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| Number | Title | Issue Date |
| 7550062 | Method and system for controlling the temperature of ceramic elements in a supporting or wiping strip in a paper production facility, and supporting or wiping strip The temperature of the ceramic elements of a supporting or wiping strip that is assigned to a wire or a felt in a paper production facility, is controlled by guiding a cooling carrier medium or a heating carrier medium through the supporting or wiping strip. For tha... | 06/23/2009 |
| 7459062 | Dryer section Dryer section for drying a fibrous web supported by at least one drying fabric. The dryer section includes a plurality of heated drying cylinders, a plurality of guide rolls, and a plurality of dampening devices arranged at different locations relative to the fibrou... | 12/02/2008 |
| 7429311 | Method and assembly for moistening a moving web or paperboard A method and assembly is disclosed for moistening a web of paper or paperboard, the assembly comprising a steam blow cavity open toward a moving web (1). The steam blow cavity houses spray nozzles (5, 6, 7) at least for injecting steam into the cavity ... | 09/30/2008 |
| 7294239 | Method and an apparatus for manufacturing and drying a fiber web provided with a three-dimensional surface structure An apparatus for dewatering a fiber web in a paper machine includes a heated drying surface, a permeable fabric carrying the fiber web, and a condensing region adjacent a portion of the permeable fabric on a side opposite the fiber web. The fiber web is interposed b... | 11/13/2007 |
| 7060163 | Device for continuous drying of a pulp sheet The invention relates to a device for continuous drying of a pulp sheet 10, particularly a tissue web, with a drying drum 1 and an air circulating system. It is mainly characterised by the drying drum 1 having a shell 12 with a perforated... | 06/13/2006 |
| 7018513 | Siphon support, system and method for the use thereof The invention relates generally to an improvement to a rotary joint and stationary siphon system typically for use in the papermaking process. Disclosed is a siphon support that has a bearing that rotatably engages with a siphon and flow openings that allow for stea... | 03/28/2006 |
| 7005045 | Belt for machines for producing material webs and process of producing the belt A belt for a material web producing machine and a process of producing the belt. The belt includes a plurality of long-chain strength supports arranged to form interstices and a filler at least partially filling the interstices. The process includes forming a sheet ... | 02/28/2006 |
| 6989080 | Nonwoven neutral line dryer fabric A nonwoven papermaker's fabric, usable in the dryer section of a paper machine, has a spiral wound machine direction (MD) base layer of raw stock which is wound around a pair of parallel rolls or cylinders until the desired length and width is achieved. The spiral w... | 01/24/2006 |
| 6946106 | Paper currency sterilization system A paper sterilization system comprises a chamber having one wall with an input slot and another wall with an output slot. A conveyor system is comprised of two co-acting belts, and upper and a lower. The belts are in facing contact. A plurality of rollers is provide... | 09/20/2005 |
| 6916404 | Method and apparatus for web threading in a drying section of a paper machine or similar A method and an apparatus for web threading in a drying section of a paper machine or the like. A leader (24) and a so called run-down strip are formed by cutting in the web coming to the drying cylinder in the drying section. An underpressure box (18)... | 07/12/2005 |
| 6860970 | Patterned paper machine clothing A papermaking belt for use in making paper. The papermaking belt may be used in conjunction with a single-wire draw or twin-wire draw of a papermaking machine. The papermaking belt includes a woven reinforcing element and a patterned framework. The framework defines... | 03/01/2005 |
| 6855227 | Paper machine and method of dewatering a fiber web using displacement pressing and through air drying A method of dewatering a fiber web in a paper machine, includes the steps of: dewatering the fiber web in a forming section to a solids content of greater than approximately 10%; displacement pressing the fiber web in an air press assembly to a solids content of gre... | 02/15/2005 |
| 6706150 | Method and arrangement of impingement for blowing compensation of a tendency of curling of a paper board web to be treated as well as a paper or board machine An air impingement arrangement and method for compensating for the curling tendency of a paper or board web which is being treated. Air impingement is disposed in connection with a paper or board process or with its finishing process and extends across the width of ... | 03/16/2004 |
| 6497792 | Paper machine using metal screen for press section and dryer cylinders Described is a machine for manufacturing a continuous web, in particular a paper or cardboard web, the machine having a number of rolls that may include press rolls, drying cylinders, suction rolls, or the like. At least one transport belt is guided with ... | 12/24/2002 |
| 6475342 | Method of and arrangement for treating a fiber web The invention relates to a method and arrangement for moistening a substantially dry fiber web and subjecting the moistened web to heat and compression.... | 11/05/2002 |
| 6436239 | Method to reduce the adhesion of a damp fibrous material web to a rotating roll Method to reduce adhesion of a damp fibrous material web, e.g., a paper or material web, to a rotating roll. The method includes producing a steam cushion between the rotating roll and the fibrous material web.... | 08/20/2002 |
| 6416843 | Caring doctor blade and method for manufacture of same The invention concerns a caring doctor blade for a paper/board machine, which blade comprises layers of fiberglass and carbon fiber and a caring layer as a rigid laminated structure, which caring layer comprises carbon fiber and grinding particles in dire... | 07/09/2002 |
| 6402892 | Drying section of a paper machine with a closed draw to a calender section In a method at the end of the drying section of a paper machine, drying cylinders (1, 2) are arranged in two substantially horizontal cylinder rows, wherein the first drying cylinders (1) are placed substantially higher than the second drying cylinders (2... | 06/11/2002 |
| 6368458 | Calender press for a paper-making machine with thermally compensated top and bottom rolls and low nip load A calender press for use in a paper-making machine includes a top roll positioned adjacent to a nip and rotatable about a longitudinal axis thereof. The top roll has a length and circumferential perimeter. The length extends in the direction of and is lon... | 04/09/2002 |
| 6346171 | Paper making machine using separate metal screens for press and dryer cylinders Described is a machine for manufacturing a continuous web, in particular a paper or cardboard web, the machine having a number of rolls that may include press rolls, drying cylinders, suction rolls, or the like. At least one transport belt is guided with ... | 02/12/2002 |
| 6207019 | Calender hood A calender hood for a paper machine having a dryer section and a calender section the hood extending along a portion of the paper path from the dryer section through the calender section to restrict movement of the ambient air into the region between the ... | 03/27/2001 |
| 6159343 | Press-to-dryer apparatus A press-to-dryer apparatus is disclosed for pressing and drying a web of paper. The apparatus includes a press for pressing the web of paper and a dryer disposed downstream relative to the press for drying the web. The dryer includes an unfelted drying cy... | 12/12/2000 |
| 5967958 | Heatable roller A heatable roller which can be heated from inside the roller body by a heating device. Provided radially outside the heating device are axially parallel bore holes uniformly distributed over the periphery of the roller body which are connected at the ends... | 10/19/1999 |
| 5961784 | Method for reducing the consumption of fresh water in a paper mill by means of a cooling tower A method for reducing the consumption of fresh water and energy in a paper mill in which fresh water is passed into the paper mill for various needs, and a cooling tower is utilized for cooling water heated in the papermaking process. All fresh waters or ... | 10/05/1999 |
| 5932069 | Paper machine roll with heated ends in a soft calender or supercalender and method for calendering a web A paper machine roll, in particular for a soft calender or supercalender, which includes a metal frame, roll ends, and shafts. The frame is coated with a polymer coating over at least a middle area or central region thereof while lateral regions may optio... | 08/03/1999 |
| 5900120 | Drying cylinder bearing support in a paper-making machine A paper making machine for the production of a fiber material web includes a drying cylinder, first and second bearing assemblies, a fixed rigid support, a fixed structure and a flexible device. The drying cylinder has two longitudinal ends, a longitudina... | 05/04/1999 |
| 5843282 | Heated roll bearing system The invention is directed to an apparatus to produce layers of material, such as paper, carton or cardboard, under use of at least one roll that can be heated in a controlled manner, in particular a dryer cylinder, with tubing attached to the end of the r... | 12/01/1998 |
| 5820830 | Waste recovery and utilization in the kraft recovery process An integrated flue gas treatment and condensing heat exchanger is used to scrub sulfur dioxide from the flue gas produced by a power boiler used in a paper mill operating a kraft process. Sensible and latent heat from the flue gas is recovered and the con... | 10/13/1998 |
| 5798026 | Dry end steam applicator A steam applicator to apply steam to a web passing by the applicator. The applicator is a main supply header and a plurality of profiling steam chambers to receive steam from the main supply header. The pre-heat chambers adjacent the profiling steam chamb... | 08/25/1998 |
| 5735331 | Method and apparatus for regulating the temperature in a chemical melt dissolving tank A method of regulating the temperature in a chemical melt dissolving tank, where chemical melt produced in combustion of spent liquor of a cellulose pulp mill is dissolved in liquid, producing green liquor, provides excellent heat economy, while minimizin... | 04/07/1998 |
| 5701829 | Apparatus for recovering heat in a spent liquor recovery boiler An apparatus for use in the pulp industry for recovering heat in the spent liquor recovery boiler, whereby the boiler walls are formed of water-cooled tubes connected to the water/steam circulation system of the boiler. Supply of air into the lower sectio... | 12/30/1997 |
| 5699746 | Method and apparatus for feeding air into a furnace Combustion gas is fed to a furnace, preferably a recovery boiler for combusting black liquor from cellulose pulp processing, through a gas nozzle disposed in association with a wall of the furnace. The nozzle has a longitudinal axis of elongation, an exte... | 12/23/1997 |
| 5667641 | Application of thermal barrier coatings to paper machine drying cylinders to prevent paper edge overdrying The invention overcomes the problem of paper edge overdrying during the paper drying process on paper machine drying cylinders. It comprises applying a thin ceramic coating onto the circumferential exterior surface of the cylinder near the cylinder edges,... | 09/16/1997 |
| 5651863 | Apparatus and method for treating a sheet of material An apparatus and method for treating a sheet material (3) with an arrangement of rollers (6, 7), including at least one heated roller (8, 9), which defines at least one roller gap through which the sheet of material is passed and acted upon with pressure ... | 07/29/1997 |
| 5603803 | Method and apparatus for recovering heat in a spent liquor recovery boiler A method and apparatus for use in the pulp industry for recovering heat in the spent liquor recovery boiler, whereby the boiler walls are formed of water-cooled tubes connected to the water/steam circulation system of the boiler. The lower section of the ... | 02/18/1997 |
| 5478440 | Method and apparatus for improving the safety of a spent liquor recovery boiler The invention relates to a method and apparatus for use in the pulp industry for improving the safety of a spent liquor recovery boiler, such as a soda recovery boiler. The boiler comprises, for recovering chemical and energy, a furnace cooled by water tu... | 12/26/1995 |
| 5476572 | Chip feeding for a continuous digester A chip feeding system for a continuous digester provides for a greater rate of delivery of chip slurry to the digester, and is much less expensive than conventional chip feeding systems, typically being only 40-50% of the height of the conventional system... | 12/19/1995 |
| 5385644 | Method and device for intensifying the operation of a Yankee press in a soft-tissue paper machine A method and device for intensifying the operation of a Yankee press in a soft-tissue machine in which a web is pressed in one or several nips formed between a Yankee cylinder and one or more press rolls. The web is dried on the Yankee cylinder by blowing... | 01/31/1995 |
| 5289766 | Apparatus for cooling calender rolls and the like Apparatus for cooling the end portions of a calender roll which has an elastic layer adjacent its peripheral surface and wherein the central portion of the peripheral surface is overlapped by a running web of paper or other material when the calender is i... | 03/01/1994 |
| 5174862 | Polishing doctor blade with diamond abrasive particles for a calendering roll Disclosed is a polishing doctor blade for resurfacing the surface of a metal calendering roll while in operation, comprising a working surface containing diamond abrasive particles harder than the surface material.... | 12/29/1992 |
