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| Number | Title | Issue Date |
| 7524401 | Hybrid type forming section for a paper making machine A twin fabric hybrid forming section for paper making machine is described in which: the pitch of the fabric support elements decreases progressively in the machine direction; the level of vacuum applied to the forming fabrics through the dewatering boxes increases ... | 04/28/2009 |
| 7425245 | Fibrous sheets This invention is directed to improvements in fibrous sheets, such as paper, incorporating an elongate impermeable element, to a method of making such paper and to documents made therefrom. The method comprises the steps of bringing an elongate flexible element into... | 09/16/2008 |
| 7396437 | Method and system for controlling the web formation Method and system for controlling web formation in the forming section of a paper machine includes measuring the amount of white water occurring during drainage in at least one drainage region of the forming section; and carrying out the web formation control on the... | 07/08/2008 |
| 7384508 | Apparatus and method for draining water from a cellulose web An apparatus and a method are provided for draining water from a cellulose web which is formed in a wedge-shaped space defined by two wires, the wires being supported on chamber assemblies including at one time at least one water receiving chamber, the water flowing... | 06/10/2008 |
| 7364643 | Forming of a paper or board web in a twin-wire former or in a twin-wire section of a former Fibrous stock is supplied by a paper or board machine headbox (1) between looped forming wires (11, 12). Water is removed in a first dewatering zone (Z1) formed with a fixed forming shoe (3) having a curved surface against which a wire ( | 04/29/2008 |
| 7332060 | Twin wire former Twin-wire former for producing a fibrous web. The former includes two endless wire belts arranged to form a twin-wire zone, a dewatering element, and a headbox positioned at an angle relative to an imaginary first horizontal plane. The twin-wire zone includes a firs... | 02/19/2008 |
| 7300553 | Arrangement for a wire section of a paper or board machine A web is formed between two wire loops (13, 14), in a wire section of a paper or board machine, in connection with which dewatering elements (12, 17, 15, 28) are placed and in which water is drained from a stock suspension from between the two wires ( | 11/27/2007 |
| 7300552 | Method for maximizing water removal in a press nip The present invention is a method for maximizing water removal from an absorbent web in a press nip. The present invention uses a pressing unit having a blanket with a void volume and with a pressure profile that maximizes water removal in the press section or on th... | 11/27/2007 |
| 7217342 | Apparatus for paper making and paper surface enhancement A process that can utilize current paper manufacturing facilities by adding consecutive spray apparatuses that can make and/or enhance the manufacture of a multitude of specific paper products on-line, or improve the properties of already formed paper products with ... | 05/15/2007 |
| 7202424 | Balance control system for weight scales The present invention is directed to a weight scale having a balance control system that detects unequal load distribution to the scale's load sensors and produces an output signal that enables the user to re-distribute weight until a predetermined level of balance ... | 04/10/2007 |
| 7150808 | Apparatus for forming a paper or cardboard web An apparatus for forming a paper or cardboard web from a fibrous suspension, said apparatus having a twin wire section consisting of a first wire loop formed by a first wire, a second wire loop formed by a second wire and at least one headbox, from which headbox the... | 12/19/2006 |
| 7090746 | Process and device for removing water from a mechanical pulp, chemical pulp or paper sheet A process and apparatus for removing water from a mechanical pulp, chemical pulp or paper sheet, carried between top and bottom wires running through a dewatering machine having a first dewatering zone. The apparatus includes at least one suction box positioned down... | 08/15/2006 |
| 7067042 | Twin wire former The present invention relates to a twin wire former in a machine for the production of a fiber web, especially a paper or cardboard web from at least one fiber stock suspension, including a vertical twin wire segment having two wires running over a peripheral area o... | 06/27/2006 |
| 7051882 | Twin-wire belt press A twin-wire belt press is disclosed for dewatering a fiber suspension and forming a continuous web of the fiber suspension. The twin wire belt includes a plurality of upper and lower rolls, a perforated roll and endless upper and lower wire belts. Dewatering tables ... | 05/30/2006 |
| 7008511 | Wire section A wire section in a machine for the production of a fiber web including at least one twin wire former including a revolving continuous inner wire and a revolving continuous outer wire that converge in the area of a forming roll. After the forming roll, viewed in the... | 03/07/2006 |
| 7005037 | Device for detaching a paper web from a wire The invention relates to a device for detaching a paper web 9 from a wire 4, where the pulp suspension is fed in between a wire 4 and a felt 5 by a headbox 2, the wire 4 and felt 5 are guided together over a forming r... | 02/28/2006 |
| 6984291 | Vacuum box with skimmer blade A process, and an apparatus, for improving sheet properties in a twin fabric paper making machine forming section whereby pressure pulse generation in the stock can be controlled. The pressure pulses are controlled by mounting a vacuum assisted skimmer blade (15 | 01/10/2006 |
| 6972074 | Equipment for fabric guiding in a paper machine Equipment for fabric guiding in a paper machine has a fabric (10) and rolls (12–18) adapted to support it. In connection with the roll (17) end there is arranged equipment comprising a stand (19) and a nip guard (26). The stand (... | 12/06/2005 |
| 6962646 | Multi-layer headbox Multi-layer headbox for a paper machine that includes a plurality of nozzle chambers having outlet gaps located at nozzle chamber ends. Each of the plurality of nozzle chambers are assigned to different layers, and at least one of the plurality of nozzle chambers ha... | 11/08/2005 |
| 6942760 | Arrangement in the wet end of a paper machine At the end of the twin wire zone of a paper machine former, a suction box (17) inside the upper wire loop (11) has a curved lid (17′) opposite a roll (18) within the lower wire loop (10). The lid is curved in a run situation so t... | 09/13/2005 |
| 6881302 | Former for use in paper production A paper former comprises two wires which converge for defining a paper production gap and a plurality of dewatering blades arranged in the paper production gap in a paper producing direction and brought into sliding contact with one of the two wires so that a stock ... | 04/19/2005 |
| 6875309 | Twin wire former The invention relates to a twin wire former (1) for producing a fibrous web (4), in particular a paper, cardboard or tissue web, from a fibrous suspension according to the generic terms of claim 1. The twin wire former (1) is characterized in th... | 04/05/2005 |
| 6855230 | Method and regulation arrangement for controlling dewatering profile of a former In a paper or board machine, the cross-direction profile of a flow channel defined between a first dewatering element (52, 53) situated inside a first forming wire loop (50) and a second dewatering element (64, 65) situated inside a second formi... | 02/15/2005 |
| 6841037 | Machine and process for producing a tissue web A machine for producing a tissue web is provided, including a former having a forming region which includes at least one circulating, continuous dewatering wire having zonally variable wire permeability. Furthermore, a process for producing the tissue web in a tissu... | 01/11/2005 |
| 6821391 | Former and process for producing a tissue web A former for producing a tissue web and a process of making a tissue web using the former. The former includes a forming element, an inner dewatering belt, and an outer dewatering belt. The inner and outer belts converge to form a stock inlet nip. The inner and oute... | 11/23/2004 |
| 6808599 | Wide wale tissue sheets and method of making same Highly textured tissue sheets, particularly suitable for use as bath tissue, are produced by throughdrying and have a low number and/or low amount of pinholes. The low number or amount of pinholes is provided by using a throughdrying fabric having parallel wide ridg... | 10/26/2004 |
| 6776877 | Twin wire former for the production of a fiber web from a fiber suspension The invention relates to a twin wire former for the production of a fiber web specifically a paper, cardboard or tissue web, from a fiber suspension. The invention is characterized in that the rotating forming roll has an open volume and is a non-suction type... | 08/17/2004 |
| 6699361 | Papermaking device for producing a multilayer liner and associated methods A method for the production of a liner comprising at least a top layer and a base layer is provided, wherein a forming section with at least two forming units is used to create a fiber web, said fiber web being conveyed through a press section and further... | 03/02/2004 |
| 6669820 | Twin-wire former A twin-wire former in a paper machine has two forming wire loops (10, 20), which define between themselves a twin-wire zone. At least one dewatering box (30) is located inside one of the wire loops (10, 20) to remove water through the wire from a web (W) ... | 12/30/2003 |
| 6592715 | Device for the production of a multi-layer fiber stock web A machine for the production of a multi-layer fiber stock web, specifically a paper or cardboard web, whereby a first and a second layer are couched as a result of being delivered by an associated forming belt or wire to a couching element around which a ... | 07/15/2003 |
| 6569287 | System and method of producing corrugated products with on-line corrugation The present invention relates to a system and method of making paperboard and paperboard corrugation that negates the steps of winding rolls of containerboard on machine reels of separate paper machines, subsequent rewinding and slitting of paperboard and... | 05/27/2003 |
| 6554959 | Tissue paper making machine A tissue paper making machine, a tissue paper product, and a method for producing such a tissue paper product. According to the invention, a dewatering and sheet-forming wire (13;14) is deposited in the pulp flow area by a texturing wire (16;17) that is p... | 04/29/2003 |
| 6521094 | Device for the treatment of a fibrous suspension Device for the washing and dewatering a fibrous suspension, which device incorporates two hollow, circular cylindrical filter drums (1), which filter drums incorporate evacuation chambers inside the filter drums for evacuation of fluid. The filter drums r... | 02/18/2003 |
| 6503372 | Twin wire former assembly A non-woven web of cellulosic synthetic fibrous material is produced using a twin wire former. The former may have a closed first end and closed first and second sides, and a second end provided by first and second moving foraminous elements. An interior ... | 01/07/2003 |
| 6372091 | Method and apparatus for forming a paper web A method and apparatus for beginning the formation of a paper web on a traveling forming wire, or between a pair of converging forming wires, includes a headbox on a papermaking machine for projecting a stock stream onto the forming wire, or between the f... | 04/16/2002 |
| 6342125 | Multi-ply web forming method and apparatus and a multi-ply paper or board product formed hereby A multi-ply web forming method and apparatus are disclosed for forming a top ply onto a base ply. A fiber suspension jet is by means of a secondary headbox (21; 21', 26) delivered into a twin-wire roll nip created by two tensioned wires (16, 22; 16', 22';... | 01/29/2002 |
| 6338773 | Device for dewatering solid/liquid suspensions, especially pulp suspensions A device for dewatering solid/liquid suspensions, especially pulp suspensions, where the suspension is dewatered between two belts, with one dewatering zone being a wedge zone. A pair of rolls downstream of the wedge zone impart both area pressure and lin... | 01/15/2002 |
| 6306259 | Device for the treatment of a fibrous suspension Device for the washing and dewatering a fibrous suspension, which device incorporates two hollow, circular cylindrical filter drums (1), which filter drums incorporate evacuation chambers inside the-filter drums for evacuation of fluid. The filter drums r... | 10/23/2001 |
| 6270624 | Stock feed system for a multi-layer headbox and method in the operation of a multi-layer headbox A stock feed system for a multi-layer headbox and a method in the operation of a multi-layer headbox in which into each inlet header of the multi-layer headbox, a stock concept is passed which has been produced out of the same fresh stock by adding the ne... | 08/07/2001 |
| 6267846 | Twin wire former and method of manufacturing a fibrous material web from a fibrous suspension using same Twin wire former and method for manufacturing a fibrous material web from a fibrous suspension using same. The twin wire former comprises a movable bottom wire belt and a movable top wire belt converging at a twin wire zone. The twin wire zone has a first... | 07/31/2001 |
