65H 2404/1451: Pressure - B65H 2404/171: beam supply - B65H 2404/183: with outer layer helicoidally turned around shaft - B65H 2404/1831: wire around shaft - Y10T 428/1314: Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.] - Y10T 428/1341: Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit - Y10T 428/1352: Polymer or resin containing [i.e., natural or synthetic] - Y10T 428/1355: Elemental metal containing [e.g., substrate, foil, film, coating, etc.] - Y10T 428/1362: Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.] - Y10T 428/1379: Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit - Y10T 428/139: Open-ended, self-supporting conduit, cylinder, or tube-type article - Y10T 442/172: Coated or impregnated - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A cylindrical rotating body (1) of low inertia is provided including a cylindrical body (1) having a large length/diameter ratio. The cylindrical body (1) is of thin wall thickness and is sealed at the opposite ends by sealing means (3, 8). The hollow interior (9) of the cylindrical body (1) is loaded with a pressurized medium (10). ## Claims ### Claim 1 A cylindrical rotating body of low inertia comprising: a hollow cylindrical body defining a web contacting outer surface, the hollow body consisting of a thin layer of a first composite material, wherein the composite material includes fibrous material embedded in a bonding resin, the fibrous material including pretensioned longitudinal fibers to increase a bending stiffness of the hollow cylindrical body; a pair of end caps permanently mounted to the hollow body for sealing the hollow interior of the cylindrical body; and a pressurized medium loaded within the cylindrical body. ### Claim 2 (depends on 1) The cylindrical rotating body according to claim 1, wherein said end caps comprise a second composite material. ### Claim 3 (depends on 1) The cylindrical rotating body according to claim 1, further comprising reinforcing elements disposed within the cylinder body. ### Claim 4 (depends on 3) The cylindrical rotating body according to claim 3, wherein the reinforcing elements are ring-shaped. ### Claim 5 (depends on 3) The cylindrical rotating body according to claim 3, wherein said reinforcing elements are a plurality of ring-shaped elements spaced apart from one another over a length of said cylindrical body. ### Claim 6 (depends on 1) The cylindrical rotating body according to claim 1, further comprising reinforcing elements disposed within the end caps. ### Claim 7 (depends on 6) The cylindrical rotating body according to claim 6, wherein the reinforcing elements are ring-shaped. ### Claim 8 (depends on 1) The cylindrical rotating body according to claim 1, wherein an outer surface of the cylindrical body has a groove pattern applied thereto. ### Claim 9 (depends on 1) The cylindrical rotating body according to claim 1, wherein said fibrous material is glass fiber. ### Claim 10 (depends on 1) The cylindrical rotating body according to claim 1, wherein said first composite material includes a carbon-filled layer. ### Claim 11 (depends on 1) The cylindrical rotating body according to claim 1, wherein said pressurized medium is a gas. ### Claim 12 (depends on 1) The cylindrical rotating body according to claim 1, wherein a thickness of a wall of the cylindrical body is no greater than one tenth of a radius of the cylindrical body. ### Claim 13 A cylindrical rotating body of low inertia comprising: a hollow cylindrical body defining a web contacting outer surface, the hollow body consisting of a thin layer of a first composite material, wherein the composite material includes a sheet of metal between two coatings of a bonding resin, a fibrous material including pretensioned longitudinal fibers to increase a bending stiffness of the hollow cylindrical body being embedded in the bonding resin; a pair of end caps permanently mounted to the hollow body for sealing the hollow interior of the cylindrical body; and a pressurized medium loaded within the cylindrical body.