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    Concrete slab rebar hole doweling cart
    1.
    发明授权
    Concrete slab rebar hole doweling cart 有权

    公开(公告)号：US12116892B2

    公开(公告)日：2024-10-15

    申请号：US17976621

    申请日：2022-10-28

    申请人： Joshua E. Sommers

    发明人： Joshua E. Sommers

    IPC分类号： E21B7/02 ,  B62B1/12 ,  E04G21/12

    CPC分类号： E21B7/028 ,  B62B1/12 ,  B62B2202/48 ,  E04G21/12 ,  Y10T408/655 ,  Y10T408/675 ,  Y10T408/91

    摘要： A rebar hole doweling cart to construct or repair sidewalks, driveways, roadways, curbs, floors and the like. The cart has a frame with wheels, an elongated upwardly extending riser with a handle, and a nose plate that pivotally supports a drill mounting assembly near the ground. The mounting assembly holds an electric hammer drill and its bit in an aimed direction. The cart is rolled forward to tap a hole in a concrete slab and place the bit in a set aimed direction. The cart handle is then pushed forward to rotate the nose plate down into gripping engagement with the ground to advance the drill bit forward to form the rebar hole in the slab. During this forward handle rotation, the drill mounting assembly simultaneously counter-rotates (pitch pivotal movement) relative to the nose plate to maintain the drill bit in its set aimed direction.

    Method and apparatus for cutting of flexible foam material
    2.
    发明授权
    Method and apparatus for cutting of flexible foam material 失效
    用于切割柔性泡沫材料的方法和设备

    公开(公告)号：US4621956A

    公开(公告)日：1986-11-11

    申请号：US656181

    申请日：1984-10-01

    申请人： Steven D. Hartman ,  H. David Hartman

    发明人： Steven D. Hartman ,  H. David Hartman

    IPC分类号： B26D1/44 ,  B26F1/16 ,  B29C44/56 ,  B23B41/00

    CPC分类号： B29C44/5654 ,  B26D1/44 ,  B26F1/16 ,  Y10T408/03 ,  Y10T408/29 ,  Y10T408/34 ,  Y10T408/385 ,  Y10T408/655 ,  Y10T408/895

    摘要： An apparatus and process for the continuous cutting of a generally cylindrical rod from soft flexible polymeric foam slabs is disclosed. The apparatus includes a drive for moving a length of the foam slab along a predetermined path, a guide for restricting the movement of such foam slab to movement along said predetermined path, at least one rotary cutter having an open bore with the axis thereof generally along said predetermined path and in a position to continuously cut a rod from the thickness of such foam slab as it is moved past said cutter, a drive for rotating said at least one rotary cutter at a speed sufficient to cut such foam slab effectively as such foam is moved along said path, and an arrangement for positively withdrawing a cut rod from the cutter bore, the guide engages the foam slab adjacent the cutters and forces the slab to move past the cutters and in so doing the cutter slits the slab to allow such cut rod to continue along such path and allow the foam slab other than such rod to diverge from the path away from the at least one cutter. The apparatus and process allow convenient cutting of joint backer rods from soft flexible polymeric foam slabs (open celled).

    摘要翻译： 公开了一种用于从柔性柔性聚合物泡沫板连续切割大致圆柱形杆的装置和方法。 该设备包括用于沿着预定路径移动一段长度的泡沫板的驱动装置，用于限制这种泡沫板坯沿着所述预定路径运动的导向件，至少一个旋转切割器具有一开口孔，其轴线大致沿着 所述预定路径并且处于从所述泡沫板坯移动通过所述切割器的厚度连续切割杆的位置，用于以足以以有效方式切割所述泡沫板的速度旋转所述至少一个旋转切割器的驱动器， 沿着所述路径移动，以及用于从切割器孔中积极地抽出切割杆的布置，引导件接合与切割器相邻的泡沫板，并迫使板移动通过切割器，并且在这样做切割器切割板以允许这样的 切割杆沿着这样的路径继续，并允许除了这种杆之外的泡沫板从远离至少一个切割器的路径发散。 该设备和工艺允许从柔软的柔性聚合物泡沫板（开孔）方便切割接头支撑杆。

    Deep-bore drilling machine
    8.
    发明授权
    Deep-bore drilling machine 失效
    深钻孔机

    公开(公告)号：US4726717A

    公开(公告)日：1988-02-23

    申请号：US947670

    申请日：1986-12-30

    申请人： Wolfgang Schmid

    发明人： Wolfgang Schmid

    IPC分类号： B23B41/02

    CPC分类号： B23B41/02 ,  Y10S408/705 ,  Y10T408/62 ,  Y10T408/655 ,  Y10T408/6757

    摘要： A deep-bore drilling machine consists of a deep-bore drilling unit (1) which is driven by rotation and has a deep drill tool (4, 7). The front end (7) of the deep-bore drilling tool (4) is led into the drill bushing (10) at the beginning of the drilling operation. The drill bushing (10) is thereby contained in a main spindle (22) and is replaceable. Also, the main spindle (22) can also be driven independent of drive (2) of the deep-bore drilling unit (1) by another drive (30).

    摘要翻译： 深孔钻机由深孔钻孔单元（1）组成，其由旋转驱动并具有深钻孔工具（4,7）。 深钻孔工具（4）的前端（7）在钻孔操作开始时被引入钻套（10）。 钻套（10）由此容纳在主轴（22）中并且是可更换的。 此外，主轴（22）也可以通过另一驱动器（30）独立于深孔钻井单元（1）的驱动（2）驱动。