Patents by Inventor Anders Tennby

Anders Tennby 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).

  • Method and device for fixing pieces of material on a continuous web
    Patent number: 6471804
    Abstract: The invention relates to a device and a method for producing a material laminate (1) by fixing pieces of material (2) at a given distance from one another on a first continuously advanced material web (4). The invention is characterized in that the pieces of material (2) are cut from a second continuous web (7) in a first station (3) and are conveyed via a transport device (10) to the first web (4), to which the piece of material (2) is attached by means of ultrasonic welding over a limited attachment area (5) on the pieces of material (2), and the pieces of material (2) are subsequently fixed to the material web (4) by ultrasonic welding in a second station (6). The second station comprises an ultrasonic horn (18) at a fixed distance from a stay (19) designed as a rotating drum with a patterned outer surface.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: October 29, 2002
    Assignee: SCA Hygiene Products AB
    Inventors: Anders Tennby, Thomas Åberg, Bo Thornström, Kenneth Henriksson, Roy Hansson