Class 162/210 - Pressure member

Subclass of Class 162 - Paper making and fiber liberation
Definition: Processes in which the slurry is subjected to pressure by
No. of patents: 37
Last issue date: 09/14/2010

Number	Title	Issue Date
7794568	Method and apparatus of a twin-wire press Methods for dewatering a fiber suspension in a twin-wire press, having a lower wire and an upper wire, and a first and a second dewatering table, which supports the wires such that a dewatering space is defined by the wires, are disclosed. The wires transport the fi...	09/14/2010
7510630	Extended couch nip on cylinder former An apparatus for use in a cylinder machine having a shoe with a concavely-shaped pressure surface that forms a substantially mating relationship with a cylinder mould or sieve. The concavely-shaped pressure surface of the shoe increases the amount of wrap that a mak...	03/31/2009
7166229	Method and apparatus for extracting liquid present in a humid mass A system for extracting a liquid by pressing a humid mass, the system including at least one extraction channel, while extraction channel being provided with at least one inlet allowing to feed the extraction channel with the humid mass to be treated; with walls pro...	01/23/2007
7141143	Method and apparatus for draining fibre pulp suspension The invention relates to a method of draining a fiber pulp suspension, where the fiber pulp suspension is applied to a convergent dewatering space arranged between two wires travelling in the same direction. In the dewatering space, water and powdery substance are r...	11/28/2006
7131297	Canvas cleaning apparatus for use in paper mill Disclosed is a canvas cleaning apparatus for use in a paper mill. The apparatus includes a main injection unit for injecting cleaning water having an injection head moved from side to side, an auxiliary injection unit for injecting the cleaning water enclosing the i...	11/07/2006
7114268	Drying section and a smoothing apparatus for such a drying section A drying section of a machine for the manufacture of a material web, in particular of a paper or of a board web, comprises a smoothing nip which is extended in the web running direction and is formed between two pressing areas lying opposite one another of which at ...	10/03/2006
7005039	Device for adjusting the position of a wiper strip with respect to the screen in a papermaking plant A device for adjusting the position of the wiper strip on the screen in a papermaking plant regulates the contact pressure with which the wiper strip bears on the screen. The wiper strip is fixed to a supporting bar and the supporting bar is configured such that it ...	02/28/2006
6949854	Method and apparatus for a continuously variable-ratio transmission A method and apparatus for providing a continuously variable transmission (CVT) is described. The CVT comprises permanent magnets to couple power, a coefficient of coupling controlled by an electronic servo control loop. Wherein torque multiplication is achieved by ...	09/27/2005
6699364	Water spray for smooth surface gypsum fiberboard panels An improved method and apparatus for imparting a smooth surface to gypsum fiber panels. The method involves imparting energy to the surface of a slurry as the slurry is dewatered just prior to rehydration. The apparatus used to impart the energy is a wate...	03/02/2004
6478928	Process for dewatering a pulp web The invention refers to a process for dewatering a pulp web, particularly a chemical pulp web, where dewatering takes place between twin wire belts or felts in an initial dewatering zone with a set area pressure and then in a second dewatering zone. It is...	11/12/2002
6461478	Method and device for treating a fibrous material web Disclosed is method and a pressing device (10) of a paper and/or paperboard machine intended for the treatment of a fibrous web (12) which is formed on a band screen and passes around an appropriate open roller (16) having recessed intended to receive the...	10/08/2002
6261416	Device and method for draining a web Device and method for draining a web in a paper production machine. The device may include a press section having at least one press nip for draining and smoothing the web. The at least one press nip may be arranged to smooth one surface of the web more t...	07/17/2001
6221214	Wet press and method for treating a fibrous material web A wet section of a machine for producing a fibrous material web that includes at least one press. The press includes a nip through which the fibrous material web is guided. The fibrous material web is preformed in a web forming zone. At least one press is...	04/24/2001
6132559	Method and device for dewatering a paper or board web and passing the web into a press section A method and device for dewatering a paper or board web and passing the web as a closed draw from a lower wire of a web forming section, in which the web is formed between the lower wire and an upper wire, to the press section and through one or more dewa...	10/17/2000
6030499	Method and apparatus in a paper or board machine for dewatering the web The invention relates to an apparatus in a paper or board machine for dewatering the web prior to its passage to a press section. The dewatering is effected by a pair of rolls, which is located at the end of a wire section upstream of a pick-up suction ro...	02/29/2000
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
5908536	Method and machine for removing water from a paper or board web by pressing A paper or board machine and a method for passing a paper or board web from a forming section to a press section in a paper or board machine wherein the web is carried on a first wire in the forming section or transferred to a first wire from a forming wi...	06/01/1999
5830321	Method for improved rush transfer to produce high bulk without macrofolds A method for improving the rush transfer of a web, such as a tissue web, is disclosed. The method provides for greater angles of convergence and divergence of the carrier fabric and the transfer fabric at the point of transfer by deflecting the carrier fa...	11/03/1998
5820731	Method and apparatus in a paper or board machine for dewatering the web An apparatus in a paper or board machine for dewatering a web carried along a first wire section and prior to introduction of the web to a press section of the paper or board machine. The apparatus comprises a first pair of water removing rolls for receiv...	10/13/1998
5792320	Method and device for removing water from a paper or board web by pressing A method and device for removing water from a paper or board web and for passing the web as a closed draw from a forming wire or transfer wire of the web former to the press section and through one or more dewatering press nips in the press section. The w...	08/11/1998
5725783	Concentrating method and means therefor Methods and apparatus for concentrating a liquid suspension of solid particles are disclosed including providing a screening web moving in an endless path, folding the screening web into a tubular configuration at a first location along that path, unfoldi...	03/10/1998
5647958	Wire part of a machine for the manufacture of fibrous material webs A wire part of a machine for the production of continuous fibrous material webs, especially a papermaking machine, includes two continuous wire belts which together form a twin-wire zone. At least one supporting element having a supporting surface is disp...	07/15/1997
5620566	Extended nip prepress for a paper web A prepress for a paper web in a paper machine including a load shoe which is pressed against a backing element, preferably a vacuum roll, by a load pressure generating by a medium, preferably liquid, which at the same time acts as a lubrication medium in ...	04/15/1997
5607554	Loading box for a former of a paper or board machine A loading box adjustable in zones thereof for a former of a paper or board machine. The former comprises a twin-wire section including two wires placed one above the other and running in the same transfer direction. In the twin-wire section, a drain box i...	03/04/1997
5522959	Press section of a paper machine, in particular for printing paper qualities A press section of a paper machine, in particular for printing paper qualities whose grammage is in the range of about 40 g/m.sup.2 to about 80 g/m.sup.2 is disclosed. The press section comprises a pick-up roll having a suction zone on which a paper web i...	06/04/1996
5507916	Method of treating the edges of a fiber web A method of treating the edges of a fiber web is provided wherein a pressing device device conveys and presses a fiber web through a pressing gap of a pressing station of the device. The station includes a pressing roll and a counter roll. The pressing ro...	04/16/1996
5399412	Uncreped throughdried towels and wipers having high strength and absorbency Uncreped throughdried basesheets can be made with the caliper of the basesheet being independent of the basis weight of the basesheet. Multi-ply wipers and towels produced by plying together two or more of such basesheets having a relatively low basis wei...	03/21/1995
5389205	Method for dewatering of a paper web by pressing using an extended nip shoe pre-press zone on the forming wire Method and device in the manufacture of paper or board for dewatering of a paper web that is being manufactured. The paper web is transferred from a forming wire onto a wire in the drying section while constantly on support of a fabric that receives water...	02/14/1995
4995988	Method and apparatus for thickening a slurry using a compression plate Method and drum filter for thickening of slurry and for treatment of the slurry with liquid. The slurry to be thickened is passed onto the filter face of a drum (3) revolving in a basin (3), and the treatment liquid is passed through the pulp web formed o...	02/26/1991
4944843	Process and apparatus for forming particulate layers A layer of particulate material is formed by forming a foamed dispersion of a particulate material, supplying the foamed dispersion to a predetermined zone of a plane through which a foraminous element is moving, applying a vacuum to said plane across the...	07/31/1990
4941949	Apparatus for manufacturing textured acoustical tile An apparatus for texturing the surface of wet cast plastic acoustical composition during manufacture of acoustical tiles by use of spinning air rolls. In the apparatus, at least one hollow cylindrical roll that is perforated in a random manner is suspende...	07/17/1990
4750340	Apparatus for treating a fibre suspension An apparatus for treating a fiber suspension, comprises a drum rotatably journalled to a stand and having an envelope surface to support a fiber web formed from the fiber suspension. A curved wall plate which is concave in the direction to the envelope su...	06/14/1988
4370200	Method of influencing a pre-drained fibrous web on a screen A method and apparatus are disclosed for influencing the fibers in the uppermost layer of a fibrous web lying on a screen, for example, in applying a watermark or evening the surface of the web, wherein a surface compression is exerted on the web by a scr...	01/25/1983
4344804	Process and apparatus for the manufacture of fiber-reinforced hydraulically bound articles such as cementitious articles The present invention relates to a continuous process for manufacturing articles comprised of fiber-reinforced hydraulically bound material. A layer of the fiber-reinforcing and hydraulically bindable materials are placed on a first endless carrier while ...	08/17/1982
4194946	Process for continuously preparing fiber reinforced cement Fiber reinforced cement is continuously prepared by forming a conveyor by connecting a plurality of suction boxes each having a perforated plate, contacting the perforated plates of the suction boxes with a filter cloth and moving the suction boxes with t...	03/25/1980
4145249	Shearing means for penetrating pulp stock on Fourdrinier machine A shear roll is situated above an upper surface of a top run of a Fourdrinier fabric such that a lower portion of the shear roll is adapted to penetrate a pulp stock web situated on the Fourdrinier fabric. The shear roll is operated by an external source ...	03/20/1979
4063996	Water removal from fiberboard A fibrous board is formed by conventional water laid techniques such as the utilization of a Fourdrinier machine. After the board has formed and has been consolidated, it is subjected to a vacuum action to remove additional water from the wet board struct...	12/20/1977

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Class 162/210 - Pressure member