Patents by Inventor Michael He?

Michael He? 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 producing a spunbonded nonwoven fabric
    Patent number: 7504062
    Abstract: A method and apparatus for the production of a spunbonded nonwoven fabric, by spinning a linear filament sheet of filaments arranged parallel next to one another, in the form of a curtain, from a plurality of spinning capillaries, with aerodynamic take-off and stretching of the filament sheet, where the filament sheet (8) that exits from the stretching channel (12) or is drawn off a spool is moved laterally, crosswise, by an air stream, the direction of which changes periodically, where the air stream is alternately directed at a slant to the filament sheet (8), seen in the horizontal plane.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: March 17, 2009
    Assignee: Carl Freudenberg KG
    Inventors: Engelbert Löcher, Michael Heβ