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| Number | Title | Issue Date |
| 7387706 | Process of material web formation on a structured fabric in a paper machine A method of forming a structured web including the steps of providing a fiber slurry through a headbox to a nip formed by a structured fabric and a forming fabric and collecting fibers from the fiber slurry in at least one valley of the structured fabric. ... | 06/17/2008 |
| 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 |
| 7169262 | Method and apparatus for forming a paper or tissue web A method and apparatus for transferring vibrational forces to a wire of a papermaking machine for forming a web on the wire and for dampening vibrations imparted to the papermaking machine. In some embodiments, the apparatus is a vibrational device including a vibra... | 01/30/2007 |
| 7135092 | Arrangement for controlling the edge of pulp mass in a web former and a method for controlling the edge of pulp mass The invention relates to an arrangement for controlling the edge of pulp mass in a web former, the web former comprising a space formed by two wires or the like, into which space the pulp mass is fed. The wires or the like are supported on a chamber units, which eac... | 11/14/2006 |
| 6702925 | Method and apparatus for forming a paper or tissue web A method and apparatus for transferring a vibrational force to the wire of a papermaking machine in order to re-align the fibers of the web forming on the wire or to clean press section felts. In one preferred embodiment, the apparatus is a vibrational de... | 03/09/2004 |
| 6428655 | Integrated paper machine The invention concerns an integrated paper machine, which comprises, in the running direction of the web, a multi-layer headbox (100), a gap former (200), in which there is at least one pre-press (303, 304), a press section (300), in whcih there is at lea... | 08/06/2002 |
| 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 |
| 6303003 | Method and apparatus for drying a moist web A method and an apparatus for continuously drawing superheated vapor through a moist web as the same is being formed and pressed at a porous peripheral surface of a rotatable hollow cylinder, thereby allowing to have web drying in a compact apparatus perm... | 10/16/2001 |
| 6258212 | Device and process for application of a medium onto a material web Device and process for applying a liquid or paste-like medium onto a traveling material web of paper or cardboard. In the application of the application medium, the material web is transferred from a first twin wire zone to a second twin wire zone. The se... | 07/10/2001 |
| 6221265 | Method and device for concentrating liquid-drenched material Methods for the concentration of a dilute material such as a fiber suspension are disclosed including enclosing the dilute material between a first straining belt and a second straining belt both moving through endless paths, and in which the width of the... | 04/24/2001 |
| 6080279 | Air press for dewatering a wet web An air press for noncompressively dewatering a wet web to consistency levels not previously thought possible at industrially useful speeds without thermal dewatering. Side seal members are positioned beyond the lateral edges of the wet web and support fab... | 06/27/2000 |
| 6027612 | Wire section and method of dewatering a fiber web in a wire section web The invention concerns the wire section of a papermaking machine and a method of removing water from a fiber web in that section. A fiber suspension is discharged from a headbox on at least one and usually between two wires in the forming section. The fib... | 02/22/2000 |
| 5932071 | Dandy roll with a grid of diamond shapes Paper bearing a unique watermark having a grid pattern of translucent lines and repeating translucent diamond shapes at alternating intersections of the lines produced using a dandy roll in which the outer grid comprises a rectangular grid pattern where a... | 08/03/1999 |
| 5759354 | Paper machine including a hydraulic cylinder assembly with a non-metallic bushing The invention is directed to a paper machine for making or processing a paper web. The paper machine includes a roll for carrying the paper web; and a hydraulic cylinder assembly connected to the roll for moving the roll. The hydraulic cylinder assembly i... | 06/02/1998 |
| 5736011 | Wet end assembly for a paper making machine The invention is directed to a wet end assembly disposed at a wet end of a paper making machine for forming a fiber web from a fiber suspension. A headbox including a plurality of inner walls defines a chamber. The headbox further includes an inlet in com... | 04/07/1998 |
| 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 |
| 5632862 | Roll for paper-making machine In a roll for a paper-making machine, a torque which is needed for rotating the roll is reduced and the drive power and a running cost are reduced. A hollow perforated roll in the paper-making machine is rotatably mounted on a bearing housing via a bearin... | 05/27/1997 |
| 5512136 | Apparatus and method for removing paper web trim from a forming wire A plurality of spaced knock-off shower nozzles are located adjacent to an edge of a paper web forming wire to provide knock-off sprays which will remove trim strips from the wire. A control is provided to separately and independently control the spray noz... | 04/30/1996 |
| 5074966 | Gap former in a paper machine A gap former in a paper machine, comprising a lower wire loop (10) and an upper wire loop (20), which together define a substantially horizontal twin wire forming zone, which comprises the following web forming zones (a), (b) and (c): (a) In the area of t... | 12/24/1991 |
| 5019214 | Twin-wire former for the production of a web of paper A twin-wire former for the production of a web of paper from a fiber suspension. An upper endless loop of wire belt having a lower horizontal run and a lower endless loop wire belt having an upper horizontal run. Guide rolls support the wire belts to defi... | 05/28/1991 |
| 4923568 | Dewatering zone in a papermachine A joint dewatering zone of wires for dewatering a web to be formed in a two-wire papermachine having a first wire loop and a second wire loop, includes a first forming roll which is situated inside the second wire loop and other dewatering means which are... | 05/08/1990 |
| 4919760 | Web former for a paper machine A web former for a paper machine having a lower-wire loop which forms an initial single-wire part of a dewatering zone. The former also includes a top-wire unit which includes an upper wire which forms a twin-wire dewatering zone together with the lower w... | 04/24/1990 |
| 4900400 | Arrangement for liquid treatment of pulp Apparatus for treating a pulp suspension with a treatment liquid is disclosed, comprising a continuous pervious belt for receiving the pulp suspension and moving it through a treatment zone in a predetermined direction. A treatment liquid supply is locate... | 02/13/1990 |
| 4662992 | Twin-wire papermaking machine and method of dewatering a paper web in a twin-wire papermaking machine In a particularly simple construction a twin-wire papermaking machine possesses a reduced number of rolls as well as a compact arrangement. The foregoing and the greatest possible velocity of a through-passed paper web can be obtained by employing non-suc... | 05/05/1987 |
| 4657635 | Method and apparatus for the deflocculation of stock A papermaking machine including a non-dewatering forming board comprising a plurality of contiguous blades and a plurality of shower nozzles for showering stock carried by a forming medium over the forming board with a plurality of needle jets of water, e... | 04/14/1987 |
| 4657637 | Pulp treatment apparatus having lowerable vacuum containers to facilitate removal thereof The apparatus comprises a stand with two end rolls, over which an endless perforated steel web runs. A head box for the pulp is located at the first end roll, and a device for picking-up the treated pulp is located at the second end roll. Along the web me... | 04/14/1987 |
| 4560438 | Method and apparatus for reducing the energy consumed when drying a paper web A method and apparatus which reduces the amount of energy consumed in drying a paper web are disclosed. The reduction is accomplished by trimming the paper web while it is being conveyed on a moving fabric to divide the formed web into a trimmed web and c... | 12/24/1985 |
| 4557802 | Apparatus for affecting a web drained on a wire An apparatus for affecting a web drained on a wire, comprising a lower wire which runs as an endless loop; disposed transverse members which supporting the lower wire, disposed at a distance from each other; an upper wire which runs as an endless loop and... | 12/10/1985 |
| 4517054 | Web-forming section of a paper machine intended for modernization of a fourdrinier wire An improvement in a web-forming section of a paper machine intended as a modernization of a fourdrinier-wire part by which an improved formation of the web and an adjustable dewatering thereof by which better retention and desired distribution of fillers ... | 05/14/1985 |
| 4416731 | Apparatus for controlling the position and location of a stationary device of a paper machine which acts on a paper web being manufactured therein Apparatus for controlling the position and location of a stationary device extending across the transverse dimension of a web in a paper machine for acting on the web during operation of the paper machine and by which the distance of the device from the w... | 11/22/1983 |
| 4157938 | Method and apparatus for continuously expelling an atomized stream of water from a moving fibrous web A web dewatering concept which has particular utility in papermaking processes wherein overall compression and compaction of the paper web by mechanical means is avoided comprising a high pressure jet of compressible fluid such as air or steam emitting fr... | 06/12/1979 |
| 3977937 | System for making a non-woven sheet by creating an electrostatic field action A method and apparatus for making a non-woven sheet by providing a slurry of liquid and fibers and forming the slurry into a sheet-like form by flowing said slurry against and between two spaced apart surfaces. An electrostatic field action is provided th... | 08/31/1976 |
