Patents by Inventor Klaus Leister

Klaus Leister 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).

  • Publication number: 20140065498
    Abstract: A filter module (1) for cleaning a fluid, including a housing (2) with an inlet opening (3) and an outlet opening (4), wherein the housing (2) forms an accommodation space (5) in which at least one filter element (6) is accommodated, wherein the filter element (6) exhibits a filter medium (7) which is configured like a block in view of the problem of configuring a filter model such that the dead space in the housing is as small as possible, that the filter module has good filter performance and a cost-effective as well as time-saving fabrication and offers effective use of a filter medium, characterized in that the filter medium (7) is pleated and is telescoped into a block (8).
    Type: Application
    Filed: August 20, 2013
    Publication date: March 6, 2014
    Applicant: CARL FREUDENBERG KG
    Inventors: Thomas FISCHER, Hannes CLASEN, Uwe FELBER, Klaus LEISTER
  • Publication number: 20120260616
    Abstract: A replaceable filter module is configured to be flanged to a wall of a housing that holds a fuel cell. The filter module includes a filter element with a filter medium and at least one of a seal and sealing elements. The seal includes one of a key-and-lock connection, a plug-and-socket connection, and a tongue-and-groove connection.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 18, 2012
    Applicant: CARL FREUDENBERG KG
    Inventors: Klaus Leister, Hannes Clasen, Thomas Fischer
  • Patent number: 8181943
    Abstract: A humidifier (1), including at least one housing (2), in which multiple fibers (3) constructed as water-permeable hollow fiber membranes are arranged, wherein a first air stream (4) is passed inside the fibers (3) and a second air stream (5) is passed outside the fibers (3), and wherein the housing (2) is of flattened design.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: May 22, 2012
    Assignee: Carl Freudenberg KG
    Inventors: Klaus Leister, Harald Ehrentraut
  • Patent number: 8104747
    Abstract: A humidifier including a housing which is used to receive a humidifier module. The housing can be connected by the housing cover and is provided with at least one first sealing element, which seals the humidifier module in relation to the housing. The humidifier module is arranged in an axially displaceable manner on the first sealing element.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: January 31, 2012
    Assignee: Carl Freudenberg KG
    Inventors: Udo Eping, Franz Schneider, Klaus Leister, Stefan Geiss, Joachim Wolf, Volker Senne, Harald Ehrentraut, Bernd Altmueller
  • Patent number: 8104748
    Abstract: Disclosed is a hollow fiber system for a humidifier, including hollow fibers that are permeable to steam. A first air flow can be conducted within the hollow fibers while a second air flow can be conducted outside the hollow fibers. The hollow fibers are located at least in part at a distance from each other via a device (6) that is disposed between the hollow fibers, respectively.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: January 31, 2012
    Assignee: Carl Freudenberg KG
    Inventor: Klaus Leister
  • Publication number: 20090301308
    Abstract: A filter arrangement for cleaning fuel cell supply air, including at least two filter layers, whereby a first filter layer is designed as a coarse filter and a second filter layer as a fine filter, wherein the second filter layer includes an electret filter material.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 10, 2009
    Applicant: Carl Freudenberg
    Inventors: Klaus Leister, Verena Huecker, Dieter Hintenlang
  • Publication number: 20090121366
    Abstract: A humidifier (1), including at least one housing (2), in which multiple fibres (3) constructed as water-permeable hollow fibre membranes are arranged, wherein a first air stream (4) is passed inside the fibres (3) and a second air stream (5) is passed outside the fibres (3), and wherein the housing (2) is of flattened design.
    Type: Application
    Filed: February 24, 2006
    Publication date: May 14, 2009
    Applicant: Carl Freudenberg KG
    Inventors: Klaus Leister, Harald Ehrentraut
  • Publication number: 20090117415
    Abstract: Arrangement (1) for supplying a fuel cell (2) with recycled reaction gas (3), comprising a humidifier (4) with a first inlet (5) for the reaction gas to be humidifed (3) and a second inlet (6) for the moisture carrier (7), a filter arrangement (8) being pre-connected to the first inlet (5) and/or the second inlet (6).
    Type: Application
    Filed: September 5, 2006
    Publication date: May 7, 2009
    Applicant: Carl Freudenberg KG
    Inventors: Klaus Leister, Verena Huecker
  • Publication number: 20090115078
    Abstract: Disclosed is a hollow fiber system for a humidifier, including hollow fibers that are permeable to steam. A first air flow can be conducted within the hollow fibers while a second air flow can be conducted outside the hollow fibers. The hollow fibers are located at least in part at a distance from each other via a device (6) that is disposed between the hollow fibers, respectively.
    Type: Application
    Filed: May 4, 2006
    Publication date: May 7, 2009
    Applicant: CARL FREUDENBERG KG
    Inventor: Klaus Leister
  • Publication number: 20090108476
    Abstract: A humidifier including a housing which is used to receive a humidifier module. The housing can be connected by the housing cover and is provided with at least one first sealing element, which seals the humidifier module in relation to the housing. The humidifier module is arranged in an axially displaceable manner on the first sealing element.
    Type: Application
    Filed: August 18, 2006
    Publication date: April 30, 2009
    Applicant: Carl Freudenberg KG
    Inventors: Udo Eping, Franz Schneider, Klaus Leister, Stefan Geiss, Joachim Wolf, Volker Senne, Harald Ehrentraut, Bernd Altmueller