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    METHOD AND DEVICE FOR OPERATING A VENTILATION SYSTEM FOR AIR IN AN INDOOR SPACE
    2.
    发明申请
    METHOD AND DEVICE FOR OPERATING A VENTILATION SYSTEM FOR AIR IN AN INDOOR SPACE 有权

    公开(公告)号：US20220243946A1

    公开(公告)日：2022-08-04

    申请号：US17584415

    申请日：2022-01-26

    Applicant: Carl Freudenberg KG

    Inventor： Uwe Haefner ,  Sascha Blauth ,  Maik Sieh

    IPC: F24F11/65 ,  B60H1/24 ,  F24F7/003 ,  F24F8/10 ,  F24F7/06 ,  F24F11/526 ,  F24F13/10

    Abstract: The invention relates to a method for operating a ventilation system for indoor air in an indoor space, in particular a motor vehicle. The method comprises the steps of: providing a fresh air portion of supplied fresh air and a recirculated air volume flow according to a predetermined or selected operating strategy; determining settings for a recirculated air actuator for adjusting a fresh air portion, in particular a recirculated air flap or a recirculated air valve, and a fan power of a fan for adjusting a mixed air volume flow (QM) of supplied recirculated and fresh air; increasing the fresh air portion and/or the mixed air volume flow (QM) as a function of a pathogen filtration efficiency of a cabin filter and a predetermined contamination prevention volume flow as a pathogenic indoor concentration limit value (CP) for a maximum concentration of pathogenic aerosols.

    FILTER ELEMENT
    4.
    发明申请
    FILTER ELEMENT 审中-公开

    公开(公告)号：US20180154298A1

    公开(公告)日：2018-06-07

    申请号：US15818812

    申请日：2017-11-21

    Applicant: Carl Freudenberg KG

    Inventor： Regina Brack ,  Uwe Haefner ,  Alexander Oelsner

    IPC: B01D46/52 ,  B01D46/00 ,  B01D39/14 ,  B60H3/06

    Abstract: In an embodiment, the present invention provides a filter element including: a bellows in the shape of a zig-zag having pleat walls and a pleat ridge, edges of the pleat walls and the pleat ridge being provided with edge elements; and a frame element being assigned to at least one end pleat of the bellows. The frame element surrounds the end pleat so as to form a positive fit on both sides, the frame element being fixed to the edge elements.

    ANTIVIRAL FILTER MEDIUM
    5.
    发明申请
    ANTIVIRAL FILTER MEDIUM 有权

    公开(公告)号：US20220008854A1

    公开(公告)日：2022-01-13

    申请号：US17367436

    申请日：2021-07-05

    Applicant: Carl Freudenberg KG

    Inventor： Uwe Haefner ,  Heiko Schacht ,  Ilker Uenen ,  Sascha Blauth

    IPC: B01D46/00 ,  A61L9/16 ,  B01D39/00

    Abstract: A method includes: using a planar substrate having at least one acid-functionalized layer including at least one first acid having a pks1 value of 0 to 7 and at least one different second acid or derivative thereof selected from a group consisting of C8 to C18 fatty acids, esters, amides, and mixtures thereof, as a filter medium for depleting viruses from air and other gases.

    Filter element
    6.
    发明授权
    Filter element 有权

    公开(公告)号：US10786773B2

    公开(公告)日：2020-09-29

    申请号：US15818812

    申请日：2017-11-21

    Applicant: Carl Freudenberg KG

    Inventor： Regina Brack ,  Uwe Haefner ,  Alexander Oelsner

    IPC: B01D46/00 ,  B01D46/52 ,  B01D39/14 ,  B60H3/06 ,  B01D46/10

    Abstract: In an embodiment, the present invention provides a filter element including: a bellows in the shape of a zig-zag having pleat walls and a pleat ridge, edges of the pleat walls and the pleat ridge being provided with edge elements; and a frame element being assigned to at least one end pleat of the bellows. The frame element surrounds the end pleat so as to form a positive fit on both sides, the frame element being fixed to the edge elements.

    ARRANGEMENT FOR DETECTING COUNTERFEIT PRODUCTS
    8.
    发明申请
    ARRANGEMENT FOR DETECTING COUNTERFEIT PRODUCTS 审中-公开
    检测产品的安排

    公开(公告)号：US20160307206A1

    公开(公告)日：2016-10-20

    申请号：US15100320

    申请日：2014-10-20

    Applicant: CARL FREUDENBERG KG

    Inventor： Knuth Fickartz ,  Uwe Haefner

    IPC: G06Q30/00 ,  G06K9/68

    CPC classification number: G06Q30/0185 ,  G06K9/00771 ,  G06K9/68 ,  G06Q10/0833 ,  G06Q10/087

    Abstract: An arrangement has a device which has at least one individualizing feature, detecting unit for detecting the individualizing feature, and a data storage unit in which the individualizing feature is stored and uniquely assigned to the device. The arrangement can reliably ascertain the authenticity of a product. The individualizing feature can be detected by the detecting unit and compared to the stored individualizing feature, which has already been stored in the data storage unit.

    Abstract translation: 一种装置具有至少一个个性化特征的装置，用于检测个性化特征的检测单元，以及个性化特征被存储并唯一地分配给该装置的数据存储单元。 该安排可以可靠地确定产品的真实性。 个性化特征可以由检测单元检测并与已经存储在数据存储单元中的存储的个性化特征进行比较。

    FILTER MEDIUM FOR DEACTIVATING PATHOGENS AND/OR ALLERGENS
    10.
    发明申请
    FILTER MEDIUM FOR DEACTIVATING PATHOGENS AND/OR ALLERGENS 有权

    公开(公告)号：US20220152533A1

    公开(公告)日：2022-05-19

    申请号：US17530518

    申请日：2021-11-19

    Applicant: Carl Freudenberg KG

    Inventor： Ulrich Stahl ,  Uwe Haefner ,  Heiko Schacht

    IPC: B01D39/08 ,  B01D46/54

    Abstract: The present invention relates to a filter medium, a filter arrangement for the filtration of gas-particle systems comprising such a filter medium, a method for depleting pathogens and/or allergens from the air and other gases by means of such a filter medium, and the use of the filter medium for depleting pathogens and/or allergens from the air and other gases. The filter medium includes at least one acid-functionalized layer comprising at least one carrier material and at least one fruit acid having a pks1 value of 0 to 7. The at least one acid-functionalized layer is free of added C8 to C18 fatty acids and their esters and amides thereof. The at least one acid-functionalized layer contains the at least one fruit acid in an amount of 2 wt. % to 30 wt. %, based on the total weight of the at least one acid-functionalized layer.

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