Patents by Inventor Lothar Burchardt

Lothar Burchardt 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).

  • Materials for dewatering elements
    Patent number: 7513976
    Abstract: A material for dewatering elements at the wet end of a paper-making machine is disclosed. The material comprises an elastomeric polymer matrix, and a filler added to the matrix at a level of 10 to 50 percent by weight, and the material has a hardness according to Shore A between 60 and 85. The invention also relates to a dewatering element comprising such material, and to the use of such material for the preparation of a dewatering element.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: April 7, 2009
    Assignee: BTG Eclepens, S.A.
    Inventors: Silvano Freti, Lothar Burchardt, Günter Bellmann
  • Materials for dewatering elements
    Publication number: 20070068646
    Abstract: A material for dewatering elements at the wet end of a paper-making machine is disclosed. The material comprises an elastomeric polymer matrix, and a filler added to the matrix at a level of 10 to 50 percent by weight, and the material has a hardness according to Shore A between 60 and 85. The invention also relates to a dewatering element comprising such material, and to the use of such material for the preparation of a dewatering element.
    Type: Application
    Filed: November 17, 2004
    Publication date: March 29, 2007
    Inventors: Silvano Freti, Lothar Burchardt, Gunter Bellmann