Patents by Inventor Ulrich Mertgen

Ulrich Mertgen 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).

  • Patent number: 6604926
    Abstract: In an apparatus for and method of producing absorbent pads from a flock-air mixture which is fed through a feed conduit to a shaping recess carrier to form the respective absorbent pad, the carrier rotates or circulates in a predetermined direction of operation. For excess air in the region of the flock-laying device is to be sucked away in a simple fashion without adversely affecting the process of shaping the absorbent pad, the feed conduit feeding the flock-air mixture to the carrier is branched into at least first and second conduits, the first conduit carrying a first partial flow of the mixture and the second conduit carrying a second partial flow thereof. The first and second conduits are directed on to the carrier in such a way that the second partial flow meets the carrier substantially downstream of the first partial flow in the direction of operation of the carrier.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: August 12, 2003
    Assignee: Winkler + Dünnebier Aktiengesellschaft
    Inventors: Armin Geisen, Ulrich Mertgen, Sascha Haase
  • Patent number: 6497009
    Abstract: In an apparatus and a process for preparing a flock-air mixture which is fed by a pulping device through a feed conduit to a flock-laying device for forming an absorbent pad, the feed conduit includes a dispersing device for loosening up lumps of flock within the mixture. To achieve a high level of efficiency in loosening the flock lumps, as independently as possible of the through-put of the mixture through the feed conduit, the dispersing device is in the form of a pneumatic dispersing device which loosens up the lumps by accelerating the mixture with lumps therein to cause the lumps to burst or tear apart.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: December 24, 2002
    Assignee: Winkler & Dunnebier Aktiengesellschaft
    Inventors: Armin Geisen, Ulrich Mertgen, Sascha Haase
  • Publication number: 20020003316
    Abstract: In an apparatus for and method of producing absorbent pads from a flock-air mixture which is fed through a feed conduit to a shaping recess carrier to form the respective absorbent pad, the carrier rotates or circulates in a predetermined direction of operation. For excess air in the region of the flock-laying device is to be sucked away in a simple fashion without adversely affecting the process of shaping the absorbent pad, the feed conduit feeding the flock-air mixture to the carrier is branched into at least first and second conduits, the first conduit carrying a first partial flow of the mixture and the second conduit carrying a second partial flow thereof. The first and second conduits are directed on to the carrier in such a way that the second partial flow meets the carrier substantially downstream of the first partial flow in the direction of operation of the carrier.
    Type: Application
    Filed: May 9, 2001
    Publication date: January 10, 2002
    Inventors: Armin Geisen, Ulrich Mertgen, Sascha Haase
  • Publication number: 20020002760
    Abstract: In an apparatus and a process for preparing a flock-air mixture which is fed by a pulping device through a feed conduit to a flock-laying device for forming an absorbent pad, the feed conduit includes a dispersing device for loosening up lumps of flock within the mixture. To achieve a high level of efficiency in loosening the flock lumps, as independently as possible of the through-put of the mixture through the feed conduit, the dispersing device is in the form of a pneumatic dispersing device which loosens up the lumps by accelerating the mixture with lumps therein to cause the lumps to burst or tear apart.
    Type: Application
    Filed: May 9, 2001
    Publication date: January 10, 2002
    Inventors: Armin Geisen, Ulrich Mertgen, Sascha Haase