Patents Assigned to Knauf
  • Wedge box of alveolar material mould and process for its production
    Patent number: 6186354
    Abstract: A wedge box of alveolar material having a container and a lid. The container or the lid includes a window which is transparent and which is integrated and molded in the alveolar material to permit viewing the contents of the box. The box is molded by means of a mold having two cavities which include several raised surfaces. The raised surfaces are separated by a space which permit gripping of a transparent member which is to be integrated into the box as a window. Alveolar material is introduced into the molding cavity and is then expanded.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: February 13, 2001
    Assignee: Knauf
    Inventor: René Claude Pascal