Patents by Inventor Ewald Wetschenbacher

Ewald Wetschenbacher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10793393
    Abstract: The invention relates to a spool for winding a fibrous web, the lateral surface of which is formed by a coated spool core. The aim of the invention is to improve the winding quality by the fact that the outer lateral surface is formed by a plurality of separate coatings which are arranged axially next to one another, of which at least two adjacent coatings are made of different materials.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: October 6, 2020
    Assignee: Voith Patent GmbH
    Inventors: Malte Müller, Matthias Wohlfahrt, Ewald Wetschenbacher, Ralf-Harald Preising
  • Publication number: 20180265326
    Abstract: The invention relates to a spool for winding a fibrous web, the lateral surface of which is formed by a coated spool core. The aim of the invention is to improve the winding quality by the fact that the outer lateral surface is formed by a plurality of separate coatings which are arranged axially next to one another, of which at least two adjacent coatings are made of different materials.
    Type: Application
    Filed: May 18, 2018
    Publication date: September 20, 2018
    Applicant: Voith Patent GmbH
    Inventors: Malte Müller, Matthias Wohlfahrt, Ewald Wetschenbacher, Ralf-Harald Preising
  • Patent number: 7278603
    Abstract: A winding apparatus for transferring a web from a carrier drum to a spool. Pressure between the spool and the carrier drum is higher in the area of the feed strip of the web by applying a higher contact force, or by orienting the spool and drum at an angle to one another.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: October 9, 2007
    Assignee: Voith Paper Patent GmbH
    Inventors: Wolfgang Drefs, Ewald Wetschenbacher, Zygmund Madrzak, Jorg Maurer
  • Publication number: 20060006273
    Abstract: A winding apparatus for transferring a web from a carrier drum to a spool. Pressure between the spool and the carrier drum is higher in the area of the feed strip of the web by applying a higher contact force, or by orienting the spool and drum at an angle to one another.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 12, 2006
    Inventors: Wolfgang Drefs, Ewald Wetschenbacher, Zygmund Madrzak, Jorg Maurer
  • Patent number: 6739545
    Abstract: Process and apparatus for winding a running material web, in particular a paper or cardboard web, in which the running material web is wound consecutively on several winding cores, in particular reel spools. At least one cut is made preferably running parallel to the web edge of the running material web and in the web travel direction of the running material web. After the started at least one cut has run through the nip formed by the winding roll and the new winding core, the at least one formed transfer strip which is incorporated in the running material web is detached from the outer circumferential area of the winding roll by at least one directed high-energy air jet that is generated briefly by at least one separator device and simultaneously cuts through. Subsequently, the at least one now detached transfer strip is transferred onto, and preferably applied to, the outer circumferential area of the new winding core by at least one first blower device, in particular a blower shoe.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: May 25, 2004
    Assignee: Voith Paper Patent GmbH
    Inventors: Wolfgang Drefs, Ewald Wetschenbacher, Zygmunt Madrzak, Joerg Maurer
  • Publication number: 20030025028
    Abstract: Process and apparatus for winding a running material web, in particular a paper or cardboard web, in which the running material web is wound consecutively on several winding cores, in particular reel spools. At least one cut is made preferably running parallel to the web edge of the running material web and in the web travel direction of the running material web. After the started at least one cut has run through the nip formed by the winding roll and the new winding core, the at least one formed transfer strip which is incorporated in the running material web is detached from the outer circumferential area of the winding roll by at least one directed high-energy air jet that is generated briefly by at least one separator device and simultaneously cuts through. Subsequently, the at least one now detached transfer strip is transferred onto, and preferably applied to, the outer circumferential area of the new winding core by at least one first blower device, in particular a blower shoe.
    Type: Application
    Filed: July 29, 2002
    Publication date: February 6, 2003
    Applicant: VOITH PAPER PATENT GmbH
    Inventors: Wolfgang Drefs, Ewald Wetschenbacher, Zygmunt Madrzak, Joerg Maurer
  • Patent number: 6390408
    Abstract: Device and process for winding a material web onto a winding core to form a wound reel. The device includes a reeling drum positionable against a winding core or a wound roll to form a winding nip, a secondary transport device to displace the winding core/wound roll along a path of travel, and a pressure device and an air squeezing element. Secondary transport device carries air squeezing element and pressure device, and pressure device is arranged to press air squeezing element against wound reel prior to a reel change. A primary transport device moves a new, still-empty reel spool into an initial winding position, and a lift device is coupled to air squeezing element and pressure device and to secondary transport device. Lift device is arranged to move air squeezing element and pressure device to distance from a rotational axis of wound reel which corresponds to a current layer thickness.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: May 21, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Zygmunt Madrzak, Ewald Wetschenbacher