Voith Sulzer Papiermaschinen Gmbh

Voith Sulzer Papiertechnik Patent Gmbh

Sulzer-escher Wyss Limited

Voith Paper Patent Gmbh

Voith Sulzer Papiertechnik Gmbh

Harald Hess

Alfred Bubik

Rudiger Kurtz

Herbert Holik

Bernhard Kohl

Martin Friedrich Kustermann

Peter Mirsberger

R&uuml;diger Kurtz

Elmer Weisshuhn

Thomas Merath

Zygmunt Madrzak

Richard Christian Bernert

Christoph Henninger

Werner Leitenberger

Michael Trefz

Joachim Henssler

Oswald Satzger

Manfred Uebersch&auml;r

Johann Moser

Karl-Heinz Hannen

Hans Peter Hoffmann

Franz Kustos

Benjamin Mend&eacute;z-Gallon

Hans-Peter Sollinger

Hans K Dahl

Klaus Lehleiter

Stefan Reich

Wolfgang Schuwerk

Erwin Brunnmair

Ingo Gottwald

Rudolf M&uuml;nch

Rudolf Munch

Robert Trondle

Ulrich Wieland

Benjamin M&eacute;ndez-Gallon

Andreas Steidele

Christian Steger

Rolf Wenske

Peter Drtina

Herbert Britz

Frank Isele

Ruediger Kurtz

Gerhard Gaus

Juergen Proessl

Horst Senser

Karl-Heinz Enderle

Hubert Brugger

Helmut Steib

Martin Tietz

Michael Kochendorfer

Helmet Stieb

Erwin Brunmair

Device and process for the removal of air from flotation foam formed during the flotation of a paper-fiber-containing suspension. The device includes a driven rotor that includes a shaft and at least one rotor blade positioned on the shaft, and a non-rotating wall arranged to surround the rotor in a region of the rotor blade by a non-rotating wall. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Device for separating air from flotation foam

In a coating method for direct or indirect application of a coating medium onto a moving surface, the amount of coating medium dispensed by an applicator device within a given time period and the actuating force that is exerted on the metering element, in order to achieve a coating layer of a desired coating weight, are altered independently of each other. In a relaxation operation mode, the amount of coating medium applied within a given time period is reduced when the coating weight exceeds a desired value; when the coating weight falls below the desired value, the actuating force exerted on the metering element is reduced. In a contact pressure based operating mode, the amount of coating medium applied within a given time period is reduced when the coating weight exceeds a desired value; when the coating weight falls below the desired value the actuating force exerted on the metering element is increased. When the coating weight falls below the desired value, the amount of coating medium applied within a given time period is increased and the actuating force exerted on the metering element is reduced, while keeping constant the contact pressure of the metering element against the moving surface.

Method of controlling the amount of coating applied on a moving material web

In a method of application of a coating medium by use of a spray device onto a moving surface, which in the direct application method is the surface of a material web, specifically a paper or cardboard web, an atmosphere of back-moistening and/or moistening medium for the atomized coating medium is maintained in the area of the spray device.

Device and method for applying a coating medium onto a moving surface

An apparatus for application of a liquid or pasty coating medium onto a substrate moving past it, for instance a material web of paper, cardboard or boxboard or an applicator roll, includes a back-up chamber which is bounded on its substrate entrance end by a back-up chamber entrance bounding element and on its substrate exit end by a back-up chamber exit bounding element. The apparatus also includes a feed device for feeding the coating medium. In the applicator according to the invention for achieving a uniform coating application, the feed device, viewed in the direction of travel of the substrate, is arranged before the back-up chamber entrance bounding element.

Apparatus and method for application of a liquid or pasty medium onto a passing substrate

An apparatus applies a liquid or viscid coating medium onto a moving material web, especially one made of paper or cardboard. A coating mechanism first applies the coating medium onto an applicator element or an applicator roll, which subsequently transfers the coating medium at a coating location onto the material web in the form of a coating layer. Furthermore, if so desired, a doctoring device can be positioned at a doctor station, adjacent to the coating location, on the downstream side relative to the movement of the material web for the purpose of smoothing and/or metering the coating. The coating apparatus incorporates an apparatus for the generation and/or supplying of a fluid, preferably steam. This apparatus is positioned adjacent to the coating location or to the doctor station on the downstream side relative to the movement L of the material web.

Apparatus for applying a liquid or viscid coating medium onto a moving fiber material web

A device designed for coating a material web with a coating medium includes a coater, a metering/smoothing device positioned downstream of the coater in the direction of feed of the material web, at a certain distance from the coater, and a support roll around which the material web is guided. Moreover, the material web is guided around the support roll only in the area of the metering/smoothing device, and it traverses essentially in a straight line between the coater and the support roll. In accordance to a first aspect of this invention, a support arrangement supports the material web in the straight web section between the coater and the support roll. In accordance to a second aspect of this invention, devices are provided which stabilize the material web in the area where the web traverses in a straight line.

Device for the direct or indirect application of a liquid or viscid coating medium onto a moving material web

A device for direct or indirect application of a liquid or viscous coating medium onto a moving material web, specifically a paper or cardboard web, includes an applicator unit which, in the direct application method, applies the coating medium in the form of a coating layer directly onto the material web at a point of application. In the indirect application method, the coating medium is first applied onto an applicator element, for example an applicator roll, which then transfers, at the point of application, the coating medium to the material web in the form of a coating layer. In addition, a drying device for drying of the coating layer is provided downstream from the point of application, viewed in the direction of flow of the material web. In the applicator unit, a device for moistening and/or warming the material web, coating medium or the coating layer is additionally provided before the drying device, viewed in the flow direction of the material web.

Device for direct or indirect application of liquid or viscous coating medium onto a moving material web

Method for direct or indirect application of liquid or viscous coating medium onto a moving material web

Method for applying a coating medium onto a moving surface

A doctoring device for an apparatus designed to apply a liquid or viscid medium onto a moving base surface includes a metering unit having a coater rod and a coater rod bed. The metering unit is attached to the support beam and is positioned so that it can be pressed against the base surface. A pressure-elastic support arrangement is disposed between the coater beam and the coater rod bed. The coater rod bed is supported pressure-elastically by the support beam via the support arrangement in at least two support directions that are perpendicular to each other. The spring rate of the support arrangement is adjustable in at least one of the support directions. A preferred support arrangement includes pressure hoses which are assigned to each of the two support directions. The pressures in these hoses can be adjusted, independently from each other, to a pre-determined level via a pressure source. Unwanted deformation of the support beam in various directions relative to the base surface can thereby be compensated for. Furthermore, there is a large degree of freedom in the selection of the mounting position of the doctoring device relative to the base surface.

Doctoring device for an apparatus to apply a liquid or viscid medium

The invention relates to a method of directly or indirectly applying a liquid or pasty medium to a continuous material web by use of an application unit having at least one applicator, at least one doctor element, and at least one doctor element support at which the doctor element is held and can be pressed at a predetermined pressure against a counter-surface by at least one adjustment movement of the doctor element support. The following steps are usable to set a desired transverse and/or longitudinal profile of the medium to be applied or which has been applied: pressing the doctor element at a predetermined contact pressure against the counter-surface by adjusting the doctor element support into a predetermined adjustment position, and by altering the forces exerted on the doctor element by the medium to be applied or which has been applied, while the adjustment position of the doctor element support is kept constant for a predetermined production range.

Method of directly or indirectly applying a liquid or pasty medium to a

An applicator for direct or indirect application of a liquid or pasty medium onto a traveling fiber material web includes a metering slot formed as open-jet nozzle between an approach-side lip and a departure-side lip. The approach-side lip or the departure-side lip features on its end directed toward the fiber web an angled flow guide surface.

Applicator for direct or indirect application of a liquid or pasty

A method of application of a liquid or pasty medium onto a moving material web consisting, in particular, of paper or cardboard, in which a direct application (2) of a liquid or pasty medium (4) onto one side of a moving material web (1) and a contactless deflection (3) of the moving material web along a curved path of motion ensues, the side of the moving material web to be provided with the liquid or pasty medium passing through a concave curvature and the direct application (2) of the liquid or pasty medium ensuing directly ahead of the deflection (3) or during the deflection as a free jet along a contactlessly guided section of the moving material web. Additionally, an apparatus for implementing the method is described.

Method and an apparatus for the application of a liquid or pasty medium

This invention pertains to an elongated gap or extended nip press comprised of two pressing elements whose pressing areas are pressed against each other, wherein each of the press areas is formed of a band-shaped jacket element, with the jacket element moving around carriers and being supported by at least one support element, wherein a change of the length of the press gap or nip and/or of the pressure distribution or pattern in the press gap is accomplished in that the portions of the press elements that form the support surfaces and/or that the support elements of at least one of the pressing elements are displaceable in or against the direction of rotation of the respective jacket element.

Elongated gap press with adjustable length

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Grunkraut, Germany

Harald Hess