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    Filter cleaning
    4.
    发明授权
    Filter cleaning 有权

    公开(公告)号：US11779179B2

    公开(公告)日：2023-10-10

    申请号：US17857756

    申请日：2022-07-05

    申请人： Hilti Aktiengesellschaft

    发明人： Oliver Ohlendorf

    IPC分类号： B01D46/04 ,  A47L9/20 ,  A47L9/10 ,  B01D46/42 ,  B01D46/71 ,  B01D46/90 ,  B01D46/24 ,  A47L9/12 ,  B01D46/52 ,  A47L9/22

    CPC分类号： A47L9/20 ,  A47L9/10 ,  B01D46/04 ,  B01D46/4272 ,  B01D46/71 ,  B01D46/90 ,  A47L9/127 ,  A47L9/22 ,  B01D46/2411 ,  B01D46/521 ,  B01D2279/55

    摘要： A filter device for a vacuum cleaner having a turbine device for generating at least one first and one second main air flow through at least a portion of the vacuum cleaner having and a control unit. The filter device has a first chamber including a first filter element, a first outflow opening, a first inlet opening and a first pressure surge element dividing the first chamber into a first chamber first space and a first chamber second space and reversibly movable between a first pressure surge element first position and a first pressure surge element second position, and a second chamber including a second filter element, a second outflow opening, a second inlet opening and a second pressure surge element dividing the second chamber into a second chamber first space and a second chamber second space reversibly movable between a second pressure surge element first position and a second pressure surge element second position.

    REMOVAL OF PART OF A PARTICLE COLLECTION DEVICE
    5.
    发明公开
    REMOVAL OF PART OF A PARTICLE COLLECTION DEVICE 审中-公开

    公开(公告)号：US20240058737A1

    公开(公告)日：2024-02-22

    申请号：US18039622

    申请日：2021-12-14

    申请人： EOS GMBH ELECTRO OPTICAL SYSTEMS

    发明人： Ulrich Kleinhans ,  Philip Stroebel ,  Christoph Schmutzler ,  Marbod Kindermann

    IPC分类号： B01D46/90 ,  B01D46/48

    CPC分类号： B01D46/90 ,  B01D46/48

    摘要： The invention concerns a method for the removal of a part (41, 55) of a particle collecting device (40, 41, 42, 55), which part is loaded with at least highly flammable particles (51). The part (41, 55) is removed from a process gas cleaning device (100) of an additive manufacturing device (1) by means of the following steps. An inert gas (50, 250) which substantially encloses the particles (51) is provided. The part (41, 55) of the particle collecting device (40, 41, 42, 55), is removed from the process gas cleaning device (100), wherein the particles (51) remain enclosed in the inert gas (50, 250).