Patents by Inventor Hartmut Kopp

Hartmut Kopp 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).

  • Nonwoven web and method of making same
    Patent number: 11655571
    Abstract: A nonwoven web is made by first depositing fibers as a nonwoven web in a deposition area, then conveying the web away from the deposition area in a web-travel direction, preconsolidating the web in the path, and passing the preconsolidated web between a pair of rollers that compress and final consolidate the preconsolidated web, One of the rollers is separated from the web such that final consolidation of the web at a starting level is stopped and at the same time or immediately beforehand upstream preconsolidation of the web increased. After separating the one roller from the web, another roller is engaged with the web at the consolidation station and then final consolidation is recommenced, whereupon upstream preconsolidation of the web is reduced back to the starting level.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: May 23, 2023
    Assignee: REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK
    Inventors: Detlef Frey, Hans-Georg Geus, Michael Maas, Martin Neuenhofer, Michael Nitschke, Christine Noack, Hartmut Kopp
  • NONWOVEN WEB AND METHOD OF MAKING SAME
    Publication number: 20200157715
    Abstract: A nonwoven web is made by first depositing fibers as a nonwoven web in a deposition area, then conveying the web away from the deposition area in a web-travel direction, preconsolidating the web in the path, and passing the preconsolidated web between a pair of rollers that compress and final consolidate the preconsolidated web. One of the rollers is separated from the web such that final consolidation of the web at a starting level is stopped and at the same time or immediately beforehand upstream preconsolidation of the web increased. After separating the one roller from the web, another roller is engaged with the web at the consolidation station and then final consolidation is recommenced, whereupon upstream preconsolidation of the web is reduced back to the starting level.
    Type: Application
    Filed: September 30, 2019
    Publication date: May 21, 2020
    Inventors: Detlef FREY, Hans-Georg Geus, Michael Maas, Martin Neuenhofer, Michael Nitschke, Christine Noack, Hartmut Kopp