公开(公告)号：US06283446B1

公开(公告)日：2001-09-04

申请号：US09520309

申请日：2000-03-07

申请人： Toshiyuki Sato ,  Tamotsu Yamashita ,  Hiroshi Fujisaki ,  Yasuhiko Ito ,  Koichi Nishigaki

发明人： Toshiyuki Sato ,  Tamotsu Yamashita ,  Hiroshi Fujisaki ,  Yasuhiko Ito ,  Koichi Nishigaki

IPC分类号： F16K2700

CPC分类号： F16K3/28 ,  F16L55/105

摘要： The present invention provides an improved gate valve system for cutting off a fluid flowing through a pipe. The gate valve system includes a gate valve and at least one member. The gate valve includes a seal member exhibiting an elastically deformable property for sealingly contacting the inner surface of the pipe, and a support member for receiving said seal member and movable in the perpendicular direction to the flowing direction of the fluid between the outside and inside of the pipe for timely bringing said seal member into a sealing contact with the inner surface of the pipe. The at least one expansion member is deformable, but is not substantially subjected to the volume variation even under pressure. The at least one expansion member is embedded in the seal member in such a manner as to expand the seal member laterally outwardly to the inner surface of the pipe upon receiving pressure effected by the sealing contact between the seal member and the inner surface of the pipe.

摘要翻译： 本发明提供了一种用于切断流过管道的流体的改进的闸阀系统。 闸阀系统包括闸阀和至少一个构件。 闸阀包括具有可弹性变形的密封构件，用于密封地接触管的内表面;以及支撑构件，用于接收所述密封构件，并且能够沿垂直于流体的流动方向的方向移动， 用于及时地将所述密封构件与管的内表面密封接触的管道。 至少一个膨胀构件是可变形的，但是即使在压力下也基本上不受体积变化的影响。 所述至少一个膨胀构件以这样的方式嵌入所述密封构件中，以便在所述密封构件和所述管的内表面之间的密封接触受到压力时，将所述密封构件横向向外扩张到所述管的内表面 。

公开(公告)号：US06530389B2

公开(公告)日：2003-03-11

申请号：US10171628

申请日：2002-06-17

申请人： Toshiyuki Sato ,  Hideshige Homma ,  Tamotsu Yamashita ,  Gumpei Yokoyama

发明人： Toshiyuki Sato ,  Hideshige Homma ,  Tamotsu Yamashita ,  Gumpei Yokoyama

IPC分类号： F16K4300

CPC分类号： F16L41/06 ,  F16L55/105 ,  Y10T137/0469 ,  Y10T137/6109 ,  Y10T137/6123

摘要： The invention relates to an existing pipe cut-off method and slitting method, by which an existing pipe made of cast iron and steel can be cut off. With a cut-off method according to the invention, first, a part of an existing pipe 1 is enclosed and sealed up by a seal-up housing 2 in an airtight state, a cutting tool 30 having a plurality of blades 30c is accommodated in the corresponding seal-up housing in a state the cutting tool is attached to the abovementioned seal-up housing 2. Next, the cutting tool 30 is fed toward the center of the abovementioned existing pipe 1 while slitting the existing pipe 1 by rotating the cutting tool 30 by power of a prime mover, and the abovementioned existing pipe 1 is cut off by the cutting tool 30 by turning the abovementioned seal-up housing 2 in the circumferential direction R of the existing pipe 1.

公开(公告)号：US06622747B2

公开(公告)日：2003-09-23

申请号：US09758283

申请日：2001-01-11

申请人： Toshiyuki Sato ,  Tamotsu Yamashita

发明人： Toshiyuki Sato ,  Tamotsu Yamashita

IPC分类号： F16L5500

CPC分类号： F16L41/04 ,  Y10T137/0447 ,  Y10T137/0458 ,  Y10T137/6123

摘要： A fluid supply interruption free cutting apparatus of the present invention comprises a seal-up housing and a drill. The drill has a milling cutting tool turned by a motor. The seal-up housing is of a structure suited to turn in the circumferential direction of an existing pipe. A first housing part of the seal-up housing is formed with a cutting tool insertion aperture through which the cutting tool is inserted and with a gate passage aperture through which a gate passes that is inserted for cutting off the flow of a fluid through the interior of the existing pipe after cutting of the existing pipe. The first housing part is provided with a first operation valve to open or close the gate passage aperture and with a second operation valve to open or close the cutting tool insertion aperture. An anticorrosive member is fitted in the opening formed in the cutting of the existing pipe. The anticorrosive member include a pressure contact portion made of elastomer coming into pressure contact with a cut surface of the opening over substantially the entire periphery and a rigid portion integrally formed with the pressure contact portion.—has been inserted therein.

摘要翻译： 本发明的流体供应中断自由切割装置包括密封壳体和钻头。 该钻具有一个由电机转动的铣刀。 密封壳体具有适于在现有管道的圆周方向上转动的结构。 密封壳体的第一壳体部分形成有切割工具插入孔，切割工具通过该孔插入，并具有栅极通道孔，通孔穿过该通道孔，插入孔用于切断通过内部的流体流动 现有管道切割后的现有管道。 第一壳体部分设置有用于打开或关闭闸门通道孔的第一操作阀以及用于打开或关闭切割工具插入孔的第二操作阀。 在现有管切割中形成的开口中安装有防腐蚀构件。 防锈构件包括由弹性体制成的压力接触部分，其在基本上在整个周边上与开口的切割表面压力接触，以及与压力接触部分一体形成的刚性部分。

公开(公告)号：US06357471B1

公开(公告)日：2002-03-19

申请号：US09460971

申请日：1999-12-15

申请人： Toshiyuki Sato ,  Tamotsu Yamashita

发明人： Toshiyuki Sato ,  Tamotsu Yamashita

IPC分类号： F16K4300

CPC分类号： F16L55/105 ,  Y10S408/713 ,  Y10T137/0469 ,  Y10T137/6123 ,  Y10T408/89 ,  Y10T408/905 ,  Y10T408/906

摘要： A valve insertion method without stopping passage of fluid, wherein, first, a part of an already-installed pipe is enclosed air-tightly with a valve casing, a milling type cutting tool which has cutting edges on a free end surface and an outer circumferential surface thereof, and a gate being housed in the valve casing with the gate and the cutting tool fixed thereto. The gate and cutting tool are provided in positions spaced from each other in the axial direction of the already-installed pipe. A worker then feeds the cutting tool in the radial direction of the already-installed pipe as he has the cutting tool make cutting motions for cutting the pipe by the rotation of the cutting tool. The valve casing is then turned in the circumferential direction of the already-installed pipe as the cutting motions are kept made, whereby a cut groove cut in the direction of the range of the whole circumference of the pipe is formed. After the grooving operation is finished, the worker takes out the cutting tool from the valve casing, and then closes an operation valve. After the grooving operation is finished, the worker transfers the valve casing in the axial direction of the already-installed pipe, whereby the gate is transferred to a position which corresponds to that of the cut groove.

摘要翻译： 一种不阻止流体通过的阀插入方法，其中首先，已经安装的管的一部分与阀壳气密地密封，铣削型切削工具在自由端面上具有切削刃，外周 表面，并且门被容纳在阀壳中，门和切割工具固定在其上。 门和切割工具设置在已经安装的管的轴向上彼此间隔开的位置。 然后，工人随着切割工具通过切割工具的旋转切割动作进行切割动作，沿着已经安装的管的径向方向进给切割工具。 随着切割动作的制作，阀壳随着已经安装的管的圆周方向转动，从而形成沿管的整个圆周方向切割的切槽。 切槽操作完成后，工人从阀门外壳中取出切割工具，然后关闭操作阀。 在切槽操作完成之后，工人沿着已经安装的管的轴向方向传送阀壳体，从而将闸门转移到与切槽相对应的位置。

公开(公告)号：US06615859B2

公开(公告)日：2003-09-09

申请号：US09874531

申请日：2001-06-05

申请人： Toshiyuki Sato ,  Tamotsu Yamashita

发明人： Toshiyuki Sato ,  Tamotsu Yamashita

IPC分类号： F16K4300

CPC分类号： F16L41/06 ,  Y10T137/0469 ,  Y10T137/6123 ,  Y10T408/03 ,  Y10T409/303808 ,  Y10T409/306664

摘要： An existing straight pipe 1 is cut off at two locations by rotating two seal-up housings 2 each mounted with a cutter 3, to form two cutoff groove 12C. A straight pipe portion 1p between the two cutoff grooves 12C remains left without retrieval, to impart a flexibility and contraction and expansion properties to a pipeline.

公开(公告)号：US06470907B1

公开(公告)日：2002-10-29

申请号：US09195601

申请日：1998-11-19

申请人： Toshiyuki Sato ,  Hideshige Homma ,  Tamotsu Yamashita ,  Gumpei Yokoyama

发明人： Toshiyuki Sato ,  Hideshige Homma ,  Tamotsu Yamashita ,  Gumpei Yokoyama

IPC分类号： F16K4300

CPC分类号： F16L41/06 ,  F16L55/105 ,  Y10T137/0469 ,  Y10T137/6109 ,  Y10T137/6123

摘要： The invention relates to an existing pipe cut-off method and slitting method, by which an existing pipe made of cast iron and steel can be cut off. With a cut-off method according to the invention, first, a part of an existing pipe 1 is enclosed and sealed up by a seal-up housing 2 in an airtight state, a cutting tool 30 having a plurality of blades 30c is accommodated in the corresponding seal-up housing in a state the cutting tool is attached to the abovementioned seal-up housing 2. Next, the cutting tool 30 is fed toward the center of the abovementioned existing pipe 1 while slitting the existing pipe 1 by rotating the cutting tool 30 by power of a prime mover, and the abovementioned existing pipe 1 is cut off by the cutting tool 30 by turning the abovementioned seal-up housing 2 in the circumferential direction R of the existing pipe 1.

摘要翻译： 本发明涉及现有的管道切断方法和切割方法，通过该方法可以切割现有的铸铁和钢管， 根据本发明的切断方法，首先，现有的管1的一部分被密封状态的密封壳体2封闭并密封，具有多个叶片30c的切削工具30容纳在 相应的密封壳体处于切割工具附接到上述密封壳体2的状态。接下来，切割工具30朝着上述现有管1的中心被供给，同时通过旋转切割 工具30通过原动机的动力，并且通过在现有管1的圆周方向R上转动上述密封壳体2，切割工具30切断上述现有管1。

公开(公告)号：US06308726B2

公开(公告)日：2001-10-30

申请号：US09821156

申请日：2001-03-30

申请人： Toshiyuki Sato ,  Tamotsu Yamashita

发明人： Toshiyuki Sato ,  Tamotsu Yamashita

IPC分类号： F16K4300

CPC分类号： F16L55/105 ,  Y10S408/713 ,  Y10T137/0469 ,  Y10T137/6123 ,  Y10T408/89 ,  Y10T408/905 ,  Y10T408/906

摘要： A valve insertion method without stopping passage of fluid, wherein, first, a part of an already-installed pipe is enclosed air-tightly with a valve casing, a milling type cutting tool which has cutting edges on a free end surface and an outer circumferential surface thereof, and a gate being housed in the valve casing with the gate and the cutting tool fixed thereto. The gate and cutting tool are provided in positions spaced from each other in the axial direction of the already-installed pipe. A worker then feeds the cutting tool in the radial direction of the already-installed pipe as he has the cutting tool make cutting motions for cutting the pipe by the rotation of the cutting tool. The valve casing is then turned in the circumferential direction of the already-installed pipe as the cutting motions are kept made, whereby a cut groove cut in the direction of the range of the whole circumference of the pipe is formed. After the grooving operation is finished, the worker takes out the cutting tool from the valve casing, and then closes an operation valve. After the grooving operation is finished, the worker transfers the valve casing in the axial direction of the already-installed pipe, whereby the gate is transferred to a position which corresponds to that of the cut groove.

摘要翻译： 一种不阻止流体通过的阀插入方法，其中首先，已经安装的管的一部分与阀壳气密地密封，铣削型切削工具在自由端面上具有切削刃，外周 表面，并且门被容纳在阀壳体中，门和切割工具固定在其上。 门和切割工具设置在已经安装的管的轴向上彼此间隔开的位置。 然后，工人随着切割工具通过切割工具的旋转切割动作进行切割动作，沿着已经安装的管的径向方向进给切割工具。 随着切割动作的制作，阀壳随着已经安装的管的圆周方向转动，从而形成沿管的整个圆周方向切割的切槽。 切槽操作完成后，工人从阀门外壳中取出切割工具，然后关闭操作阀。 在切槽操作完成之后，工人沿着已经安装的管的轴向方向传送阀壳体，从而将闸门转移到与切槽相对应的位置。

公开(公告)号：US08156959B2

公开(公告)日：2012-04-17

申请号：US12212055

申请日：2008-09-17

申请人： Tamotsu Yamashita ,  Taihei Yokoyama

发明人： Tamotsu Yamashita ,  Taihei Yokoyama

IPC分类号： F16L41/04

CPC分类号： F16L41/06 ,  F16L41/16 ,  Y10T137/6123 ,  Y10T137/6126

摘要： A branching unit for boring without stopping passage of fluid, which is suitable for forming an opening 11 at a pipe wall 12 by boring a part of the pipe wall 12 of an existing pipe 1 using a drill machine 3 having a hole saw 4 to connect a branch pipe to the existing pipe, comprising: a sealing case 20 having plurality of separate casing 21, 22 separated in a circumferential direction R and a branch pipe portion 27 protruding and branching off in the radial direction C; a valve body 5 rotating between an inner circumferential surface 29 of the separate casing 21, 22 and an outer circumferential surface 13 of the existing pipe 1 to open and close a branch hole 28; and a rotation mechanism 50 rotating the valve body 5.

摘要翻译： 一种用于钻孔而不阻止流体通过的分支单元，其适于通过使用具有孔锯4的钻孔机3钻孔现有管道1的管壁12的一部分而在管壁12处形成开口11以连接 一个分支管道连接到现有的管道上，包括：密封箱20，其具有沿圆周方向R分离的多个独立的壳体21,22;以及沿径向C突出并分支的支管部分27; 在分离壳体21,22的内周面29与现有管1的外周面13之间旋转的阀体5，开闭分支孔28; 以及使阀体5旋转的旋转机构50。

公开(公告)号：USD398504S

公开(公告)日：1998-09-22

申请号：US070203

申请日：1997-05-07

申请人： Tamotsu Yamashita

设计人： Tamotsu Yamashita

公开(公告)号：US5431453A

公开(公告)日：1995-07-11

申请号：US219289

申请日：1994-03-28

申请人： Tamotsu Yamashita ,  Hideshige Homma

发明人： Tamotsu Yamashita ,  Hideshige Homma

IPC分类号： F16L21/08

CPC分类号： F16L21/08

摘要： A pipe coupling arrangement for coupling an end of a pipe section includes a coupling body having its open end, into which the end of the pipe section is inserted. An outer ring and a radially compressed inner ring are disposed in the open end of the coupling body. Inclined peripheries are respectively defined in the inner periphery of the outer ring and the outer periphery of the inner ring. These inclined peripheries are inclined so as to become smaller in diameter as they advances towards the open end of the coupling body. The inclined periphery of the outer ring and that of the inner ring are engaged by each other. A pressing means for pressing an outer periphery of the outer ring is provided such that the inner ring is tightly pressed against an outer periphery of the pipe section via the outer ring. A space is defined by the inclined surface of the outer ring and the outer periphery of the pipe section, into which the inner ring is inserted.

摘要翻译： 用于连接管段末端的管连接装置包括一个其开口端的连接体，管段末端插入该连接体。 外圈和径向压缩的内圈设置在联接体的开口端。 倾斜的周边分别限定在外圈的内周和内圈的外周。 这些倾斜的周边倾斜，以便随着朝着联接体的开口端前进而变小。 外环的倾斜周边和内环的倾斜周边彼此接合。 设置用于按压外圈的外周的按压装置，使得内圈经由外圈紧紧地压靠在管部的外周。 由外圈的倾斜面和内圈插入的管部的外周形成空间。