-
公开(公告)号：US20090012388A1
公开(公告)日：2009-01-08
申请号：US12113384
申请日：2008-05-01
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , G01R33/34046 , G01R33/34053 , G01R33/341 , G01R33/3415 , G01R33/365
摘要： An interventional device includes a base having an upper surface, a cup-shaped frame, a probe positioner, and a radio frequency coil. The cup-shaped frame is mounted to the base and configured to receive a body part. The probe positioner is mounted to at least one of the base and the cup-shaped frame, and is capable of rotating about a longitudinal axis which is perpendicular to the upper surface of the base. The radio frequency coil is mounted to the cup-shaped frame and is configured to rotate about the longitudinal axis.
摘要翻译： 介入装置包括具有上表面的底座，杯形框架，探针定位器和射频线圈。 杯形框架安装到基座并构造成容纳身体部分。 探针定位器安装在基座和杯形框架中的至少一个上，并且能够围绕垂直于基部的上表面的纵向轴线旋转。 无线电频率线圈安装到杯形框架并且被构造成围绕纵向轴线旋转。
-
公开(公告)号：US5971027A
公开(公告)日：1999-10-26
申请号：US881865
申请日：1997-06-24
摘要： An energy storage device particularly suitable for use in hybrid fluid power systems and fluid systems utilizing accumulators. A piston accumulator has a primary face on one end of the piston and a series of secondary faces on the opposite end of the piston. Each face has an associated chamber, and one or more of the chambers of the secondary faces may be selectively connected to a system pressure line. Since the pressure of the system pressure line depends on (and varies with) the number of chambers connected thereto, the potential energy of the chamber of the primary face may be delivered to the system pressure line at a variety of output pressures. Similarly, the chamber of the primary face may be recharged with energy at a variety of input pressures.
摘要翻译： 特别适用于混合流体动力系统和利用蓄能器的流体系统的储能装置。 活塞蓄能器在活塞的一端具有初级面，在活塞的另一端具有一系列次表面。 每个表面都具有相关联的腔室，并且次表面的一个或多个腔室可以选择性地连接到系统压力线。 由于系统压力线的压力取决于连接到其上的室的数量（并且随其变化），所以主表面腔的势能可以以各种输出压力被输送到系统压力管线。 类似地，初级面的腔室可以以各种输入压力的能量进行再充电。
-
公开(公告)号：US5067456A
公开(公告)日：1991-11-26
申请号：US614208
申请日：1990-11-16
摘要： An internal combustion engine utilizing hypocycloid movement has a crankshaft having a small crank pin construction wherein the piston rod end is supported rotatably on an eccentric disc which, in turn, is journalled for rotation on the crankpin. A rigid interconnected subassembly of the eccentric disc, counterweights and a pinion gear is rotatably mounted on the crankpin in a manner to distribute the piston loads to the opposite pin ends, thereby reducing crankpin bending stresses. The main crankshaft support bearings are located directly adjacent the crankpin ends, thereby further reducing crankpin bending stresses. A two-piece crankshaft construction allows the crankshaft to be preassembled for machining, disassembled for mounting the piston subassembly thereon, and reassembled. The modified hypocycloid gearing assembly includes a rotatable internal ring gear transmitting a portion of the torque produced by the piston force to the output shaft via the pinion gear and an idler gear and sun gear assembly. The remaining portion of the torque produced by the piston force is transmitted directly through the crankshaft. An adjustable idler gear mounting allows the modified gear assembly to be adjusted to compensate for gear tooth backlash.
摘要翻译： 利用次摆线运动的内燃机具有具有小曲柄销结构的曲轴，其中活塞杆端可旋转地支撑在偏心盘上，该偏心圆盘又被转动支承在曲轴销上。 偏心盘，配重和小齿轮的刚性互连子组件以将活塞负载分配到相对的销端的方式可旋转地安装在曲柄销上，从而减小曲柄销弯曲应力。 主曲轴支撑轴承直接位于曲柄销端部附近，从而进一步减小曲柄销弯曲应力。 两件式曲轴结构允许将曲轴预组装用于机械加工，拆卸以将活塞组件安装在其上并重新组装。 改进的下摆线圈齿轮组件包括可旋转的内齿圈，其将由活塞力产生的扭矩的一部分经由小齿轮传递到输出轴，以及惰轮和太阳齿轮组件。 由活塞力产生的扭矩的剩余部分直接通过曲轴传递。 可调节的空转齿轮安装允许修改的齿轮组件被调节以补偿齿轮齿隙。
-
公开(公告)号：US06558337B2
公开(公告)日：2003-05-06
申请号：US09836025
申请日：2001-04-17
申请人： Eric Maitland Dvorak , Justin Edward Kolterman , William Christopher Andrae , Frederick Kelcz , Frank J. Fronczak
发明人： Eric Maitland Dvorak , Justin Edward Kolterman , William Christopher Andrae , Frederick Kelcz , Frank J. Fronczak
IPC分类号： A61B1900
CPC分类号： A61B90/17 , A61B34/70 , A61B90/11 , A61B90/50 , A61B2017/3405 , A61B2090/374
摘要： A positioner for centering or otherwise situating medical devices such as biopsy needles with respect to a human body includes a clamp for receiving a portion of the human body (e.g., a breast), a carriage which moves along a carriage path next to the clamp, and a positioning arm pivotally mounted to the carriage and having a mount for a medical device thereon. The carriage may therefore carry the positioning arm along the carriage path to a desired location adjacent to the clamp, at which point the positioning arm may be pivoted to situate a medical device within the device mount at a desired location adjacent the portion of the body within the clamp. The components of the positioner are preferably made of materials that do not interfere with medical imaging instrumentation (e.g., MRI scanners), though the positioner may include markers at desired locations (e.g., on the positioning arm adjacent the device mount) which are visible by the imaging instrumentation so that the location of the medical device may be ascertained during imaging.
-
公开(公告)号：US06223604B1
公开(公告)日：2001-05-01
申请号：US09235626
申请日：1999-01-22
申请人： Frank J. Fronczak , Richard T. Hage
发明人： Frank J. Fronczak , Richard T. Hage
IPC分类号： G01N302
CPC分类号： A61F2/468 , G01L5/16 , G01N3/04 , G01N2033/0088
摘要： A multiaxial testing apparatus is shown and described wherein items to be tested are affixed to opposing mounts, and wherein at least one of these mounts defines a constant link of a mobile truss. By varying the lengths of other links within the mobile truss, the pose of the constant link mount is changed, thereby altering the pose and/or loading on the test item affixed between the mounts. In preferred embodiments, the mobile truss includes six variable-length links situated between two constant links, at least one of which is a mount, so that a test item affixed between the mounts may be moved and/or loaded in six degrees of freedom.
摘要翻译： 示出并描述了一种多轴测试装置，其中要测试的物品被固定到相对的安装件上，并且其中这些安装件中的至少一个限定了移动桁架的恒定连杆。 通过改变移动桁架内的其它链节的长度，恒定链接安装座的姿态被改变，从而改变固定在安装件之间的测试项目的姿态和/或载荷。 在优选实施例中，移动桁架包括位于两个恒定连杆之间的六个可变长度连杆，其中至少一个是安装件，使得固定在安装件之间的测试项目可以以六个自由度移动和/或加载。
-
公开(公告)号：US4381023A
公开(公告)日：1983-04-26
申请号：US238401
申请日：1981-02-26
申请人： Frank J. Fronczak , John F. Hunt
发明人： Frank J. Fronczak , John F. Hunt
摘要： A power back-up roll for a rotary veneer lathe comprises a drive roller for applying a rotational force to the outer periphery of a log axially mounted on the veneer lathe, a controllable drive source for driving the roller and a servo-control system for maintaining the static friction between the roller and the log. In a preferred embodiment of the invention, the servocontrol system includes a first DC-generator tachometer for monitoring the peripheral speed of the log, a second DC-generator tachometer for monitoring the peripheral speed of the roller; and a feedback loop, operatively associated with the controllable drive source as well as the first and second tachometers, for matching the peripheral speed of the roller to that of the log.
摘要翻译： 用于旋转单板车床的动力支撑辊包括用于向轴向安装在单板车床上的原木的外周施加旋转力的驱动辊，用于驱动辊的可控驱动源和用于维持的伺服控制系统 辊与原木之间的静摩擦力。 在本发明的优选实施例中，伺服控制系统包括用于监测原木的圆周速度的第一DC发生器转速计，用于监测辊的圆周速度的第二DC发生器转速计; 以及与可控驱动源以及第一和第二转速计可操作地相关联的反馈回路，用于将辊的圆周速度与日志的圆周速度相匹配。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.018 秒)
