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    DUST EXTRACTION UNIT
    1.
    发明申请
    DUST EXTRACTION UNIT 有权

    公开(公告)号：US20210121814A1

    公开(公告)日：2021-04-29

    申请号：US17077278

    申请日：2020-10-22

    申请人： RVT Group Limited

    发明人： Timothy Chattell

    IPC分类号： B01D46/10 ,  B01D46/52 ,  B01D46/00

    摘要： A dust extraction unit is disclosed including a first and a second air filter removable and mountable within the dust extraction unit and a body defining an air flow path which passes through the first and the second air filters when the first and the second air filters are mounted within the body of the dust extraction unit. The body of the dust extraction unit comprises a first portion operable to receive the first air filter and a second portion operable to receive the second air filter. The first and second portions are connected by a hinge so that the first portion is moveable between a first configuration in which the first and second portion define an air flow path though the dust extraction unit and a second configuration which provides access to the portion of the dust extraction unit operable to receive the second air filter.

    Acoustic barrier and method of pile driving
    2.
    发明授权
    Acoustic barrier and method of pile driving 有权

    公开(公告)号：US09963850B2

    公开(公告)日：2018-05-08

    申请号：US15317464

    申请日：2015-06-12

    申请人： RVT GROUP LIMITED

    发明人： Timothy Chattell

    IPC分类号： E02D13/00 ,  G10K11/162

    CPC分类号： E02D13/005 ,  G10K11/162

    摘要： There is disclosed an acoustic barrier (40) for use in a pile driving method in which a pile (I0) is driven into the ground 60, the acoustic barrier (40) comprising: an acoustic dampening layer (42); and a magnetic element (36); wherein the acoustic barrier (40) is arranged to be at least partly wrapped around an axial portion of the pile (I0) so that the acoustic dampening layer (42) at least partly surrounds the axial portion of the pile (I0), and wherein the magnetic element (36) is arranged to releasably secure the acoustic barrier (40) to the pile (I0). There is also disclosed a pile driving method comprising wrapping the acoustic barrier (40) around an axial portion of a pile (I0), driving an axial length of the pile (I0) into the ground, and removing or repositioning the acoustic barrier (40). There is also disclosed an acoustic barrier for a pile driving hammer having a support frame which can be detachable attached to the hammer.

    Dust extractor
    3.
    外观设计
    Dust extractor 有权

    公开(公告)号：USD1043004S1

    公开(公告)日：2024-09-17

    申请号：US29783295

    申请日：2021-05-12

    申请人： RVT Group Limited

    设计人： Tim Chattell

    摘要： FIG. 1 is a first side elevational view of a dust extractor of Applicant's design in a first position;
    FIG. 2 is a second side elevational view thereof, the second side being opposite the first side;
    FIG. 3 is a third side elevational view thereof;
    FIG. 4 is a fourth side elevational view thereof, the fourth side being opposite the third side;
    FIG. 5 is a top plan view thereof;
    FIG. 6 is a perspective view thereof;
    FIG. 7 is a first side elevational view of the dust extractor of Applicant's design in a second position whereby a portion is pivoted relative to that shown for the first position;
    FIG. 8 is a second side elevational view thereof in the second position, the second side being opposite the first side;
    FIG. 9 is a third side elevational view thereof in the second position;
    FIG. 10 is a fourth side elevational view thereof in the second position, the fourth side being opposite the third side;
    FIG. 11 is a top plan view thereof in the second position; and,
    FIG. 12 is a perspective view thereof in the second position.
    The broken lines depict portions of the dust extractor that form no part of the claimed design.

    Dust extraction unit
    4.
    发明授权
    Dust extraction unit 有权

    公开(公告)号：US11969684B2

    公开(公告)日：2024-04-30

    申请号：US17077278

    申请日：2020-10-22

    申请人： RVT Group Limited

    发明人： Timothy Chattell

    IPC分类号： B01D46/00 ,  B01D46/10 ,  B01D46/52 ,  B01D46/64

    CPC分类号： B01D46/10 ,  B01D46/0005 ,  B01D46/0013 ,  B01D46/522 ,  B01D46/64 ,  B01D2267/30 ,  B01D2267/70 ,  B01D2279/50

    摘要： A dust extraction unit is disclosed including a first and a second air filter removable and mountable within the dust extraction unit and a body defining an air flow path which passes through the first and the second air filters when the first and the second air filters are mounted within the body of the dust extraction unit. The body of the dust extraction unit includes a first portion operable to receive the first air filter and a second portion operable to receive the second air filter. The first and second portions are connected by a hinge so that the first portion is moveable between a first configuration in which the first and second portion define an air flow path through the dust extraction unit and a second configuration which provides access to the portion of the dust extraction unit operable to receive the second air filter.