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1. 发明授权

US06745795B2 Method and device for plugging a gas main 失效
标题翻译：堵塞气体主体的方法和装置
公开(公告)号：US06745795B2
公开(公告)日：2004-06-08
申请号：US10300626
申请日：2002-11-21
申请人： John W. McGivery
发明人： John W. McGivery
IPC分类号： F16L5512
CPC分类号： F16L55/1604 , F16L55/132 , Y10T137/0441 , Y10T137/0475 , Y10T137/6123
摘要： A method of sealing a pipe and a device for sealing the pipe which prevents gas leakage out of a pipe stub plugged by a stopper disposed in a tee fitting, to allow a permanent cap to be welded onto the pipe. The device comprises an expandable plug comprising a pair of plates with a sealing member disposed between the plates. The plates can be squeezed together, for example by tightening nuts onto bolts extending through the plates to compress the sealing member and cause the periphery of the sealing member to expand against the inner wall of the pipe. Stabilizing means, for example a nut having a reverse thread and a complimentary tool, is provided for stabilizing the expandable plug radially within the pipe as the plates are squeezed together. The expandable plug is inserted into the pipe stub after the bypassed section of pipe has been removed, and lodged in the pipe by squeezing the plates together to expand the sealing member against the inner wall of the pipe stub. The cap is then welded onto the pipe stub.
摘要翻译：一种密封管道的方法和用于密封管道的装置，其防止气体从由设置在三通配件中的塞子堵塞的管桩中泄漏，以允许将永久盖焊接到管道上。该装置包括可膨胀塞，其包括一对板，其中密封构件设置在板之间。板可以一起挤压，例如通过将螺母拧紧到延伸穿过板的螺栓上以压缩密封构件并使密封构件的周边抵靠管的内壁膨胀。提供了稳定装置，例如具有反向螺纹和互补工具的螺母，用于当板挤压在一起时使可扩张塞径向放置在管内。在管道的旁路部分被去除之后，将可膨胀塞子插入到管坯中，并通过将板压在一起而将密封构件膨胀在管桩的内壁上。然后将盖子焊接到管道桩上。

2. 发明授权

US08096367B2 Excavation system and method 有权
标题翻译：挖掘系统和方法
公开(公告)号：US08096367B2
公开(公告)日：2012-01-17
申请号：US11524902
申请日：2006-09-22
申请人： John W. McGivery
发明人： John W. McGivery
IPC分类号： A01B33/06
CPC分类号： E01C23/094
摘要： A system and method of cutting for replacement a replaceable coupon out of a paved surface for keyhole excavation provides a truck with a turret to which a support arm supporting a cutter assembly is mounted, and a stabilizing member remote from the turret, which allows the turret to be rotated while stabilizing the support arm at any desired position about the truck.
摘要翻译：一种用于替换可更换优惠券的系统和方法，用于从铺设的表面更换钥匙孔挖掘，为卡车提供了一个支架，支撑刀具组件的支撑臂所安装的转台以及远离转塔的稳定件，在将支撑臂稳定在围绕卡车的任何期望位置的同时被旋转。

3. 发明授权

US07128165B2 Excavation system and method 有权
标题翻译：挖掘系统和方法
公开(公告)号：US07128165B2
公开(公告)日：2006-10-31
申请号：US10430303
申请日：2003-05-07
申请人： John W. McGivery
发明人： John W. McGivery
IPC分类号： A01B13/00
CPC分类号： E01C23/094
摘要： A system and method of cutting a core out of a finished surface for keyhole excavation provides a truck with a turret to which a support arm supporting the cutter assembly is mounted, and a stabilizing member remote from the turret, which allows the turret to be rotated about its complete arc of motion while stabilizing the support arm at any desired position about the truck. In a first embodiment the invention comprises an upstanding support rim affixed to or integrated into the bed of the truck. In a further embodiment the invention comprises a support member affixed to the horizontal arm and supported by the truck bed. This makes the keyhole excavation procedure safer and more precise, and allows a larger-depth cutting head to be used in order to penetrate thicker finished surfaces. In the preferred embodiment the cutter head is provided with a pilot which creates a pilot hole in the core that facilitates removal, manipulation and replacement of the core, and improves the integrity of the reinstated core.
摘要翻译：将核心从成品表面切割成锁眼挖掘的系统和方法为卡车提供了一个支架，支撑刀具组件的支撑臂安装在该转台上，以及一个远离转台的稳定元件，其允许转盘旋转关于其完整的运动弧，同时将支撑臂稳定在围绕卡车的任何期望位置。在第一实施例中，本发明包括固定到或整合到卡车床中的直立支撑边缘。在另一实施例中，本发明包括固定在水平臂上并由卡车底座支撑的支撑构件。这样使得孔眼挖掘程序更安全，更精确，并且允许使用较大深度的切割头以便穿透较厚的成品表面。在优选实施例中，切割头设置有引导件，其在芯中产生导向孔，其有助于芯的移除，操作和更换，并且提高恢复的芯的完整性。

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