Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7955474 | Tube bank apparatus for distributing stock A tube bank apparatus is disclosed for distributing stock in a headbox of a papermaking machine. The apparatus includes a tube having a first and a second portion for the flow therethrough of the stock. The first portion defines a bore for the flow therethrough of t... | 06/07/2011 |
| 7897016 | Headbox apparatus for a papermaking machine A headbox apparatus for a papermaking machine is disclosed. The headbox apparatus defines a flow path for stock flowing between an upstream location and a downstream slice lip. The apparatus includes a plurality of blocks which are anchored within the flow path betw... | 03/01/2011 |
| 7794570 | Headbox apparatus for a papermaking machine A headbox apparatus is disclosed for a papermaking machine. The headbox apparatus defines a flow path for stock flowing between an upstream header and a downstream slice lip. The apparatus includes a plurality of elements which are anchored within the flow path betw... | 09/14/2010 |
| 7794571 | Method for managing lamella vibrations of a lip channel of a head box and the lamella for the lip channel of the headbox A procedure and arrangement to control the lamella of a headbox's lip channel, when the mass flow goes in the headbox (3) through the lip channel (2), in which case single mass flows are held separate from each other with the lamella (1) before ... | 09/14/2010 |
| 7785446 | Flow sheet for paper machine and method of manufacturing the same To 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 | 08/31/2010 |
| 7578906 | Headbox and stock delivery system for a papermaking machine A headbox including a stock dilution profiling arrangement and associated stock delivery systems are provided, which together deliver to the forming section of a papermaking machine a uniform stock flow with more consistent basis weight and fiber orientation profile... | 08/25/2009 |
| 7507314 | Vane intended for a headbox of a paper machine and method for ensuring the straightness of a vane A vane intended for a headbox of a paper machine or equivalent is moistened and enclosed in a vapor-proof package to ensure the straightness of the vane. At least a portion of the vane is made of a water-absorbing material, such as plastic or a composite. Advantageo... | 03/24/2009 |
| 7504003 | Arrangement in a headbox An arrangement in the headbox of a paper or cardboard machine has a pulp suspension feed system distributing the suspension over the width of the headbox. At least one first flow resistance element, such as an aperture plate and/or tube system, is provided with flow... | 03/17/2009 |
| 7429307 | Method of forming a fibrous web In a method of forming a layered fibrous web, the method includes the steps of leading at least two different fiber suspensions through a head box (10), separating the fiber suspensions from each other by a blade device (18, 180), supplying the fiber s... | 09/30/2008 |
| 7416636 | Method and apparatus for foam forming The present invention relates to a method and apparatus for foam forming, wherein fibrous foam suspension is introduced from the head box (78, 178) of a production machine to the web forming section thereof. At least one solid material is mixed into the foam ... | 08/26/2008 |
| 7381295 | Pulp fractionation using centrifugal cleaners and power screens with multi-layer headbox and deaeration tank Virgin stock is conducted to a paper or board machine and further to a centrifugal cleaner installation (12) into its first centrifugal cleaner step (12a1). From the first centrifugal cleaner step (12a1) the a... | 06/03/2008 |
| 7363813 | Temperature and moisture probe A probe for measuring the temperature and moisture of a gas has an aspirated flow passage with a configuration that causes the gas to have turbulent flow and, therefore, to mix. A dry bulb thermometer and a wet bulb thermometer positioned in the flow passage downstr... | 04/29/2008 |
| 7318883 | Equipment and method in a paper or board machine for mixing of fresh stock and of water for dilution of fresh stock The invention concerns an equipment and a method in a paper or board machine for mixing fresh stock (M) with water (V) used for dilution of the fresh stock. At the point of mixing (K) of the dilution water (V) and the fresh stock (M) passed from the pipe (13)... | 01/15/2008 |
| 7166193 | Method of ensuring flatness of a vane in a headbox by means of a mounting arrangement, headbox with such a mounting arrangement, a mounting arrangement and vane therefor A method of ensuring the flatness of a vane that is mounted in a headbox by means of a mounting arrangement including engagement dowels for cooperation with a downstream support wall of a transverse groove, said vane being affected during operation by shearing force... | 01/23/2007 |
| 7067040 | Headbox of paper machine or such A headbox (10) of a paper machine or such includes a bypass manifold (J1), from which the pulp is conducted by way of pipes (11a1.1, 11a1.2 . . . 11a2.1, 11a | 06/27/2006 |
| 7001488 | Method of and apparatus for distribution of paper stock in paper or board making machinery An inlet chamber is connected to a nozzle section by way of a plurality of tubes. Diluting liquid for mixing with paper stock flowing through one or each of said tubes is fed into the tube via annular inlet means. To ensure thorough mixing, channel means leading int... | 02/21/2006 |
| 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 |
| 6962647 | Headbox for a paper machine, board machine, pulp machine or equivalent A headbox, for example, in a pulp or board machine, is suitable for high basis weights which are over 400 g/m2 and for high fiber suspension consistencies which are in a range of 2–5%. The headbox has a turbulence part (1), into which a fiber sus... | 11/08/2005 |
| 6952960 | Rectifier unit and rectifier attaching structure A spacer has an annular concave portion, at one end face, to accept a rectifier that rectifies fluid flowing through a flow channel in a flowmeter, a protruding annular convex portion, at the other end face, of a size to fit in the annular concave portion, and fixin... | 10/11/2005 |
| 6902651 | Tube bank structure, and flow tube producing method The invention provides tube bank structure and a method of manufacturing a flow tube, which can improve the stabilization of the flow of stock in the tube bank of the headbox of a papermaking machine and prevent the development of turbulence and uneven concentration... | 06/07/2005 |
| 6904395 | System and method of generating a finite element mesh for a threaded fastener and joining structure assembly A system and method of generating a finite element mesh for a threaded fastener and joining structure assembly includes a computer system for generating a mesh model of the threaded fastener and joining structure assembly by creating nodes and elements for each non-... | 06/07/2005 |
| 6875312 | Method for fluidisation of pulp flow in the headbox of a paper machine or such and control equipment used in the fluidisation A method for fluidisation of a pulp flow in the headbox of a paper machine or such. The characteristics of the pulp flow are affected in the headbox's fluidiser (14) in one step only, whereby the height (h1) of the step is at least equal to the ave... | 04/05/2005 |
| 6846386 | Method of ensuring flatness of a vane in a headbox by means of a mounting arrangement, headbox with such a mounting arrangement, a mounting arrangement and vane therefor A method of ensuring the flatness of a vane that is mounted in a headbox by means of a mounting arrangement including engagement dowels for cooperation with a downstream support wall of a transverse groove, said vane being affected during operation by shearing force... | 01/25/2005 |
| 6841040 | Method and device for feeding chemicals into a fibre suspension In the short circulation of a paper machine, a chemicals flow (F1) is fed into a fibre suspension flow in connection with a pipe expansion comprising a first pipe (1) and a second pipe (2) having a larger diameter than the first pipe, which ... | 01/11/2005 |
| 6821390 | Process and device to control quality parameters in paper, tissue and pulp dewatering plants Apparatus and process for controlling the basis weight cross-profile, the formation, the fiber direction and other quality parameters of a pulp sheet after the headbox in a dewatering plant. The apparatus including at least one suspension feed, at least one distribu... | 11/23/2004 |
| 6821392 | Headbox sealing device A pulp former's sealing blades extend between the headbox slice and twin forming wires and are bonded and/or pinned to blade supports which mount the blades to the slice. The blade supports have flat mounting surfaces which extend in the machine and cross machine di... | 11/23/2004 |
| 6770171 | Method and system for controlling headbox in a paper/board machine A paper/board machine headbox (10) has a stock inlet header (J), a tube bank (11), a turbulence generator (13) and a slice opening (14) which is provided with a profile bar. The headbox (10) is provided with cross direction measuri... | 08/03/2004 |
| 6761801 | Lamella of a headbox of a paper, cardboard, or tissue machine Lamella and headbox of a web production machine. The lamella is formed of at least one high-performance polymer. The at least one high-performance polymer includes high stability, high heat resistance, and good to very good resistance to at least one of alkaline sol... | 07/13/2004 |
| 6736938 | Headbox and arrangement and method for mounting a vane thereof A vane is mounted to a turbulence generator in a headbox by a mounting arrangement that includes an assembly bar that is rigidly connected to an anchoring element of the turbulence generator. The anchoring element has an engagement groove of dovetail shape that rece... | 05/18/2004 |
| 6679974 | Procedure and means for generating turbulence in stock suspension flow In a paper machine headbox, a stock suspension flow passes through turbulence pipes (14an) and is distributed into superimposed layers. Stepped expansion spots (16) of the flow cross-section area of the turbulence pipes (14) or the positions of... | 01/20/2004 |
| 6610175 | Layered fiber structure in paper products Methods and apparatus to enhance paper and board forming qualities with insert tubes and/or a diffuser block in the paper forming machine headbox component which generates vorticity in the machine direction (MD) which is superimposed on the streamwise flo... | 08/26/2003 |
| 6602388 | Process for forming headbox for a machine Process of forming a headbox for a machine, which includes arranging a plurality of headbox channels into rows and columns, positioning a lamella between adjacent rows, fixing an end of the lamella at a fixing point, and arranging lamellar supports downst... | 08/05/2003 |
| 6544387 | Multi-layer headbox for a paper/board machine A multi-layer headbox for a paper or board machine including stock inlet headers each providing one stock and coupled to a tube bank which in turn is coupled to a respective intermediate chamber. The stock flows from the intermediate chambers into a turbu... | 04/08/2003 |
| 6521095 | Composite vane hinge in a headbox A bracket of graphite epoxy has a cylindrical portion which hingedly fits within a dovetail groove extending in the machine direction across the injection face of a papermaking headbox. The bracket has downstream portions defining a vane-receiving slot wh... | 02/18/2003 |
| 6491793 | Arrangement for fastening a turbulence vane to a headbox An arrangement for fastening a turbulence vane to headbox where in the headbox, a groove running parallel to the width of the headbox is formed in a plate delimiting a slice chamber, in order to fasten the turbulence vane to the plate. A fastener is fitte... | 12/10/2002 |
| 6475345 | Device for feeding a pulp suspension with eccentric shaft adjustment A device for feeding a pulp suspension to a tissue machine includes a headbox having top and bottom lips defining a slice gap forming a free flow jet of the pulp suspension. The device also includes at least one eccentric shaft for setting the slice gap b... | 11/05/2002 |
| 6471828 | Headbox Headbox for a machine and process for forming the same. The headbox includes a plurality of channels arranged in rows that extend across a width of the machine and in columns substantially perpendicular to the rows, at least one lamella positioned between... | 10/29/2002 |
| 6464833 | Method of controlling basis weight profile using multi-layer consistency dilution The stock approach piping to a multi-layered headbox can be modified to include a dilution water header that independently supplies dilution water, such as whitewater, to multiple CD segments or zones of the tube bank which supply stock to each layer. The... | 10/15/2002 |
| 6444088 | Foam process web production with foam dilution A nonwoven web of fibrous material is made by the foam process using a manifold of a particular construction. The manifold has a casing with first and second opposite ends including an inlet for a foam-fiber-surfactant slurry at the first end, and optiona... | 09/03/2002 |
| 6440272 | Device for mixing stock suspensions Process and device for the mixing of suspensions with possibly different natures and/or compositions in the stable section of a paper machine. In the process, a suspension, particularly of the backwater of the paper machine, is piped in a mixing tube with... | 08/27/2002 |
