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    • 22. 发明授权
      US4603516A Self propelled pipe blast cleaner capable of travel along a pipeline supported over the ditch 失效
    • Self propelled pipe blast cleaner capable of travel along a pipeline supported over the ditch
    • 能够沿着支撑在沟渠上的管道行进的自推进式管式除尘器
    • US4603516A
    • 1986-08-05
    • US595661
    • 1984-04-02
    • Joseph H. Hoffman
    • Joseph H. Hoffman
    • B08B9/02 , B24C3/06
    • B08B9/023 , B24C3/06
    • A self propelled airless grit blast machine that travels on and along a pipeline pipe as it continuously blast cleans the outside of the pipe in advance of pipe coating and/or wrapping. The airless grit blast machine is mounted on a carriage having rollers some of which are driven for controlled driven advance along the pipe being shot grit blast cleaned. A shot grit blast cabinet with a plurality of motor driven airless blast wheels surrounds the pipe being grit blast cleaned in substantially a self contained unit also including a grit elevator system, air wash separator system, shot grit storage hopper, abrasive shot grit retaining seals, abrasive flow controls, and an operator platform with a control panel. An umbilical cord extends to the machine from auxillary equipment including a power generator and dust collector located on a tracked vehicle or on an equipment sled pulled behind a side boom equipped tractor used to walk pipe and hold the pipe in an elevated state as the pipe is being worked along the pipeline right of way.
    • 自动推进的无气喷砂机在管道涂层和/或包装之前沿着管道管道沿着管道管道行进，连续喷射清洁管道的外部。 无气喷砂机安装在具有辊子的滑架上，其中一些滚筒被驱动以沿着管子进行控制驱动，喷射喷砂清理。 具有多个电机驱动的无空气喷砂轮的喷丸式喷砂箱围绕着在基本上包含一个自包含单元的基础上进行喷砂清理的管道，该装置还包括砂浆升降机系统，空气洗涤分离器系统，喷砂砂粒存储料斗，磨料喷砂砂粒保持密封件， 磨料流量控制器和带控制面板的操作员平台。 脐带从辅助设备延伸到机器，辅助设备包括位于跟踪车辆上的发电机和集尘器，或在用于行走管道的侧臂装备的拖拉机后面的设备滑雪板上，并且当管道处于升高状态时将管道保持在升高状态 沿着管道正在进行工作。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 26. 发明授权
      US5353729A Apparatus and method for performing external surface work on ship hulls 失效
    • Apparatus and method for performing external surface work on ship hulls
    • 在船体上进行外表面工作的装置和方法
    • US5353729A
    • 1994-10-11
    • US99434
    • 1993-07-30
    • Richard A. Goldbach , William A. Wagner , Frank E. McConnell , Joseph H. Hoffman
    • Richard A. Goldbach , William A. Wagner , Frank E. McConnell , Joseph H. Hoffman
    • B63C5/02 , B63B59/06 , B63B59/00
    • B63B59/06
    • Dry, particulate abrasive for use in abrasive blast cleaning of a ship hull is supplied to blasting pots from abrasive supply hopper assemblies lifted into place from a recycling station. Spent abrasive, with debris, is collected and placed on a conveyor belt extending parallel to the keel blocks, for conveying the collected material to the recycling station. There, the collected material is processed to remove undersized and foreign material from the reuseable abrasive grit. The latter is loaded into supply hopper assemblies, which are crane-lifted back into supplying relation with respective blasting pots. By preference, the abrasive blasting work takes place from elevatable, curtain-enclosed platforms supported on a drydock floor, the blasting pots are located on the drydock wing wall, the abrasive grit is ferromagnetic and recovered from the drydock floor partly with the aid of a magnetic abrasive pick-up unit, and the recycling station is located on a barge moored at an end of the drydock.
    • 用于船体磨料喷砂清理的干燥颗粒磨料从提炼到回收站的磨料供料斗组件提供给喷砂锅。 废弃的具有碎屑的磨料被收集并放置在平行于龙骨块延伸的传送带上，用于将收集的材料输送到回收站。 在那里，处理收集的材料以从可再利用的磨料砂粒中除去不合格和异物。 后者被装载到供料斗组件中，供料斗组件被起重机提升回到与各个喷射锅供应关系。 优选的是，喷砂工作是从支撑在干坞地板上的可升高的窗帘式平台进行的，喷砂锅位于干坞翼壁上，研磨砂砾是铁磁性的，部分借助于 磁性研磨拾取单元，并且回收站位于在干船坞末端停泊的驳船上。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 28. 发明授权
      US4173429A Centrifugal fan, shaft, plate and hub assembly 失效
    • Centrifugal fan, shaft, plate and hub assembly
    • 离心风机，轴，板和轮毂组件
    • US4173429A
    • 1979-11-06
    • US857483
    • 1977-12-05
    • Joseph H. Hoffman , Daniel G. Thompson
    • Joseph H. Hoffman , Daniel G. Thompson
    • F01D5/02 , F04D29/28 , F04D29/58 , F16D1/076 , F04D17/08
    • F01D5/025 , F04D29/281 , F16D1/076
    • A hub assembly for a centrifugal fan subjected to large transient thermal stresses is provided in which a pair of opposed hubs sandwich the inner peripheral margin of a disc-shaped fan plate, with the inner peripheral margin of the plate including a thickened ring portion to provide oppositely projecting annular shoulders at the outer periphery of the thickened ring portion, with the opposing hubs having annular recesses to receive the thickened ring portion and with the outer peripheries of the recesses in closely abutting relation with the shoulders to provide a shoulder-recess bearing area and with a plurality of fastener means extending through the hubs and through the thickened ring portion so that the shoulder-recess bearing area, which is located radially outwardly from the bearing stress areas at the bolt holes, largely receives the transient thermal stresses and therefore reduces the stress in the bolts and plate.
    • 提供一种用于经受大的瞬时热应力的离心式风扇的轮毂组件，其中一对相对的轮毂夹住盘形风扇板的内周边缘，板的内周边缘包括增厚的环部分，以提供 相对的轮毂具有环形凹部以接纳增厚的环部分，并且凹部的外周与肩部紧密地邻接，以提供肩部凹陷承载区域 并且具有多个紧固件装置，其延伸穿过轮毂并且穿过加厚的环部分，使得从螺栓孔处的轴承应力区域径向向外定位的肩部 - 凹槽支承区域很大程度上接收瞬态热应力，因此减小 螺栓和板中的应力。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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