公开(公告)号：US12221749B2

公开(公告)日：2025-02-11

申请号：US18082958

申请日：2022-12-16

Applicant: Voith Patent GmbH

Inventor： Dominik Marusa ,  José Luiz Campos Souza ,  Thomas Martin

IPC: D21F3/08 ,  D21F3/04

Abstract: The invention relates to a roller for producing a fibrous web, in particular a paper web including a rotationally symmetrical base body which is rotatable about a longitudinal axis and has a shell surface on which there are arranged at least two elastically deformable and/or deflectable ring-shaped lamellas which extend away from the shell surface in the radial direction and which surround the base body in the circumferential direction, wherein the lamellas are arranged at least in sections at an angle relative to a center plane of the roller aligned perpendicular to the longitudinal axis of the roller, thus forming an angle of inclination.

公开(公告)号：US12188178B2

公开(公告)日：2025-01-07

申请号：US18076506

申请日：2022-12-07

Applicant: Voith Patent GmbH

Inventor： Scott D. Quigley

IPC: D21F1/12 ,  D21F1/00 ,  D21F11/00 ,  D21F7/12

Abstract: A woven fabric for a fiber web producing machine has a defined machine direction, a cross machine direction, a web facing side, and a machine side. The web facing side is formed by MD yarns that extend substantially in the machine direction and by CD yarns extending substantially in the cross machine direction of the woven fabric. The MD yarns and CD yarns are interwoven with each other and the woven fabric is configured to structure the fiber web produced on the woven fabric. A plurality of adjacent long flotations of MD yarns on the web facing side form together a discrete element that is raised on the web facing side for allowing the woven fabric to structure the fiber web. The term “long flotation” means that the MD yarn passes over at least six adjacent CD yarns on the web facing side of the woven fabric.

公开(公告)号：US12180630B2

公开(公告)日：2024-12-31

申请号：US17791848

申请日：2020-12-03

Applicant: TRÜTZSCHLER GROUP SE ,  VOITH PATENT GMBH

Inventor： Thomas Weigert ,  Kai Pöhler ,  Sven Thomßen

IPC: D04H18/04 ,  B32B5/02 ,  B32B5/06 ,  B32B5/26 ,  B32B37/00 ,  D01G15/04 ,  D04H1/4374 ,  D04H1/49 ,  D04H1/492 ,  D04H1/498 ,  D04H1/4258 ,  D04H1/4291 ,  D04H1/4334 ,  D04H1/435

Abstract: An installation and a method for selectively producing a single-ply or alternatively a multi-ply nonwoven includes an inclined wire former configured to deposit a sheet of wet-laid fibre material on a first circulating belt, a further belt configured to receive the sheet of wet-laid fibre material from the first circulating belt, a roller card arranged downstream in the material transport direction and configured to introduce a roller card web into the installation, a hydroentanglement arranged downstream in the material transport direction and including at least one water beam configured to entangle, bond and/or structure a single sheet of fibres or a plurality of sheets of fibres, and a dryer arranged downstream in the material transport direction.

公开(公告)号：US20240424892A1

公开(公告)日：2024-12-26

申请号：US18825182

申请日：2024-09-05

Applicant: VOITH PATENT GMBH

Inventor： Benedikt SCHLEIFER ,  Roland HOLZAPFEL

IPC: B60K15/07 ,  B60K15/03 ,  B60K15/063 ,  F17C13/08

Abstract: A fuel tank for storing a gas and for installation in a gas-powered vehicle, such as a utility vehicle. The fuel tank has an elongate cylindrical shape that is closed by curved pole caps at both ends, a reinforcing layer made of fiber-reinforced plastic, and a boss on each of the pole caps. The at least two fastening devices surround the cylindrical central part of the fuel tank with tensioning straps for fastening the fuel tank to a support structure. The cylindrical central region of the fuel tank has on the outer side thereof a bead, which is arranged directly adjacent to one of the fastening devices and abuts thereagainst so that the fuel tank is unable to slip through the tensioning strap(s) of this one fastening device at least in one direction.

公开(公告)号：US12077913B2

公开(公告)日：2024-09-03

申请号：US17798655

申请日：2021-02-04

Applicant: VOITH PATENT GMBH

Inventor： Isabel Prause ,  Robert Eberhardt ,  Hubert Walkenhaus ,  Torsten Wich ,  Cedric Fitzer ,  Uwe Koeckritz ,  Thomas Hensler ,  Reinhard Holl

IPC: D21F1/00 ,  D21F11/00

CPC classification number: D21F1/0036 ,  D21F11/006

Abstract: A covering for a machine for producing or processing a fibrous web, in particular a paper or tissue web. The covering includes a basic covering which has a web-contacting upper side and an underside, and a plurality of polymer elements. The polymer elements are welded onto the upper side and at least some of the polymer elements are in the form of yarn-shaped and/or tape-shaped polymer elements.

公开(公告)号：US12012694B2

公开(公告)日：2024-06-18

申请号：US17076294

申请日：2020-10-21

Applicant: Voith Patent GmbH

Inventor： Oliver Lüdtke

IPC: D21D5/04 ,  D21B1/34

CPC classification number: D21B1/347 ,  D21D5/04

Abstract: A pulper for circulating a fibrous stock suspension. The pulper includes at least one screen, having a screen surface which is provided with screen openings, and over which a rotor passes. The rotor is formed by a rotor head, to which a plurality of rotor blades are attached on the outer circumference. The rotor circle of the screen, which is passed over by the rotor wings, includes a plurality of bar-shaped elevations. In the process, pulping is to be improved, while wear is to be minimized, in that the angle of intersection between the working edge of the rotor blades pointing in the direction of rotation and the shear edge of the elevations pointing counter to the direction of rotation does not decrease radially outwardly.

公开(公告)号：US20240141590A1

公开(公告)日：2024-05-02

申请号：US18405613

申请日：2024-01-05

Applicant: Voith Patent GmbH

Inventor： Alexander Gloning ,  Christin Brück ,  Jonas Bergström ,  Matthias Höhsl

IPC: D21F11/00 ,  D21F9/00 ,  D21H27/00 ,  D21H27/02

CPC classification number: D21F11/006 ,  D21F9/00 ,  D21H27/002 ,  D21H27/02

Abstract: A method for producing a web of fibrous material, the method including the steps of: forming the web by a dry-laying process; pressing and consolidating the web in a press nip while the web lies between a first support element and a second support element, a contact surface of the first support element and a contact surface of the second support element respectively facing the web; forming at least one low-pressure zone and at least one high-pressure zone in the web by way of the contact surface of the first support element; and exerting upon the web in the at least one high-pressure zone a pressure of more than 10 MPa.

公开(公告)号：US20240141568A1

公开(公告)日：2024-05-02

申请号：US18406977

申请日：2024-01-08

Applicant: Voith Patent GmbH

Inventor： Thomas Ehl ,  Jonas Bergström

IPC: D04H1/732 ,  D04H1/26 ,  D21B1/02 ,  D21F9/00 ,  D21G9/00

CPC classification number: D04H1/732 ,  D04H1/26 ,  D21B1/028 ,  D21F9/00 ,  D21G9/0027

Abstract: A method for producing an air-laid product or a non-woven product from a starting material includes: comminuting starting material into a comminuted material in at least one comminution line by at least one comminuting device; feeding the comminuted material into at least one material buffer; removing the comminuted material from the at least one material buffer; metering the comminuted material by at least one metering device; supplying the comminuted material to at least one processing line with at least one defibration system in which the comminuted material is defiberized into a defiberized material; and feeding the defiberized material into a production machine and processing the defiberized material into an air-laid product or a non-woven fabric. The at least one metering device is controlled in such a way that a continuous mass flow of defiberized material is supplied to the production machine.

公开(公告)号：US20240076833A1

公开(公告)日：2024-03-07

申请号：US18503502

申请日：2023-11-07

Applicant: Voith Patent GmbH

Inventor： Franz Grohmann ,  Christine Rinner ,  Werner Dobler ,  Martin Breineder

IPC: D21F3/08 ,  C08G18/44 ,  C08G18/76 ,  C08J5/12 ,  D21F3/10 ,  D21G1/00

CPC classification number: D21F3/08 ,  C08G18/44 ,  C08G18/7614 ,  C08G18/7685 ,  C08J5/12 ,  D21F3/105 ,  D21G1/0026 ,  D21G1/0233

Abstract: A roll cover and a roll in particular for use in a machine line for the production or processing of a fibrous web is provided, wherein the roll cover includes a radial outer functional layer which provides the surface of the roll cover in contact with the web, and wherein the functional layer has structural elements, in particular in the form of grooves and/or bores, wherein the functional layer is constructed of an elastomer material with a Poisson number greater than 0.4, between 0.45 and 0.5.

公开(公告)号：US11920303B2

公开(公告)日：2024-03-05

申请号：US17608607

申请日：2020-03-12

Applicant: Voith Patent GmbH

Inventor： Susanne Klaschka ,  Robert Eberhardt ,  Hubert Walkenhaus

IPC: D21F7/08 ,  D21F3/02 ,  D21F3/04 ,  D21F11/14

CPC classification number: D21F7/083 ,  D21F3/0272 ,  D21F3/045 ,  D21F11/14

Abstract: A fabric, in particular a felt, for use in a machine for producing a tissue web, has a base structure, which has a textile structure with MD threads, and at least one layer of nonwoven fibers. The MD threads predominantly or as a whole have a diameter ranging between 0.25 mm and 0.45 mm, in particular between 0.3 mm and 0.35 mm, and the thread density of the MD threads is more than 37%, in particular between 37% and 45%. There is also described a machine and a method for producing a tissue web using such a fabric.