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    Pick hole guard for manhole covers
    1.
    发明授权
    Pick hole guard for manhole covers 有权

    公开(公告)号：US09909276B2

    公开(公告)日：2018-03-06

    申请号：US15238637

    申请日：2016-08-16

    申请人： 6672205 CANADA INCORPORATED

    发明人： Tina Thompson ,  Ted Gilligan ,  Mark Taylor

    IPC分类号： E02D29/14

    CPC分类号： E02D29/1481 ,  E02D29/14 ,  E02D29/1418 ,  E02D29/1427 ,  E02D2200/1628

    摘要： Pick hole guards are provided for use in guarding pick holes on manhole covers. In some embodiments of the present disclosure, the pick hole guards can have a base, biasing member, and guard member. The biasing member can be attached to the base and guard member, and can bias the guard member toward a pick hole on the manhole cover to guard the pick hole. In other embodiments, the pick hole guards do not have movable guard members, but instead have retaining surfaces to serve as a receptacle for catching waste disposed through a pick hole.

    Pick hole guard for manhole covers
    2.
    发明授权
    Pick hole guard for manhole covers 有权

    公开(公告)号：US09447559B2

    公开(公告)日：2016-09-20

    申请号：US14050079

    申请日：2013-10-09

    申请人： 6672205 CANADA INCORPORATED

    发明人： Tina Thompson

    IPC分类号： E02D29/14

    CPC分类号： E02D29/1481 ,  E02D29/14 ,  E02D29/1418 ,  E02D29/1427 ,  E02D2200/1628

    摘要： Pick hole guards are provided for use in guarding pick holes on manhole covers. In some embodiments of the present invention, the pick hole guards can have a base, biasing member, and guard member. The biasing member can be attached to the base and guard member, and can bias the guard member toward a pick hole on the manhole cover to guard the pick hole. In other embodiments, the pick hole guards do not have movable guard members, but instead have retaining surfaces to serve as a receptacle for catching waste disposed through a pick hole.

    Concrete variable cross-section prefabricated square pile
    3.
    发明授权
    Concrete variable cross-section prefabricated square pile 有权

    公开(公告)号：US12065801B2

    公开(公告)日：2024-08-20

    申请号：US17639882

    申请日：2020-05-20

    申请人： Zhaodi Zhou

    发明人： Zhaodi Zhou

    IPC分类号： E02D5/30 ,  E02D5/48

    CPC分类号： E02D5/48 ,  E02D5/30 ,  E02D2200/1628 ,  E02D2300/002

    摘要： A concrete variable cross-section prefabricated square pile comprises pile bodies of large cross-section sections and small cross-section sections alternately arranged along a longitudinal direction. Lateral transition surfaces are formed between side surfaces of the large cross-section sections and adjacent small cross-section sections; at least part of the lateral transition surfaces have a front edge and/or a rear edge that are offset from a vertical direction in a lateral projection, and a vertical projection of an intersection line between the lateral transition surface and a first horizontal plane is located outside a vertical projection of an intersection line between the lateral transition surface and a second horizontal plane; the first horizontal plane is a horizontal plane located above in any two horizontal planes, and the second horizontal plane is a horizontal plane located below in any two horizontal planes.

    APPARATUS FOR BI-DIRECTIONAL LOAD TESTING OF DRIVEN PILES AND INJECTION PILES, AND METHOD THEREOF
    6.
    发明申请
    APPARATUS FOR BI-DIRECTIONAL LOAD TESTING OF DRIVEN PILES AND INJECTION PILES, AND METHOD THEREOF 审中-公开
    用于驱动桩和注射桩的双向负载试验的装置及其方法

    公开(公告)号：US20170073922A1

    公开(公告)日：2017-03-16

    申请号：US15121830

    申请日：2015-01-30

    申请人： WILL N WELL PROPERTY SDN BHD

    发明人： Yee Kong WAI

    IPC分类号： E02D33/00 ,  E02D7/02

    CPC分类号： E02D33/00 ,  E02D7/02 ,  E02D2200/1628 ,  E02D2200/165 ,  E02D2200/1678 ,  E02D2200/1685 ,  E02D2600/10 ,  E02D2600/20 ,  G01N3/10 ,  G01N2203/0042

    摘要： An apparatus for carrying out bi-directional load testing of close ended driven piles and injection piles utilizing a hydraulic jack, comprising an enclosure for housing the hydraulic jack (13). The enclosure (1) includes a first hollow body (10) a second hollow body (15). The first hollow body (10) had a covered upper end (10a) and an open lower end (10b), with the upper end being capped by an attached top plate (11) having an external surface (11a) which the lower end (81b) of a first pile (81) may be axially attached to, and an internal surface (11b). The open lower end (10b) has a cut-out (12) originating on the edge of the open end (10b) of the first hollow body for receiving a hydraulic connection (14) for the jack (13). The second hollow body (15) is capable of housing the hydraulic jack (13), has an open upper end (15a) and a lower end (15b). The lower end (15b) is capped by an attached base plate (17) having an external surface (17a) which the upper end (82a) of a second pile (82) may be axially attached to, and an internal surface (17b) for attaching the base (13a) of the hydraulic jack, and an opening (16) on the capped lower end (15b) originating at a point where the edge of the lower end (15b) abuts the base plate (17) for receiving the hydraulic connection (14) for the jack. The first hollow body (10) and the second hollow body (15) are capable of axial movement relative to one another when actuated by the hydraulic jack.

    摘要翻译： 一种用于使用液压千斤顶执行封闭式驱动桩和注射桩的双向载荷测试的装置，包括用于容纳液压千斤顶（13）的外壳。 外壳（1）包括第一空心体（10），第二空心体（15）。 第一中空体（10）具有被覆盖的上端（10a）和开口的下端（10b），上端由附接的顶板（11）盖住，顶板具有外表面（11a），下表面 81b）可以轴向地附接到内表面（11b）上。 开放的下端（10b）具有始端（12），该切口（12）起始于第一中空体的开口端（10b）的边缘，用于接收用于千斤顶（13）的液压连接（14）。 第二空心体（15）能够容纳液压千斤顶（13），具有敞开的上端（15a）和下端（15b）。 下端（15b）由具有外表面（17a）的附接基板（17）封盖，第二堆（82）的上端（82a）可以轴向附着到外表面（17a）上，内表面（17b） 用于安装液压千斤顶的基座（13a），以及在下端（15b）的边缘与基板（17）邻接的点处的封盖下端（15b）上的开口（16），用于接收 液压连接（14）用于千斤顶。 当由液压千斤顶致动时，第一空心体（10）和第二中空体（15）能够相对于彼此轴向移动。