Patents Assigned to Voith Patent GmbH
  • Publication number: 20160201264
    Abstract: A fabric, in particular a press felt, is provided for use in a press section of a machine for producing a fiber web such as a paper, cardboard, or tissue web. The fabric is formed of multiple strips which are arranged adjacent one another and extend substantially parallel to one another in a machine direction. The strips together form a width of the fabric in the machine transverse direction. Each strip is designed as a double-layered sheet material. Strips arranged adjacently in respective pairs are connected by way of a connecting strip. A part of the width of each of the connecting strips extends in the machine transverse direction into the two adjacent strips. The strips are connected to the connecting strips.
    Type: Application
    Filed: July 25, 2014
    Publication date: July 14, 2016
    Applicant: VOITH PATENT GMBH
    Inventors: JOHAN MALMQUIST, KJELL KARLSSON, CONNY ANDERSSON
  • Publication number: 20160177506
    Abstract: A clothing for use in machines for producing a fiber web such as a paper, cardboard, tissue or nonwoven web, in particular a press felt, has a load-absorbing main structure and at least one liquid-absorbing and/or liquid-storing structure arranged on and/or in the load-absorbing main structure. The liquid-absorbing and/or liquid-storing structure is a sponge cloth-like porous structure made of regenerated cellulose, viscose or a mixture thereof.
    Type: Application
    Filed: July 22, 2014
    Publication date: June 23, 2016
    Applicant: VOITH PATENT GMBH
    Inventors: JOHAN MALMQUIST, KJELL KARLSSON, CONNY ANDERSSON
  • Patent number: 9364997
    Abstract: A method and a device for producing fiber preforms which are, for example, a precursor in the production of fiber reinforced plastic components, are disclosed. The method includes the steps of tensioning the threads or rovings, draping the threads or rovings over a molding tool and attaching the threads or rovings to a fiber preform. A plurality of separate grips grip individual or a plurality of threads or rovings at a plurality of thread transfer points allocated respectively to the individual grippers. The grippers are then moved in substantially parallel paths relative to each other and the threads or rovings are thereby tensioned side by side.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: June 14, 2016
    Assignee: Voith Patent GmbH
    Inventors: Marco Göttinger, Michael Kaiser
  • Patent number: 9365975
    Abstract: A press felt includes a base structure providing dimensional stability in a machine and a cross machine direction of the felt, a batt fiber structure including batt fiber layers attached to the base structure which provide a paper contacting side and a machine contacting side of the felt. The base structure includes a first and second side. Polymeric beads or strands made from a polymeric material are arranged on at least one of the two sides of the base structure. The polymeric beads or strands arranged on the at least one side have a longitudinal expansion in the machine direction of the felt and are arranged side-by-side when viewed in the cross machine direction of the felt to generate space between adjacent beads or strands. At least one of the batt fiber layers is arranged to cover both the at least one side and the polymeric beads or strands thereon.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 14, 2016
    Assignee: Voith Patent GmbH
    Inventors: Antony Morton, David Stuart Ponton, Paul Raymond Riding, Andrew Allum
  • Publication number: 20160160442
    Abstract: A roll for a machine for producing and/or processing a fibrous web, such as a paper, board or tissue web, has a circular-cylindrical main roll body. A roll cover covers the circumferential surface of the main roll body, at least in some segments. A pressure- and/or temperature-sensitive sensor is embedded in the roll cover. The sensor connects to an electrical and/or optical signal line. The signal line has a first line segment inside the roll. A second line segment extends substantially outside the roll and is connectable to a signal excitation and/or signal processing unit at one end. An electrical and/or optical rotational connection connects the first and second line segments to allow the line segments to be rotated relative to one another. When the roll is rotated, the first line segment rotates together with the main roll body. The second line segment does not have to follow the rotation.
    Type: Application
    Filed: April 23, 2014
    Publication date: June 9, 2016
    Applicant: VOITH PATENT GMBH
    Inventors: MATTHIAS SCHMITT, WOLFGANG ECKE, MARTIN BREINEDER
  • Publication number: 20160158804
    Abstract: A pressure screen for cleaning a fibrous stock including a screen element which has a rotationally symmetrical configuration about a screen axis. The screen element divides the pressure screen into an inlet chamber and an accepted stock chamber. The inlet chamber is connected at a first axial end with a suspension inlet and at a second axial end with a reject outlet. The accepted stock chamber is connected with an accepted stock outlet. The pressure screen also includes a rotor situated in the inlet chamber and including a plurality of rotor blades. The rotor rotates about the rotational axis relative to the screen element. The plurality of rotor blades is arranged on a plurality of circumferential planes of the rotor. The width of an annular gap between the rotor and the screen element decreases from the suspension inlet to the reject outlet.
    Type: Application
    Filed: February 16, 2016
    Publication date: June 9, 2016
    Applicant: Voith Patent GmbH
    Inventor: Kiyoshi Kokubun
  • Patent number: 9359722
    Abstract: A woven wire for use in a paper, cardboard, or tissue manufacturing machine, has a first fabric layer providing a web-contact side and a second fabric layer providing a machine-contact side. The layers have machine-direction threads, cross-direction threads, and binder threads. A first fabric layer has a weaving pattern of interwoven first MD threads, first CD threads and binder threads. The second fabric layer has a weaving pattern of interwoven second MD threads and second CD threads. The first and second fabric layers are interconnected by binder threads. The binder threads are interwoven with MD threads and/or CD threads of the first and of the second fabric layers. The first MD threads, the first CD threads and the binder threads have a circular cross-sectional face. At least some or all second MD threads have a cross-sectional face with a flattened shape different from a circular shape.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: June 7, 2016
    Assignee: Voith Patent GmbH
    Inventors: Johann Boeck, Johan Mattijssen, Matthias Hoehsl
  • Patent number: 9359723
    Abstract: A machine for producing fiber-containing web material, in particular tissue paper, includes a permeable dewatering belt for transporting fiber-containing source material used for producing web material from a forming section to a suction/pressing section, and a press belt assembly assigned to the suction/pressing section. The source material is received in the suction/pressing section between the press belt assembly and the dewatering belt and the press belt assembly presses the source material and the dewatering belt against a suction assembly of the suction/pressing section. The press belt assembly has a single press belt providing a source material contact surface.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: June 7, 2016
    Assignee: Voith Patent GmbH
    Inventors: Hubert Walkenhaus, Johan Einarsson, Ademar Lippi Alves Fernandes
  • Patent number: 9352871
    Abstract: A device for cutting a strapping off of a cuboid bale includes at least one cutter bar that can be moved toward the bale, wherein the bale is guided along the cutter bar by a conveying apparatus and the cutter bar is arranged on a side of the bale that is directed perpendicularly to a conveying direction. Efficient cutting of all strapping is made possible by arranging at least two cutter bars on adjoining sides of the bale and by guiding the cutter bars in a traversing device in the conveying direction during the contact with the bales.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: May 31, 2016
    Assignee: Voith Patent GmbH
    Inventors: Frank Kern, Ingo Jonen, Stephan Liedemann
  • Patent number: 9347180
    Abstract: The invention relates to a device for dewatering a fibrous web with a press zone which is formed by a mating element with a curved surface and a permeable press belt which wraps at least partially around the curved surface and has a running side and a contact side contacting a second side of the fibrous web. A permeable carrier belt arranged between the mating element and the fibrous web guides the fibrous web through the press zone. The device is configured so a fluid can flow through the press belt, the fibrous web, and the permeable carrier belt at least in a part region of the press zone. The permeable press belt is configured to generate a pressing pressure in the press zone when a tensile stress of at least 20 kN/m is applied and the contact side is adapted to a quality of the fibrous web produced.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: May 24, 2016
    Assignee: Voith Patent GmbH
    Inventors: Luiz Carlos Silva, Thomas Scherb, Daniel Schoeps, Dalcio Chiaranda, Daniela Reis
  • Patent number: 9340189
    Abstract: The invention concerns a hydrodynamic retarder having a rotor which can be brought into rotation via a drive unit and a fixed stator or a stator rotating in opposite direction to the rotor, whereas the rotor and the stator comprise bladed wheels, which form together a working chamber which can be filled with working medium; the drive unit is provided with a separating clutch, by means of which the rotor can be disconnected for its immobilisation, comprising a driven primary side and a secondary side associated with the rotor; having a control device which controls the opening and closing of the separating clutch for switching the retarder (17).
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: May 17, 2016
    Assignee: Voith Patent GmbH
    Inventors: Achim Menne, Tilman Huth, Dieter Laukemann, Werner Koch, Werner Klement, Martin Becke
  • Publication number: 20160130758
    Abstract: A large-cylinder drying roller is provided with a divided hollow shaft for reasons of production. The divided hollow shaft has hollow-shaft parts which are capable of being inserted at both sides into a construction composed of a cylinder shell and caps connected thereto by a weld seam, and are capable of being thereafter connected to one another and to the caps.
    Type: Application
    Filed: June 2, 2014
    Publication date: May 12, 2016
    Applicant: VOITH PATENT GMBH
    Inventors: CHRISTIAN SCHMID, ROBSON CONSOLATO, MARCO BRUJAS
  • Patent number: 9328460
    Abstract: The invention relates to a method and to a device for drying a fibrous web wherein the traveling fibrous web is acted upon by steam and hot, moist air in the region of a preceding drying zone and is then fed to the preceding drying zone of a downstream drying zone comprising a drying cylinder and a hood allocated thereto. Hot air is taken out of the hood allocated to the drying cylinder of the downstream drying zone. To create at least a portion of the steam for the preceding drying zone, condensate and/or fresh water occurring in the drying cylinder of the downstream drying zone is heated by the hot air taken out of the hood by means of a first heat exchanger. Alternatively or additionally for creating at least a portion of the hot, moist air for the preceding drying zone, the hot air taken out of the hood guided through the first heat exchanger is fed to the preceding drying zone.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: May 3, 2016
    Assignee: Voith Patent GmbH
    Inventors: Thomas Scherb, Joao V. Boechat
  • Publication number: 20160115996
    Abstract: A tilting pad, preferably for a radial plain bearing which supports a shaft, with a spaced position in relation to a bearing axis and comprising a supporting surface and a bearing surface opposite the supporting surface, whereby the supporting surface is delimited in an axial direction by two lateral surfaces when viewed transversely, and in a circumferential direction by a run-in edge and a run-out edge when viewed in an installation position, and whereby structures aiding removal of lubricant and coolant are provided on the run-out edge; wherein the structures aiding removal of lubricant and coolant on the run-out edge comprise open-edged recesses arranged on the run-out edge spaced apart from one another in an axial direction.
    Type: Application
    Filed: May 13, 2014
    Publication date: April 28, 2016
    Applicant: Voith Patent GmbH
    Inventors: Steffen Kämmerer, Ralph Rudolph
  • Publication number: 20160115963
    Abstract: An integral transmission; comprising a driving gear connected to a driving shaft for co-joint rotation, a large gear engaging with the driving gear, a first driven gear engaging with the large gear, and at least one additional driven gear which engages with the driving gear; wherein an axis of rotation of the driving gear and an axis of rotation of the first driven gear engaging with the large gear are arranged in a plane of alignment, an axis of rotation of the large gear is offset in the vertical direction with respect to the plane of alignment, and an axis of rotation of the at least one additional driven gear engaging with the driving gear is located in the plane of alignment. A geared compressor system; comprising the integral transmission and a drive unit.
    Type: Application
    Filed: April 28, 2014
    Publication date: April 28, 2016
    Applicant: Voith Patent GmbH
    Inventors: Ulrich Kempter, Jens Kunze, Thomas Horn, Michael Schmid
  • Patent number: 9322132
    Abstract: A method for applying a corrosion-protective coating to a roller component includes the steps of providing a device for thermal spray coating, providing a stainless steel material, coating at least one part of the surface of the roller component by applying the stainless steel material using the device for thermal spray coating and sealing the applied coating by a polymer material.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: April 26, 2016
    Assignee: Voith Patent GmbH
    Inventors: Alexander Etschmaier, Jürgen Angerler, Hasso Jungklaus, Goar Hesselmann
  • Patent number: 9309891
    Abstract: The invention concerns a hydrodynamic coupling, having a pump wheel and a turbine wheel, which form together a toroidal working chamber which can be filled with working medium; with a closed working medium circuit, which extends from the working chamber via a working chamber outlet, an external circuit branch and a working chamber inlet back into the working chamber; with a storage chamber positioned outside the working chamber and outside the closed working medium circuit, for receiving the working medium evacuated from the working chamber for reducing the filling level of the working chamber, which is connected via a connection for conveying the working medium outside the working chamber to the closed working medium circuit. The invention is characterized in that the storage chamber is designed as a confined chamber which is pressure-tight to the environment, having a control pressure port so as to forcibly displace the working medium in the storage chamber with a control pressure.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: April 12, 2016
    Assignee: Voith Patent GmbH
    Inventors: Jan Scherrle, Stefan Hutzenlaub, Bernhard Schust, Harald Hoffeld
  • Patent number: 9309624
    Abstract: A fabric for a papermaking machine is in the form of an endless belt which is closed in the circulating direction. The fabric has a first layer and a second layer which is arranged on the first layer. Each layer is formed by one or by a plurality of film-shaped tapes which adjoin one another and are arranged next to one another in the direction transversely with respect to the circulating direction. The side edges, which adjoin one another, of two film-shaped tapes of one of the two layers are arranged between the side edges of the two layers are arranged between the end edges of adjoining end edges of film-shaped tapes of one of the two layers. The film-shaped tapes of one of the two layers are connected over their full area to the film-shaped tapes of the other of the two layers.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: April 12, 2016
    Assignee: Voith Patent GmbH
    Inventors: Michael Straub, Robert Eberhardt
  • Patent number: 9302871
    Abstract: A roll for a machine for processing a material web, in particular a paper, cardboard, or tissue machine, has a cylindrical roll core and a roll cover which is arranged on the radially outer lateral face of the roll core. The roll cover has a functional layer and a connecting structure which lies radially between the roll core and the functional layer. The radially outer lateral face of the functional layer provides a contact surface which can be brought into contact with the material web or a covering. A plurality of pressure and/or temperature-sensitive sensors are embedded in the roll cover. The sensors are arranged in the connecting structure or at the interface between the connecting structure and the functional layer.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: April 5, 2016
    Assignee: Voith Patent GmbH
    Inventors: Martin Breineder, Hubert Bischof, Matthias Schmitt, Yang Shieh
  • Publication number: 20160082968
    Abstract: A method for controlling a hydrodynamic retarder in a motor vehicle that can be mechanically disengaged via a disconnect clutch, comprising a drive motor whose power output is controlled via an actuator such as a foot pedal or a lever; whereby in an overrun operation the acceleration of the motor vehicle is collected or detected and compared with a pre-specified acceleration value; and whereby in the non-braking mode the disconnect clutch is engaged, regardless of an initiation of a braking mode by an operator of the motor vehicle or a driver assist system and the working chamber is maintained drained when the acceleration exceeds an acceleration limit.
    Type: Application
    Filed: December 7, 2015
    Publication date: March 24, 2016
    Applicant: Voith Patent GmbH
    Inventors: Werner Adams, Dieter Laukemann, Achim Menne, Ravi Schade