Patents Assigned to Wangner GmbH
  • Patent number: 8444825
    Abstract: A sieve for the wet-end section of a paper machine is described, in which the sieve has been compressed by at least one of increased temperature, pressure and/or moisture. Such a treatment leads to a sieve which has at least one side wherein the thread floats and knuckles are reshaped and the sieve presents at least one substantially flatter surface for the production of paper. This process does not cause any physical damage to the surface of the sieve, as current techniques of abrasively polishing the surface do, and therefore leads to cloths with improved properties and lifetimes.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: May 21, 2013
    Assignee: Wangner GmbH
    Inventors: Joachim Pitzler, Oliver Baumann
  • Patent number: 7727360
    Abstract: A sieve for the wet-end section of a paper machine is described, in which the sieve has been compressed by at least one of increased temperature, pressure and/or moisture. Such a treatment leads to a sieve which has at least one side wherein the thread floats and knuckles are reshaped and the sieve presents at least one substantially flatter surface for the production of paper. This process does not cause any physical damage to the surface of the sieve, as current techniques of abrasively polishing the surface do, and therefore leads to cloths with improved properties and lifetimes.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: June 1, 2010
    Assignee: Wangner GmbH
    Inventors: Joachim Pitzler, Oliver Baumann