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1. 发明授权

US4865804A Fuel rod end plug 失效
标题翻译：燃油棒端塞
公开(公告)号：US4865804A
公开(公告)日：1989-09-12
申请号：US606424
申请日：1984-05-02
申请人： Robert K. McGeary , George D. Bucher
发明人： Robert K. McGeary , George D. Bucher
IPC分类号： G21C3/10 , G21C21/02
CPC分类号： G21C3/10 , G21Y2002/302 , G21Y2004/30 , Y02E30/40
摘要： A nuclear reactor fuel rod end plug (100) is adapted to be welded within each end of a nuclear reactor fuel rod cladding tube, especially by means of laser beam welding techniques, although TIG welding techniques may also be employed, wherein an annular groove (126) is defined about the external periphery of the end plug (100) so as to extend radially inwardly of the long land region (118) of the plug (100) within the vicinity of the juncture of the land surface (118) and the shoulder portion (120) at which location the girth weld between the end plug (100) and the cladding tubing will be defined. When employing laser beam welding techniques to accomplish the butt-type girth weld between the plug (100) and the cladding tube, the groove (126) serves to eliminate porosity defects within the weldment, and when employing TIG welding techniques to accomplish the butt-type girth weld between the plug (100) and the cladding tube, the groove (126) serves to eliminate porosity defects within the weldment without requiring the plug land (118 ) and shoulder (120) surfaces to be accurately machined in accordance with precisely critical dimensional tolerances, and similarly for the mating surfaces of the cladding tube, as had previously been mandatory in accordance with prior art TIG welding techniques.
摘要翻译：核反应堆燃料棒端塞（100）适于在核反应堆燃料棒包层管的每个端部焊接，特别是通过激光束焊接技术，尽管也可采用TIG焊接技术，其中环形槽 126）围绕端塞（100）的外周限定，以便在接地表面（118）的接合部附近和插头（100）的长边区域（118）的径向向内延伸，肩部（120），在该位置处将限定端塞（100）和包层管之间的环形焊缝。当使用激光束焊接技术来实现塞子（100）和包层管之间的对接环形焊缝时，槽（126）用于消除焊件内的孔隙缺陷，并且当采用TIG焊接技术来完成对接 - 插塞（100）和包层管之间的环形焊缝，槽（126）用于消除焊件内的孔隙缺陷，而不需要根据精确关键的精确加工插头焊盘（118）和肩部（120）表面尺寸公差，并且类似地对于包层管的配合表面，如先前根据现有技术TIG焊接技术所必需的。

2. 发明授权

US4587094A Fuel rod assembly for a nuclear reactor 失效
标题翻译：用于核反应堆的燃料棒组件
公开(公告)号：US4587094A
公开(公告)日：1986-05-06
申请号：US584229
申请日：1984-02-27
申请人： George D. Bucher
发明人： George D. Bucher
IPC分类号： G21C3/10
CPC分类号： G21C3/10 , G21Y2002/302 , G21Y2004/30 , G21Y2004/40 , Y02E30/40
摘要： An improved end plug is provided for a nuclear fuel rod assembly. The end plug is of an integral construction having an upper shoulder portion which abuts the top edge of a fuel tube and a circular body portion adapted to be inserted into the end of the fuel tube in a force fitting relationship. A flat is provided on the lower body portion so as to define a gap between the lower body portion and the inner wall of the fuel tube upon partial insertion of the plug into the tube, the gap providing an orifice for introducing an inert-gas under pressure into the tube. Upon total insertion of the lower body portion of the plug into the tube, the gap is eliminated and metal-to-metal contact is made between the lower body portion of the plug and the end of the fuel tube for sealing the pressurized gas and a nuclear fuel within the fuel tube.
摘要翻译：为核燃料棒组件提供改进的端塞。端塞是一体的结构，其具有与肩部接触的燃料管的顶部边缘的上部肩部和适于以力配合关系插入燃料管的端部的圆形主体部分。在下部主体部分设置有一个平面，以便在将塞子部分插入管中时，在下部主体部分和燃料管的内壁之间形成间隙，该间隙提供用于引入惰性气体的孔口压入管中。当将插头的下部主体部分完全插入到管中时，消除间隙并且在插头的下部主体部分和用于密封加压气体的燃料管的端部之间形成金属与金属的接触，以及燃料管内的核燃料。

3. 发明授权

US4918991A Method for sampling nuclear fuel pellets with a robot gripper mechanism 失效
标题翻译：用机器人夹持机构对核燃料颗粒进行取样的方法
公开(公告)号：US4918991A
公开(公告)日：1990-04-24
申请号：US280867
申请日：1988-12-07
申请人： George D. Bucher , John T. DiGrande , Lester C. Frye , Mark S. Stoutamire
发明人： George D. Bucher , John T. DiGrande , Lester C. Frye , Mark S. Stoutamire
IPC分类号： B25J15/10 , B25J17/02 , B65G47/90 , G21C17/06
CPC分类号： B65G47/90 , B25J15/103 , B25J17/0208 , G21C17/06
摘要： A gripper mechanism for sampling nuclear fuel pellets at a predetermined depth in a stack of pellets includes a housing and gripping fingers movably mounted to the housing. The fingers are preferably three relatively thin, arcuate-shaped, blade-like fingers angularly displaced from one another for grasping the pellet at spaced locations about its circumference. The fingers have lower facing surfaces which are brought adjacent to one another for engaging and grasping a pellet when the fingers are moved toward their closed position and retracted remote from one another for disengaging and releasing the pellet when the fingers are moved toward their opened position. Guide members interconnecting the housing with a movable support structure, together with coil springs received about the guide members and extending between the housing and support structure, resiliently and yieldably mount the housing and fingers for movement toward the stack of pellets along a generally linear path ahead of the support structure as the support structure is moved toward the stack. Concurrently the yieldable mounting permits the housing to rock slightly about an axis extending transverse to the linear path for facilitating a burrowing-type movement of the gripping fingers into the stack of pellets to be sampled. Also, a proximity switch detects when the fingers are closed and a load transducer senses when an overload condition has been reached.
摘要翻译：用于在堆叠的颗粒中的预定深度处采样核燃料颗粒的夹持机构包括可移动地安装到壳体的壳体和夹紧指状物。手指优选地是相对于彼此成角度地移位的三个相对薄的弓形形状的手指，用于在围绕其圆周的间隔位置处抓住该颗粒。手指具有彼此相邻的下表面，当手指朝向其关闭位置移动并且彼此远离地缩回时，用于接合和抓握颗粒，以在手指朝向其打开位置移动时分离和释放颗粒。引导构件将壳体与可移动支撑结构互连，以及围绕引导构件容纳并且在壳体和支撑结构之间延伸的螺旋弹簧，弹性地并且可靠地安装壳体和手指，以沿着前方的大致线性路径向着堆积的颗粒移动当支撑结构朝向堆叠移动时，支撑结构的位置。同时，可屈服的安装允许外壳围绕横向于线性路径延伸的轴线稍微摇摆，以便于夹紧指状物进入待采样的颗粒堆叠中的挖坑式移动。此外，接近开关检测手指何时闭合，并且负载传感器感测何时达到过载状况。

4. 发明授权

US4642016A Apparatus for unloading nuclear fuel pellets from a sintering boat 失效
标题翻译：用于从烧结船卸载核燃料颗粒的装置
公开(公告)号：US4642016A
公开(公告)日：1987-02-10
申请号：US637371
申请日：1984-08-03
申请人： George D. Bucher , Theodore E. Raymond
发明人： George D. Bucher , Theodore E. Raymond
IPC分类号： B65G47/88 , B65B69/00 , B65G47/90 , B65G47/96 , B65G65/23 , G21C21/00 , G21C21/02 , B65G65/34
CPC分类号： B65G65/23
摘要： A nuclear fuel pellet unloading apparatus includes a boat clamping and inverting mechanism which receives a boat loaded with pellets, clamps the boat and pivots it along an arcuate path adjacent a pellet transfer shroud from an initial upright position to a generally inverted position and then back to the upright position. As the loaded boat is pivoted, it progressively inverts next to an arcuate wall portion of the shroud which coacts to contain individual pellets as they begin to empty from the boat. The emptied pellets flow down the shroud to the next station. By the time the boat reaches its inverted position all of the pellets have emptied from the boat. The unloading apparatus also includes a pair of pneumatic cylinders which are selectively actuated for respectively delivering a loaded boat from a boat conveyor to the inverting mechanism and ejecting an empty boat from the inverting mechanism back to the boat conveyor.
摘要翻译：一种核燃料颗粒卸载装置包括一个接纳装载有颗粒的船的船夹合和翻转机构，夹紧船，并将其沿着与颗粒传送罩相邻的弧形路径从初始直立位置枢转到大致倒置的位置，然后返回直立的位置。当装载的船被枢转时，它逐渐反转在护罩的弧形壁部分旁边，当它们从船上开始排空时，它们共同构成以容纳单个的颗粒。排空的颗粒沿着护罩流到下一站。当船到达倒立位置时，所有的小球从船上倒空。卸载装置还包括一对气动缸，其被选择性地致动以分别将负载的船从船运输机运送到翻转机构，并将空船从翻转机构返回到船运输机。

5. 发明授权

US5024574A Random fuel pellet vacuum transfer apparatus 失效
标题翻译：随机燃料颗粒真空传递装置
公开(公告)号：US5024574A
公开(公告)日：1991-06-18
申请号：US373074
申请日：1989-06-29
申请人： John F. Wilson , Enrique R. Rosal , George D. Bucher
发明人： John F. Wilson , Enrique R. Rosal , George D. Bucher
IPC分类号： B25J15/06 , B65G47/91 , G21C19/18 , G21C21/02
CPC分类号： G21C21/02 , B65G47/91
摘要： A vacuum transfer apparatus for use in en masse vacuum gripping nuclear fuel pellets includes an enclosure defining a vacuum chamber and having an open bottom, a rigid support gridwork spanning and attached to the enclosure open bottom, and a perforated mat attached to the gridwork along a side opposite from the enclosure. The mat is composed of resiliently flexible material and has a matrix of spaced apart holes of a cross-sectional size substantially smaller than the diameter of the pellets. The support gridwork defines a plurality of passages of a cross-sectional size substantially larger than that of the holes in the mat. The gridwork passages provide the sole path for communicating a vacuum from the enclosure chamber to the mat holes for vacuum gripping and holding the pellets at their upper end surfaces against the mat. A perforated tray is employed with the vacuum transfer apparatus for supporting the fuel pellets. The perforated tray has a plurality of openings of substantially the same size and spacing as the holes in the mat. Those of the openings not covered by thy pellets supported on the tray prevent formation of a vacuum between the mat and tray which could prevent lifting of the pellets from the tray.

6. 发明授权

US4815971A Multi-tier load fixture for a top-loading furnace furnace 失效
标题翻译：用于顶部装载炉膛的多层负载固定装置
公开(公告)号：US4815971A
公开(公告)日：1989-03-28
申请号：US126986
申请日：1987-11-27
申请人： George D. Bucher
发明人： George D. Bucher
IPC分类号： C21D1/00 , C22B1/18 , F27B17/02 , F27D5/00 , F27D11/02 , H05B3/00 , F27B21/04
CPC分类号： F27D11/02 , C22B1/18 , F27B17/02 , F27D5/005 , H05B3/00
摘要： A self-aligning fixture for use in a high temperature top-loading furnance includes multiple stacked trays to optimize load placement and capacity and to minimize fixture heat absorption. The fixture is manipulated by a handling tool to insert, position, and withdraw the fixture without obscuring the chamber and includes self-aligning blackbody radiators insertable by a handling tool into the optical path of an optical pyrometer and onto a selected tray for temperature monitoring of the load therein. A calibration blackbody radiator allows independent pyrometer verification of an inserted thermocouple.

7. 发明授权

US4687605A Manufacturing automation system for nuclear fuel rod production 失效
标题翻译：核燃料棒生产制造自动化系统
公开(公告)号：US4687605A
公开(公告)日：1987-08-18
申请号：US702520
申请日：1985-02-19
申请人： Francis Cellier , Robert T. Graulty , Wendell L. Johnson , David M. Batson , John C. Limpert , Christopher K. C. Wu , George D. Bucher , Clarence D. John, Jr. , John E. Steinkirchner , Paula J. Larouere , Hemant H. Shah , Robert A. Williams
发明人： Francis Cellier , Robert T. Graulty , Wendell L. Johnson , David M. Batson , John C. Limpert , Christopher K. C. Wu , George D. Bucher , Clarence D. John, Jr. , John E. Steinkirchner , Paula J. Larouere , Hemant H. Shah , Robert A. Williams
IPC分类号： G21C21/02 , G21C21/00 , C01G43/02 , C01G43/06 , G21C3/62
CPC分类号： G21C21/02
摘要： An automated fuel rod production system includes a radioactive powder fabrication and processing stage, a pellet fabrication stage, a pellet processing stage, a tube preparation stage and a fuel rod fabrication and inspection stage, all of which provide a continuous (paced) mode of operation from the conversion of a radioactive gas to powder, through the fabrication of the powder into pellets, to completion of the assembly of the fuel rods. Extra capacity is designed into the system at critical points in the powder processing and pellet fabrication and processing stages to facilitate the continuous, paced mode of operation.
摘要翻译：一种自动化燃料棒生产系统，包括放射性粉末制造和加工阶段，丸粒制造阶段，丸粒加工阶段，管准备阶段和燃料棒制造和检查阶段，所有这些都提供连续（起搏）的操作模式从放射性气体转化为粉末，通过将粉末制成颗粒，完成燃料棒的组装。在粉末处理和颗粒制造和处理阶段的关键点，将系统设计成额外的容量，以促进连续的起搏运行模式。

8. 发明授权

US4830565A Robot gripper mechanism and method for sampling nuclear fuel pellets 失效
标题翻译：机器人夹具机构和核燃料颗粒采样方法
公开(公告)号：US4830565A
公开(公告)日：1989-05-16
申请号：US936561
申请日：1986-12-01
申请人： George D. Bucher , John T. DiGrande , Lester C. Frye , Mark S. Stoutamire
发明人： George D. Bucher , John T. DiGrande , Lester C. Frye , Mark S. Stoutamire
IPC分类号： G21C21/02 , B25J15/10 , B25J17/02 , B65G47/90 , G21C17/06
CPC分类号： B65G47/90 , B25J15/103 , B25J17/0208 , G21C17/06 , Y10S294/902 , Y10S294/907
摘要： A gripper mechanism for sampling nuclear fuel pellets at a predetermined depth in a stack of pellets includes a housing and gripping fingers movably mounted to the housing. The fingers are preferably three relatively thin, arcuate-shaped, blade-like fingers angularly displaced from one another for grasping the pellet at spaced locations about its circumference. The fingers have lower facing surfaces which are brought adjacent to one another for engaging and grasping a pellet when the fingers are moved toward their closed position and retracted remote from one another for disengaging and releasing the pellet when the fingers are moved toward their opened position. Guide members interconnecting the housing with a movable support structure, together with coil springs received about the guide members and extending between the housing and support structure, resiliently and yieldably mount the housing and fingers for movement toward the stack of pellets along a generally linear path ahead of the support structure as the support structure is moved toward the stack. Concurrently the yieldable mounting permits the housing to rock slightly about an axis extending transverse to the linear path for facilitating a burrowing-type movement of the gripping fingers into the stack of pellets to be sampled. Also, a proximity switch detects when the fingers are closed and a load transducer senses when an overload condition has been reached.
摘要翻译：用于在堆叠的颗粒中的预定深度处采样核燃料颗粒的夹持机构包括可移动地安装到壳体的壳体和夹紧指状物。手指优选地是相对于彼此成角度地移位的三个相对薄的弓形形状的手指，用于在围绕其圆周的间隔位置处抓住该颗粒。手指具有彼此相邻的下表面，当手指朝向其关闭位置移动并且彼此远离地缩回时，用于接合和抓握颗粒，以在手指朝向其打开位置移动时分离和释放颗粒。引导构件将壳体与可移动支撑结构互连，以及围绕引导构件容纳并且在壳体和支撑结构之间延伸的螺旋弹簧，弹性地并且可靠地安装壳体和手指，以沿着前方的大致线性路径向着堆积的颗粒移动当支撑结构朝向堆叠移动时，支撑结构的位置。同时，可屈服的安装允许外壳围绕横向于线性路径延伸的轴线稍微摇摆，以便于夹紧指状物进入待采样的颗粒堆叠中的挖坑式移动。此外，接近开关检测手指何时闭合，并且负载传感器感测何时达到过载状况。

9. 发明授权

US4765453A Pellet-press-to-sintering-boat nuclear fuel pellet loading system 失效
标题翻译：颗粒压机 - 烧结船核燃料颗粒装载系统
公开(公告)号：US4765453A
公开(公告)日：1988-08-23
申请号：US43059
申请日：1987-04-27
申请人： George D. Bucher
发明人： George D. Bucher
IPC分类号： B65G47/14 , B65G69/16 , F27D3/00 , F27D3/10 , G21C21/00 , B65G47/26
CPC分类号： G21C21/00 , B65G47/1457 , B65G69/16 , F27D3/10 , B65G2207/10 , F27D2003/0008
摘要： A system for loading friable nuclear fuel pellets into sintering boats from a pellet press which ejects newly made pellets. A chute receives the ejected pellets and discharges them into an upright bowl at a location towards the top of the bowl near its inner surface with a tangential horizontal component of velocity. The bowl, which has an open smaller diameter bottom, is rotated such that the bowl near the pellet-discharge location has a velocity which generally matches the magnitude and direction of the horizontal component of the velocity of the pellets at the discharge location. A conveyor moves a line of adjacently positioned boats horizontally beneath the bottom of the bowl. A flexible strap which cushions the pellets as they enter a sintering boat also acts as a seal between boats.
摘要翻译：一种用于将轻质核燃料颗粒从颗粒压制机装载到烧结船中的系统，其将新造粒料喷出。滑槽接收喷射的颗粒并将其排出到靠近其内表面的位于碗的顶部的位置处的直立碗中，并以切向水平的速度分量排出。具有开口较小直径底部的碗被旋转，使得靠近丸粒排出位置的碗具有通常与排出位置处的粒料的速度的水平分量的大小和方向一致的速度。输送机将一排相邻的船只水平地移动到碗底部。当颗粒进入烧结船时，缓冲颗粒的柔性带也用作船之间的密封。

10. 发明授权

US4696190A Tube straightness checking apparatus 失效
标题翻译：管直线度检查装置
公开(公告)号：US4696190A
公开(公告)日：1987-09-29
申请号：US775210
申请日：1985-09-12
申请人： George D. Bucher , John A. Catanese , William D. Clawson
发明人： George D. Bucher , John A. Catanese , William D. Clawson
IPC分类号： G01B7/34 , G21C17/06 , G01B5/20 , G01B7/28
CPC分类号： G01B7/345 , G21C17/06
摘要： A tube straightness checking apparatus includes a gauging mechanism disposed along a linear path and being operable to check the straightness of the tube as it is moved along the path past the mechanism. The gauging mechanism is operable to detect deviation of the tube from an imaginary centerline which is generally coincident with the linear path. The apparatus also includes linear hearing sets which guide a tube along the generally linear path past the gauging mechanism. Two embodiments of the gauging mechanism are disclosed. In the preferred embodiment, the gauging mechanism includes a gauge plate with a circular gauging orifice defined therein through which the tube passes as it is moved along the linear path. The gauge plate is electrically conductive and forms part of an electric circuit which is operable to provide an indication of an out-of-straightness condition upon the tube contacting the gauge plate as the tube moves along the linear path through the gauging orifice of the plate. In an alternative embodiment, the gauging mechanism includes a pair of orthogonally arranged analog proximity sensors disposed along the linear path and being operable to detect deviation of the tube from the imaginary centerline as the tube moves past the sensors along the linear path.
摘要翻译：管直线性检查装置包括沿着线性路径设置的测量机构，并且可操作以在沿着沿机构的路径移动时检查管的直线度。测量机构可操作以检测管与通常与线性路径重合的假想中心线的偏差。该装置还包括线性听力组，其沿着通过测量机构的大致线性路径引导管。公开了测量机构的两个实施例。在优选实施例中，测量机构包括具有限定在其中的圆形测量孔的量板，当管沿着线性路径移动时，管通过该平板。测量板是导电的并且形成电路的一部分，该电路可操作以在管接触计量板时提供不平直状态的指示，因为管沿着线路径移动通过板的测量孔。在替代实施例中，测量机构包括沿着线性路径设置的一对正交布置的模拟接近传感器，并且可操作以当管沿着线性路径移动经过传感器时，检测管与假想中心线的偏差。

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