Flow sheet for paper machine and method of manufacturing the same
October 5, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesHeadbox trailing element Headbox trailing element Plastic transfer molding techniques for the production of fiber reinforced plastic structures Trailing element device for a headbox Multilayer headbox Multilayer headbox Trailing element for a headbox Apparatus for making components of large area by RTM Patent #: 6257858 InventorsAssigneeApplicationNo. 11662364 filed on 10/05/2004US Classes:162/343With vanes or pulp stream dividing means , 264/DIG78ExaminersPrimary: Hug, EricAttorney, Agent or FirmForeign Patent References
International ClassesD21F 1/06D21F 1/02 B29C 39/10 B29C 39/24 AbstractTo smooth the surface of a flow sheet that is used in a paper machine and make the flow sheet easy to handle, reinforced fibers are disposed in a mold 5. The entire mold 5 is covered with enclosing members 10, 11 so that an enclosed space 12 is formed inside the enclosing members 10, 11. While air in the enclosed space 12 is being suctioned through one end of the enclosed space 12, matrix resin is supplied to the reinforced fibers through the other end of the enclosed space 12 to impregnate the reinforced fibers with the matrix resin, and the matrix resin is hardened, whereby there is obtained a flow sheet whose surface smoothness is 0.25 μm or less in terms of arithmetical mean roughness.Other References
Field of SearchFlow box, slice, and/or approach flowWith vanes or pulp stream dividing means Mechanical treatment of slurry in head box or approach flow Separately introducing reacting materials into mold To produce composite, plural part or multilayered article One component is a fibrous or textile sheet, web, or batt Joining a plurality of superposed fibrous or textile layers Shaping against forming surface (e.g., casting, die shaping, etc.) 264/DIG78 | |
