Patents Represented by Attorney Doreen J. Gridlev

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  • Paper machine felt with enhanced two-sided structure
    Patent number: 6159880
    Abstract: A felt provides a uniform paper-supporting surface having good water storage and water release properties. These qualities are effected by a bat including one or more layers of fine fibers being needled onto a base containing perforations and cavities. The free surfaces of the bat fibers needled into the cavities are reduced in a special production step following the needling operation.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: December 12, 2000
    Inventor: Christian Schiel