Patents by Inventor Kathrin Hermann

Kathrin Hermann 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: 7608177
    Abstract: An electrochemical gas sensor with a stacked arrangement of electrodes and nonwoven layers arranged in parallel, comprising at least one measuring electrode (3) and at least one counterelectrode (5). A porous membrane (8) that is permeable to air is in contact with the stacked arrangement of electrodes and nonwoven layers arranged in parallel at least on one side, at least one layer of a hydrophilic nonwoven (7) is located between the electrodes. The porous membrane (8) that is permeable to air and the hydrophilic nonwoven (7) extend into a separate equalization volume (9), which is filled with electrolyte at least partially and is located at least partially in one plane with the electrodes. The separate equalization volume (9) surrounds the electrode arrangement at least partially in this plane, and the porous membrane (8) that is permeable to air is exposed to ambient pressure at least in partial areas.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: October 27, 2009
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Andreas Nauber, Dieter Krüger, Michael Sick, Christoph Bernstein, Michael Dietrich, Hans-Jürgen Busack, Rigobert Chrzan, Kathrin Hermann
  • Publication number: 20060124458
    Abstract: An electrochemical gas sensor with a stacked arrangement of electrodes and nonwoven layers arranged in parallel, comprising at least one measuring electrode (3) and at least one counterelectrode (5). A porous membrane (8) that is permeable to air is in contact with the stacked arrangement of electrodes and nonwoven layers arranged in parallel at least on one side, at least one layer of a hydrophilic nonwoven (7) is located between the electrodes. The porous membrane (8) that is permeable to air and the hydrophilic nonwoven (7) extend into a separate equalization volume (9), which is filled with electrolyte at least partially and is located at least partially in one plane with the electrodes. The separate equalization volume (9) surrounds the electrode arrangement at least partially in this plane, and the porous membrane (8) that is permeable to air is exposed to ambient pressure at least in partial areas.
    Type: Application
    Filed: September 22, 2005
    Publication date: June 15, 2006
    Applicant: Drager Safety AG & Co. KGaA
    Inventors: Andreas Nauber, Dieter Kruger, Michael Sick, Christoph Bernstein, Michael Dietrich, Hans-Jurgen Busack, Rigobert Chrzan, Kathrin Hermann