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Class 162/344 - Slice


Subclass of Class 162 - Paper making and fiber liberation
Definition: Apparatus having means to doctor or limit the thickness
No. of patents: 133
Last issue date: 05/06/2008


1        
NumberTitleIssue Date
7367264Method and apparatus for treating sheets including a vacuum roller for retaining sheets in curved configuration
An apparatus and method for retaining individual sheets of substrate in a curved configuration during coating or printing is disclosed. ...
05/06/2008
7335280Method and equipment in the measurement of the flatness of the flow surface of the headbox of a paper machine
A method in the measurement of the flatness of the flow surface of a headbox of a paper machine is disclosed. The flatness is determined by placing a measuring tool on the flat surface formed by the flow surface and measuring the position of the measuring tool at ea...
02/26/2008
7152813Cap with a suction type spray head
A cap with a suction type spray head includes an air guiding chamber, an intake passage, an outgoing passage, a liquid sucking mouth and an air pressure balancing aperture for a container with a sprayer. The liquid in the container can be sucked out due to air press...
12/26/2006
7090746Process 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
6962647Headbox 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
6846386Method 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
6521095Composite 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
6491793Arrangement 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
6475345Device 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
6471828Headbox
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
6440272Device 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
6372092Headbox and process for supplying a material suspension
Headbox of a paper machine and a process of supplying a material suspension, The headbox includes at least one material suspension supplying system, and a headbox nozzle that includes a first dividing wall having a machine width and a second dividing wall...
04/16/2002
6368464Device for feeding a pulp suspension to a dewatering installation
The invention refers to a device for feeding a pulp suspension to a dewatering installation, particularly for a tissue machine. It is mainly characterized by one or several one-piece, wedge-shaped, steel lamella tip(s) being provided to separate the indiv...
04/09/2002
6319363Sheet forming system and method for controlling the same
A sheet forming system of a paper or cardboard machine. A headbox includes a headbox nozzle with to laterally extending side panels and first and second nozzle walls extending along a width of the machine. First and second screens converge in a region adj...
11/20/2001
6261418Headbox with flexible support plates
Headbox for a paper-making machine including a nozzle extending transversely to the machine running direction across the machine width. The nozzle has a lower and an upper continuous wall each extending across the machine width. The lower nozzle wall is s...
07/17/2001
6248214Headbox
Headbox for a paper machine having a feed part, a central part extending across the machine width, and a nozzle. The nozzle extends across the machine width and has at least one continuous wall that runs across the machine width transverse to the lengthwi...
06/19/2001
6203665Process for setting a uniform characteristic cross-direction profile for a paper web
Process for setting a uniform characteristic cross-direction profile for a paper web with regard to at least formation, basis weight, and fiber orientation in a paper machine. The paper machine can include a headbox with an adjustable die exit opening and...
03/20/2001
6200417Process and 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...
03/13/2001
6197161Profile bar assembly for a headbox in a paper-making machine
A headbox for a paper-making machine includes a plurality of side walls and an apron. A nozzle blade is connected to one of the side walls. The nozzle blade and the apron define a discharge nozzle therebetween. A profile bar is rigidly connected to an end...
03/06/2001
6174413Device for detecting and correcting a fiber orientation cross direction profile change
Process and a device for detecting a change in the fiber orientation cross-direction profile of a paper or cardboard web in the manufacturing process on a paper or cardboard machine. It is recognized that a change in the fiber orientation cross-direction ...
01/16/2001
6165324Multi-layer headbox and separator vane therefor
A headbox for discharging a jet consisting of one or more stock layers to a forming zone in a former comprising at least one separator vane separating two stock channels in order to keep the stocks on each side of the separator vane separated from each ot...
12/26/2000
6146501Cross-machine direction stiffened dividers for a papermaking headbox
Improvements in the internal dividers of a papermaking headbox are provided by stiffening the dividers only in the cross-machine direction. These cross-machine stiffened dividers provide for a smooth and thin divider that is flexible in the machine direct...
11/14/2000
6139690Former with a floating upper lip
A former with a sieve, preferably with a cylinder mold, is provided with an adjustable discharge aperture for a fibrous material suspension exiting from a chamber that is formed between the sieve and an upper lip formed by a flow guide plate. The upper li...
10/31/2000
6117271Slice lip apparatus
A slice lip apparatus is disclosed for guiding a flow of stock from a headbox so that the stock flows between a first and a second wire of a former. The apparatus includes a lip which is disposed adjacent to the first wire. A movable lip is spaced relativ...
09/12/2000
6106671Intelligent gap control for improved paper machine profile control
Apparatus and method for controlling the size of a gap through which material is metered. The gap is defined by a rigid surface and a flexible surface connected to at least one actuator for deforming the flexible surface. A plurality of sensors are positi...
08/22/2000
6068736Slice lip clamp assembly for a slice lip of a headbox
A headbox for a paper-making machine includes an inlet for receiving a fiber suspension. An apron and an upper wall converge relative to each other and define a machine wide discharge nozzle and an outlet therebetween. The discharge nozzle terminates at t...
05/30/2000
6017421Headbox with baffle
A headbox of a paper machine for distributing stock suspension over the machine width of the paper machine onto a forming or wire section includes a headbox nozzle that extends over the machine width and that has spaced apart top and bottom lips that grad...
01/25/2000
5863387Ultrasonic device for deflocculating fiber suspension in a paper-making machine headbox nozzle
A paper-making machine for making a paper web from a fiber suspension includes a headbox having a plurality of walls defining a chamber, and an inlet connected to at least one of the walls and disposed in fluid communication with the chamber. The inlet is...
01/26/1999
5853546Sealed titanium slice lip for a headbox
A headbox for a paper-making machine includes an inlet for receiving a fiber suspension and an outlet for discharging the fiber suspension. The headbox has a plurality of walls including an apron and a pair of side plates. The side plates are disposed at ...
12/29/1998
5843281Headbox of a paper machine with edge feed arrangements
A headbox of a paper machine which is provided with a dilution profiling system which uses a feedback-connected regulation system to control the cross-direction basis weight profile of the paper web produced by the paper machine. The dilution profiling sy...
12/01/1998
5820734Trailing element for a headbox
A graphite composite trailing element for a headbox of a paper making machine is described. A protective layer is provided at or around pondside edges of a trailing element. The protective layer reinforces the pondside edges of the element to protect the ...
10/13/1998
5820735Under felt inclined flat former to produce multilayer or monolayer sheet of paper
The present invention refers to an under felt inclined flat former for making multilayer or monolayer sheets of paper comprising a plurality of forming units arranged along a production line. Each of the forming units is supported on corresponding rigid s...
10/13/1998
5804037Multiply headbox nozzle with heavy end convergence
A nozzle of a multilayer headbox wherein the headbox includes a nozzle for distributing the stock suspension on a wire. The nozzle is subdivided by at least one machine-wide fin, the fin forming with the nozzle at least two machine-wide nozzle ducts. At l...
09/08/1998
5766420Under felt inclined flat former to produce multilayer or monolayer sheet of paper
An under felt inclined flat former for making multilayer or monolayer sheets of paper comprising a plurality of forming units arranged along a production line. Each of the forming units is supported on corresponding rigid supports and is provided with a r...
06/16/1998
5736011Wet 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
5688374Headbox and manifold system for producing a multi-ply paper web
The present invention involves a headbox and manifold system for producing a multi-ply paper which includes a plurality of mixing systems for generation of stock suspension flows of differing concentrations and a distribution manifold for providing a diff...
11/18/1997
5645689Multilayer headbox
A multilayer headbox for the introduction of at least two fiber suspension streams to the forming section of a paper manufacturing machine includes a nozzle chamber further defined by two stream guide walls which end at an outlet gap and by two side walls...
07/08/1997
5622603Influencing the jet velocity in the multilayer headbox
The invention concerns a method of controlling the relative flow speed of the layers in a multi-layer headbox with laminae mounted torque-free between upper and lower lips which are stationary when in operation. The invention is characterized in that a di...
04/22/1997
5599428Headbox nozzle with heavy end convergence
A nozzle of a multilayer headbox wherein the headbox includes a nozzle for distributing the stock suspension on a wire. The nozzle is subdivided by at least one machine-wide fin, the fin forming with the nozzle at least two machine-wide nozzle ducts. At l...
02/04/1997
5578172Slice beam support plate
The invention is directed to a headbox for a machine used in the production of a fiber material web from a fiber suspension. The headbox includes a bottom and a plurality of walls defining a main chamber. A slice beam, defining a width of the outlet chann...
11/26/1996
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