Patents by Inventor Hans-Willi Kessels

Hans-Willi Kessels 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).

  • Process and device for coating a glass sheet with a flexible film
    Patent number: 5148574
    Abstract: For coating a glass sheet (1) with a flexible transparent film (2) glass sheet (1) and film (2) are brought together at an acute angle .alpha. and are continuously moved together. In the area ahead of the contact of film (2) with glass sheet (1) a continuously movable hollow space (8) is created with the help of a slot nozzle (3) which is in sliding contact on the one side with glass sheet (1) and on the other side with film (2). Air is continuously sucked from this hollow space (8) with the help of slot nozzle (3). By the resulting pressure difference acting on film (2), film (2) is preliminarily bonded to glass sheet (1). This preliminary bonding is followed by a final bonding by use of increased temperature and increased pressure.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: September 22, 1992
    Assignee: Saint-Gobain Vitrage
    Inventors: Klemens Leclere, Hans-Willi Kessels, Friedhelm Hammes
  • Process for laminating a glass or plastic sheet with a flexible film
    Patent number: 5100493
    Abstract: For coating a glass sheet (1) with a flexible transparent film (2) glass sheet (1) and film (2) are brought together at an acute angle .alpha. and are continuously moved together. In the area ahead of the contact of film (2) with glass sheet (1) a continuously movable hollow space (8) is created with the help of a slot nozzle (3) which is in sliding contact on the one side with glass sheet (1) and on the other side with film (2). Air is continuously sucked from this hollow space (8) with the help of slot nozzle (3). By the resulting pressure difference acting on film (2), film (2) is preliminarily bonded to glass sheet (1). This preliminary bonding is followed by a final bonding by use of increased temperature and increased pressure.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: March 31, 1992
    Assignee: Saint-Gobain Vitrage
    Inventors: Klemens Leclere, Hans-Willi Kessels, Friedhelm Hammes