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    • 44. 发明授权
    • Steel pump jack with safety latch and method
    • 钢泵千斤顶带安全闩锁和方法
    • US08286753B2
    • 2012-10-16
    • US12655999
    • 2010-01-12
    • Brett A. LatimerRobert D. Beggs
    • Brett A. LatimerRobert D. Beggs
    • E04G1/18
    • B66F19/00B66F1/02Y10T29/53Y10T292/03
    • An upper shackle assembly for a steel pump jack for a wood pole includes a u-shaped shackle component to receive the wood pole. The assembly includes a crank handle that extends through the shackle component and engages the pole to lower the pump jack down the pole. The assembly includes a brake attached to the shackle component to engage with the pole if the crank handle fails. A method for installing a steel pump jack to a wood pole includes the steps of placing a u-shaped shackle component about the wood pole. There is the step of closing a brake with the shackle component to engage with the pole if a crank handle fails. There is the step of extending the crank handle through the shackle component to engage the pole. A steel pump jack.
    • 用于木杆的钢泵千斤顶的上部卸扣组件包括用于接收木杆的u形钩环部件。 该组件包括一个曲柄手柄,该手柄延伸穿过该钩环部件并接合该极点,以将该泵压头向下降低。 组件包括附接到钩环部件的制动器,如果曲柄手柄失效则与制动杆接合。 将钢泵千斤顶安装在木杆上的方法包括将u形钩环部件放置在木杆周围的步骤。 如果一个曲柄手柄出现故障,那么这个步骤就是用钩环部件闭合制动器,以便与杆接合。 具有通过钩环部件延伸曲柄手柄以接合杆的步骤。 钢泵千斤顶。
    • 49. 发明授权
    • Pump jack and method
    • 泵千斤顶和方法
    • US07661512B2
    • 2010-02-16
    • US11122419
    • 2005-05-05
    • Richard E. Feldmiller, Jr.Robert D. Beggs
    • Richard E. Feldmiller, Jr.Robert D. Beggs
    • A63B27/00
    • E04G3/28B66F1/00E04G1/20E04G1/38
    • A pump jack for a scaffold in a system to support a work platform and move the platform up and down a pole to access a vertical work surface. The pump jack includes an L-shaped framework having a horizontal frame member which supports the work platform and a vertical frame member. The vertical frame member having laterally opposing Z-shaped channels, each having a leg that bends about the pole and extends inward toward the pole. The pump jack includes an upper shackle supported by the framework. The pump jack includes a lower shackle supported by the framework, which with the upper shackle applies a coupling force for gripping the pole. The pump jack includes a pump arm lever pivotably coupled to the vertical frame member to step upwardly the pump jack relative to the pole. The pump jack includes a crank mechanism coupled to the vertical frame member. A method for supporting and moving a work platform up and down a pole to access a vertical work surface.
    • 用于支撑工作平台的系统中的支架的泵千斤顶,并将平台上下移动到杆上以进入垂直工作表面。 泵千斤顶包括具有支撑工作平台和垂直框架构件的水平框架构件的L形框架。 垂直框架构件具有横向相对的Z形通道,每个通道具有围绕极弯曲并向着朝向极向内延伸的腿。 泵千斤顶包括由框架支撑的上部卸扣。 泵千斤顶包括由框架支撑的下卸扣,其与上钩环一起施加用于夹紧杆的联接力。 泵千斤顶包括可枢转地联接到垂直框架构件的泵臂杆,以相对于杆向上升高泵插头。 泵千斤顶包括联接到垂直框架构件的曲柄机构。 一种用于支撑和移动工作平台上下杆以访问垂直工作表面的方法。
    • 50. 发明授权
    • Extension ladder, combination end cap/guide bracket, and method for
climbing
    • 伸展梯,组合端盖/导轨支架,以及攀爬方法
    • US5758745A
    • 1998-06-02
    • US685191
    • 1996-07-18
    • Robert D. BeggsMitchell H. HetrichChristine A. LeipheimerMarc A. Mabie
    • Robert D. BeggsMitchell H. HetrichChristine A. LeipheimerMarc A. Mabie
    • E06C1/12E06C7/06
    • E06C1/12
    • An extension ladder comprises a base section comprising a first base rail, a second base rail in spaced relationship and in parallel with the first base rail, and at least a first base rung connected to the first base rail and the second base rail. The extension ladder also comprises a fly section slidably connected to the base section. The fly section comprises a first fly rail, a second fly rail in spaced relationship and in parallel with the first fly rail, at least a first fly rung connected to the first fly rail and the second fly rail, a first combination end cap/guide bracket connected to the bottom of the first fly rail, and a second combination end cap/guide bracket connected to the bottom of the second fly rail. Each end cap/guide bracket is one continuous piece. The first fly rail is adjacent to and in parallel with and in spaced relationship with said first base rail. The second fly rail is adjacent to and in parallel with and in spaced relationship with said second base rail. The first and second combination end cap/guide bracket prevents the fly section separating from the base section and capping the bottom end of the first fly rail and second fly rail, respectively. A combination end cap/guide bracket comprises a back wall. Additionally, the end cap/guide bracket comprises an end closure portion preferably with a slot connected to the back wall. The end cap/guide bracket also comprises a hook portion having a hook connected to the back wall and extending perpendicularly from the end closure portion. Additionally, the end cap/guide bracket comprises a block portion which is disposed adjacent and in parallel with the hook of the hook portion and preferably defines a first channel with the hook.
    • 延伸梯包括基部,所述基部包括第一基座轨道,间隔开的第二基座轨道和与第一基座轨道平行的第二基座轨道,以及至少连接到第一基座轨道和第二基座轨道的第一基座梯架。 延伸梯还包括可滑动地连接到基部的飞行部分。 飞行部分包括第一飞行轨道,间隔开的第二飞行轨道,并与第一飞行轨道平行,至少连接到第一飞行轨道和第二飞行轨道的第一飞行梯架,第一组合端盖/导轨 连接到第一飞轨的底部的支架,以及连接到第二飞轨的底部的第二组合端盖/导向架。 每个端盖/导向支架是一个连续的部件。 第一飞轨与所述第一基座相邻并与之平行并与之隔开。 第二飞轨与所述第二基轨相邻并与之平行并与其间隔开。 第一和第二组合端盖/引导支架防止飞行部分与基座部分分离并分别封盖第一飞行轨道和第二飞行轨道的底端。 组合式端盖/导向支架包括后壁。 此外,端盖/引导支架包括端部封闭部分,优选地具有连接到后壁的狭槽。 端盖/引导支架还包括钩部分,钩部分具有连接到后壁并从端部封闭部分垂直延伸的钩。 此外,端盖/引导支架包括块部分,其与钩部分的钩相邻并且平行,并且优选地限定具有钩的第一通道。