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公开(公告)号：US5125625A
公开(公告)日：1992-06-30
申请号：US715953
申请日：1991-06-17
IPC分类号： F16K24/00
CPC分类号： F16K24/00
摘要： This invention pertains to a method and apparatus for venting pressure from within a pressurized housing. It incorporates a sealing assembly that is secured within a housing and restrained against a pressurized channel by a nut. By loosening the nut, restraint on the sealing assembly is released thereby allowing fluid from the channel to travel the length of the sealing assembly and exit the housing. Conversely, by tightening the nut, restraint on the sealing assembly is reapplied which blocks the channel once again thereby preventing any more fluid from flowing.
摘要翻译： 本发明涉及一种用于从加压壳体内排出压力的方法和装置。 它包括一个密封组件，该密封组件固定在壳体内并通过螺母限制在加压通道上。 通过松开螺母，释放密封组件上的限制，从而允许来自通道的流体行进密封组件的长度并离开壳体。 相反，通过拧紧螺母，重新施加密封组件上的限制，从而再次阻塞通道，从而防止任何更多的流体流动。
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公开(公告)号：US4773115A
公开(公告)日：1988-09-27
申请号：US916365
申请日：1986-10-07
申请人： Robert C. Smith
发明人： Robert C. Smith
CPC分类号： E03F9/00 , B08B9/047 , B08B9/051 , Y10T409/503116
摘要： Apparatus for removing obstructions from pipelines, such as sewers, comprises support means, motor means carried by the support means, cutter means adapted to be operated by the motor means, and means for locking the support means in a pipe, adjacent an obstruction whereby the apparatus may be locked in a predetermined position, and the motor means operated to drive the cutter means and remove the obstruction. The motor means may comprise an hydraulic motor. The cutter means may be a rotary saw. The means for locking the support means in position may comprise at least one hydraulic jack.
摘要翻译： 用于从诸如下水道的管道移除障碍物的装置包括支撑装置，由支撑装置承载的马达装置，适于由马达装置操作的切割装置，以及用于将支撑装置锁定在管道中的装置， 装置可以锁定在预定位置，并且马达装置被操作以驱动切割装置并移除阻塞物。 马达装置可以包括液压马达。 切割装置可以是旋转锯。 用于将支撑装置锁定就位的装置可以包括至少一个液压千斤顶。
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73.发明授权
公开(公告)号：US4733113A
公开(公告)日：1988-03-22
申请号：US11487
申请日：1987-02-05
申请人： Robert C. Smith
发明人： Robert C. Smith
CPC分类号： H02K37/18
摘要： A three-phase stepping motor having first, second, and third sets of stator poles, with the first and second sets of stator poles having single coils thereon and the third set having dual or bifilar coils thereon. The coils on the first set of stator poles and one of the coils on each pole of the third set of stator poles are connected to one phase of a two-phase drive. The coils on the second set of stator poles and the other of the coils on each pole of the third set of stator poles are connected to the other phase of a two-phase drive. The currents of the two drive phases are thus magnetically combined in the third set of stator poles to produce energization of the "third phase". In one embodiment, a twelve-pole, rotary, three-phase stepping motor with a 50-tooth rotor and a 48- , 50-, or 52-tooth-pitch stator produces a step angle of 1.8.degree. mechanical with a two-phase drive.
摘要翻译： 具有第一，第二和第三组定子极的三相步进电机，其中第一组和第二组定子极在其上具有单个线圈，并且第三组在其上具有双或双线圈。 第一组定子极上的线圈和第三组定子极的每个极上的线圈中的一个线圈连接到两相驱动器的一相。 第二组定子极上的线圈和第三组定子极的每个极上的另一个线圈连接到两相驱动的另一相。 因此，两个驱动相的电流被磁耦合在第三组定子极中，以产生“第三相”的通电。 在一个实施例中，具有50-齿转子和48-，50-或52-齿 - 间距定子的十二极旋转三相步进电机产生机械力为1.8度的阶梯角，其中两相 驾驶。
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公开(公告)号：US4530402A
公开(公告)日：1985-07-23
申请号：US527902
申请日：1983-08-30
摘要： A method of completing a wellbore is disclosed wherein a low density spacer fluid is introduced into a wellbore and then a completion fluid, such as a cement slurry, to displace the spacer fluid. The spacer fluid comprises a nonagglomerating carrier fluid, such as water or the like, and discrete dispersible density reducing bodies, such as hollow spheres. The density reducing bodies aid in reducing the hydrostatic head of the spacer fluid, completion fluid, and existing wellbore fluids to prevent the hydrostatic head of such fluids from exceeding the fracture gradient of a highly porous, easily fractured formation.
摘要翻译： 公开了一种完成井孔的方法，其中将低密度间隔液引入井眼中，然后将完井流体（例如水泥浆）引入以移动间隔液。 间隔液包括非凝聚载体流体，例如水等，以及离散的分散密度减小体，例如中空球体。 密度减小体有助于减少间隔液，完井流体和现有井眼流体的静水压头，以防止这种流体的静水压头超过高度多孔，容易断裂的地层的断裂梯度。
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公开(公告)号：USD267927S
公开(公告)日：1983-02-15
申请号：US237099
申请日：1981-02-23
申请人： Robert C. Smith
设计人： Robert C. Smith
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公开(公告)号：US4036301A
公开(公告)日：1977-07-19
申请号：US704717
申请日：1976-07-12
CPC分类号： C09K8/46 , C04B20/1018 , C04B40/06 , C04B2103/10
摘要： A process for reducing the waiting-on-cement (WOC) time associated with the cementing of a casing string in an oil well involving the specific improvement of pumping into the well a highly retarded cement slurry containing a dispersed encapsulated accelerator, such as calcium chloride or anhydrous sodium metasilicate, wherein the encapsulating material is specifically selected such that it will melt at a temperature above the bottom-hole circulating temperature but below the bottomhole static temperature of the well to be cemented. Petroleum-derived waxes and petroleum-derived waxes in combination with vinyl resins, such as wax-compatible copolymers of ethylene and vinyl acetate, are particularly suitable as the meltable encapsulating material exhibiting excellent strength and abrasion resistance as well as serving as a moisture barrier. The improved process is particularly useful in cementing deep hot wells.
摘要翻译： 一种减少与油井中套管柱固井相关的等待水泥（WOC）时间的方法，其涉及具体改进向井中泵送含有分散的胶囊化促进剂的高阻滞水泥浆料，例如氯化钙 或无水偏硅酸钠，其中所述密封材料是特别选择的，使得其将在高于底孔循环温度但低于待接合孔的井底静态温度的温度下熔化。 石油衍生的蜡和石油衍生的蜡与乙烯基树脂的组合，例如乙烯和乙酸乙烯酯的蜡相容的共聚物，特别适用于表现出优异的强度和耐磨性以及用作防潮层的可熔融包封材料。 改进的工艺在固井深井中特别有用。
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公开(公告)号：US09113953B2
公开(公告)日：2015-08-25
申请号：US11821344
申请日：2007-06-22
申请人： Robert C. Smith
发明人： Robert C. Smith
IPC分类号： A61B17/34
CPC分类号： A61B17/3496 , A61B17/3417
摘要： An obturator assembly for penetrating tissue and being at least partially positionable within a cannula assembly includes an obturator housing, an obturator shaft connected to the obturator housing and defining a longitudinal axis, a penetrating member adjacent the distal end of the obturator shaft and an obturator shield mounted about the obturator shaft and having a distal shield nose. The obturator shield is adapted for longitudinal movement between an extended position where the penetration member is substantially enclosed within the shield nose and a retracted position where the penetrating member is at least partially exposed from the shield nose. A manually manipulative member is mounted to the obturator housing and is adapted for rotational movement about the longitudinal axis and relative to the obturator housing between an initial position corresponding to a first mode of operation where the obturator shield is secured in the extended position and the shield nose is used to penetrate tissue, and a release position corresponding to a second mode of operation operatively releasing the obturator shield to permit the obturator shield to move to the retracted position thereof to expose the penetrating member for penetrating the tissue. The obturator assembly may further include a latch member disposed within the obturator housing. The preferred latch member is in operative engagement with the obturator shield to secure the obturator shield in the extended position thereof. The latch member is actuable to release the obturator shield when the obturator housing is mated with the cannula assembly to thereby permit movement of the obturator shield toward the retracted position provided the manually manipulative member is in the release position. The obturator assembly further includes a release member which is mounted to the obturator housing and operatively coupled with the latch member. The release member is positioned to engage the cannula assembly upon mating of the obturator housing and the cannula assembly to thereby displace the release member and cause actuation of the latch member.
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公开(公告)号：US09078699B2
公开(公告)日：2015-07-14
申请号：US13165217
申请日：2011-06-21
申请人： Robert C. Smith
发明人： Robert C. Smith
CPC分类号： A61B17/3496 , A61B17/3474
摘要： A trocar system includes a cannula having a cannula housing and a cannula sleeve extending from the cannula housing, and an obturator at least partially positionable within the cannula. The obturator includes an obturator housing adapted for mating with the cannula housing, an obturator shaft connected to the obturator housing and receivable within the cannula sleeve, an obturator blade connected to the obturator shaft, a protective member including a protective guard coaxially mounted about the obturator blade and a latch member associated with the obturator housing and operatively connected to the protective guard. The obturator shaft and the obturator blade are adapted for relative rotational movement. The protective guard is adapted for longitudinal movement between a first position substantially enclosing the obturator blade and a second position to at least partially expose the obturator blade. The latch member is moveable from an initial position securing the protective guard in the first position to an actuated position operatively releasing the protective guard to permit the protective guard to move to the second position thereof. The latch member is preferably adapted to move to the actuated position upon mating of the obturator housing and the cannula housing.
摘要翻译： 套管针系统包括具有插管壳体和从插管壳体延伸的插管套管的套管，以及至少部分地可定位在套管内的闭塞器。 闭塞器包括适于与插管壳体配合的闭塞器壳体，连接到闭塞器壳体并可插入套管套管内的闭孔器，连接到闭孔轴的闭塞器叶片，保护构件，其包括围绕闭塞器同轴安装 叶片和与闭塞器壳体相关联并可操作地连接到保护防护件的闩锁构件。 闭孔轴和闭孔器适于相对旋转运动。 防护罩适于在基本上包围闭塞器叶片的第一位置和至少部分地暴露闭孔器叶片的第二位置之间的纵向运动。 闩锁构件可从初始位置移动，该初始位置将保护防护件固定在第一位置到可操作地释放保护防护件的致动位置，以允许防护罩移动到其第二位置。 闩锁构件优选地适于在闭合器壳体和插管壳体配合时移动到致动位置。
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公开(公告)号：US08845670B2
公开(公告)日：2014-09-30
申请号：US12513466
申请日：2007-12-14
申请人： Robert C. Smith
发明人： Robert C. Smith
CPC分类号： A61B17/3417 , A61B90/361 , A61B2017/0046 , A61B2017/00477 , A61B2017/320044 , A61B2017/3454 , A61B2017/346
摘要： An obturator for use in penetrating tissue includes an elongate member defining a longitudinal axis, and having a proximal end and a distal end, and a penetrating member adjacent the distal end of the elongate member. The penetrating member has a distal penetrating tip dimensioned to pass through tissue. The penetrating member defines an external wall leading toward the penetrating tip. The external wall includes a plurality of raised elements extending at least radially outwardly relative to the longitudinal axis and being in general longitudinal alignment. Adjacent raised elements are spaced along the longitudinal axis to thereby accommodate tissue displaced during passage of the penetrating member through tissue. The raised elements are dimensioned to be generally atraumatic to tissue. The raised elements may define an arcuate profile.
摘要翻译： 用于穿透组织的闭孔器包括限定纵向轴线的细长构件，并且具有近端和远端以及邻近细长构件的远端的穿透构件。 穿透构件具有尺寸适于穿过组织的远端穿透尖端。 穿透构件限定通向穿透尖端的外壁。 外壁包括多个凸起元件，其相对于纵向轴线至少径向向外延伸并且总体上纵向排列。 相邻的凸起元件沿着纵向轴线间隔开，从而容纳在穿透构件通过组织期间移位的组织。 凸起元件的尺寸通常对组织无伤害。 升高的元件可以定义弓形轮廓。
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公开(公告)号：US08591529B2
公开(公告)日：2013-11-26
申请号：US12887902
申请日：2010-09-22
申请人： Robert C. Smith
发明人： Robert C. Smith
IPC分类号： A61B17/04
CPC分类号： A61B17/0491 , A61B17/0469 , A61B17/0482 , A61B17/062 , A61B17/29 , A61B2017/06042 , A61B2017/2926
摘要： A suturing device includes a housing, a rod, a ferrule assembly, and a needle. The housing defines a guide lumen extending longitudinally therethrough. The rod is engaged with the housing and extends distally therefrom. The ferrule assembly is disposed at a distal end of the rod and is configured to releasably retain a ferrule therein. The ferrule is adapted to retain of a portion of a suture therein. The needle is configured for translation through the guide lumen defined within the housing. A distal end of the needle is configured to engage the ferrule within the ferrule assembly for removal of the ferrule from the ferrule assembly.
摘要翻译： 缝合装置包括壳体，杆，套圈组件和针。 壳体限定纵向延伸穿过其中的引导腔。 杆与壳体接合并从其向远侧延伸。 套圈组件设置在杆的远端，并且构造成将套圈可释放地保持在其中。 套圈适于将缝合线的一部分保持在其中。 针被构造成通过在壳体内限定的引导腔而平移。 针的远端构造成接合套圈组件内的套圈以从套圈组件移除套圈。
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