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    Optical detection system for detecting a substance in a measurement region
    1.
    发明授权
    Optical detection system for detecting a substance in a measurement region 有权

    公开(公告)号：US12055483B2

    公开(公告)日：2024-08-06

    申请号：US17263747

    申请日：2019-07-23

    申请人： Dräger Safety AG & Co. KGaA

    发明人： Patrick Schmidt-Kaeding

    IPC分类号： G01N21/3504

    CPC分类号： G01N21/3504 ,  G01N2021/3513 ,  G01N2201/0631

    摘要： A detection system with a two-step homogenizing device (1) and with a receiver (42). Viewed in a field direction (54) of a photon field, the homogenizing device (1) is located between a measurement area (44) and the receiver (42). The homogenizing device (1) includes a first diffuser (10) and a second diffuser (12). The first diffuser (10) generates an intermediate photon field from an input photon field. The second diffuser (12) generates an output photon field from the intermediate photon field. The receiver (42) generates signals depending on the incident photon field.

    SYSTEM AND PROCESS FOR REMOTELY MONITORING A WORKPLACE
    4.
    发明公开
    SYSTEM AND PROCESS FOR REMOTELY MONITORING A WORKPLACE 审中-公开

    公开(公告)号：US20240105045A1

    公开(公告)日：2024-03-28

    申请号：US18359947

    申请日：2023-07-27

    申请人： Dräger Safety AG & Co. KGaA

    发明人： Thielo HAMMER ,  Simon HELBIG ,  Jürgen LANGER ,  Michael KREILMEIER ,  Georg PIEWALD ,  Mohamed IBRAHIM

    IPC分类号： G08B21/14 ,  G06V20/52

    CPC分类号： G08B21/14 ,  G06V20/52

    摘要： A system and a process enable a workplace (A.1, A.2) to be monitored remotely. A monitoring unit for the workplace includes a camera (2.1, 2.2, 2.3), a gas measuring device (1.1, 1.2, 1.3, 1.4) and a workplace computer (3.1, 3.2). A communication unit (10) communicates with a control center with a central output computer and an output unit. Signals from the camera and the gas measuring device are transmitted by cable or wirelessly to the workplace computer and from there further transmitted by cable or wirelessly to the communication unit. The signals are transmitted wirelessly from the communication unit to the central output computer. The central output computer causes the received signals to be output on the output unit in a form that can be perceived by a human. The data connection between the communication unit and the central output computer may be routed via a public mobile radio network.

    Device and process for detecting a gas, especially a hydrocarbon
    5.
    发明授权
    Device and process for detecting a gas, especially a hydrocarbon 有权

    公开(公告)号：US11841317B2

    公开(公告)日：2023-12-12

    申请号：US17518946

    申请日：2021-11-04

    申请人： Dräger Safety AG & Co. KGaA

    发明人： Andreas Flammiger

    IPC分类号： G01N21/31 ,  G01N33/00

    CPC分类号： G01N21/31 ,  G01N33/0047

    摘要： A gas detection device and process detect a target gas for monitoring an area for the target gas. A radiation source emits electromagnetic radiation (50) that penetrates the area and impinges on an array of filters (15, 25) that distributes the impinging radiation (50) onto a first gas photosensor (35), a second gas photosensor (37) and a reference photosensor (36). The first gas photosensor (35) is only sensitive to radiation in a first wavelength range, the second gas photosensor (37) is only sensitive to radiation in a second wavelength range and the reference photosensor (36) is only sensitive to radiation in a reference wavelength range. The wavelength ranges are spaced apart from one another. An analysis unit (10) analyzes signals [Sig(35), Sig(36), Sig(37)] from the three photosensors (35, 36, 37) and carries out three pair comparisons to determine whether or not the target gas is present.

    GAS DETECTION DEVICE AND GAS DETECTION PROCESS WITH A SENSOR AND WITH AN OXIDIZER
    6.
    发明公开
    GAS DETECTION DEVICE AND GAS DETECTION PROCESS WITH A SENSOR AND WITH AN OXIDIZER 审中-公开

    公开(公告)号：US20230341343A1

    公开(公告)日：2023-10-26

    申请号：US18302055

    申请日：2023-04-18

    申请人： Dräger Safety AG & Co. KGaA

    发明人： Malte BAESLER ,  Tom PÖTHIG

    IPC分类号： G01N27/04 ,  G01N1/44 ,  G01N33/00 ,  G01N31/12

    CPC分类号： G01N27/04 ,  G01N1/44 ,  G01N33/0027 ,  G01N31/12

    摘要： A gas detection device (100) and a process monitor an area for a combustible target gas. A gas sample (G) enters into a measuring chamber (9). A semiconductor sensor (1) including an electrically conductive sensor component (10) has an electrical detection variable that changes with decreasing concentration of the combustible target gas. An oxidation component (2) oxidizes combustible target gas in the measuring chamber. The detection variable is measured at a detection time, and the oxidation component is in a switched-on state or is switched on. The oxidation component oxidizes at least a part of the combustible target gas in the measuring chamber up to a reference time. The detection variable is measured again at the reference time. The difference between the measured value at the reference time and the measured value at the detection time is an indicator for the concentration of combustible target gas.

    Protective helmet
    8.
    外观设计
    Protective helmet 有权

    公开(公告)号：USD992215S1

    公开(公告)日：2023-07-11

    申请号：US29771111

    申请日：2021-02-19

    申请人： Dräger Safety AG & Co. KGaA

    设计人： Lennart Wenzel

    摘要： FIG. 1 is a front view of a protective helmet design showing my new design;
    FIG. 2 is a rear view thereof;
    FIG. 3 is a right side view thereof;
    FIG. 4 is a left side view thereof;
    FIG. 5 is a top view thereof;
    FIG. 6 is a bottom view thereof; and,
    FIG. 7 is a lower left perspective view thereof.
    The broken lines in the drawings depict portions of the protective helmet that form no part of the claimed design.

    FIXED-BED REACTOR, METHOD FOR PREPARING A FIXED-BED REACTOR, AND USE OF A FIXED-BED REACTOR
    10.
    发明申请
    FIXED-BED REACTOR, METHOD FOR PREPARING A FIXED-BED REACTOR, AND USE OF A FIXED-BED REACTOR 有权

    公开(公告)号：US20230025906A1

    公开(公告)日：2023-01-26

    申请号：US17954453

    申请日：2022-09-28

    申请人： Dräger Safety AG & Co. KGaA

    发明人： Jan BOECKMANN ,  Stefanie BRETT

    IPC分类号： G01N33/98 ,  B01J8/02

    摘要： A fixed bed (10) is provided for a fixed-bed reactor (100). The fixed bed (10) contains a particulate carrier and at least one reactive substance. The carrier is a silicate compound and the reactive substance is an organometallic pyridine compound. A method for preparing such a fixed bed is provided. The method includes the steps of preparing the carrier, preparing an impregnation and treating the carrier with the impregnation. In addition, a gas-measuring tube is provided with a correspondingly prepared fixed bed as well. A method uses organometallic pyridinium compounds, especially pyridinium dichromate, in a fixed-bed reactor for detecting alcohol compounds and for preparing formaldehyde and/or acetaldehyde.