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1. 发明授权

US5076997A Pellet transfer apparatus and method 失效
标题翻译：颗粒转移装置及方法
公开(公告)号：US5076997A
公开(公告)日：1991-12-31
申请号：US536926
申请日：1990-06-12
申请人： John T. DiGrande , Thomas B. Huggins, Sr. , David V. Lambert , Elwyn Roberts
发明人： John T. DiGrande , Thomas B. Huggins, Sr. , David V. Lambert , Elwyn Roberts
IPC分类号： G01B11/10 , G21C17/06
CPC分类号： G01B11/105 , G21C17/06
摘要： An inspection system has a pellet diameter inspecting station and an apparatus for transferring pellets past the station. The apparatus includes a stationary support track for aligning and guiding pellets in a row along a linear path, and a transfer mechanism operable through forward and reverse strokes. The transfer mechanism has first and second grippers actuatable between pellet gripping and releasing positions and operable to grip respective rearmost pellets in a first row of pellets to be advanced past the inspecting station and in a second row of pellets previously advanced past the inspecting station. The transfer mechanism is operable to move from an initial position through the forward stroke to advance the pellets at a constant velocity along the linear path. The transfer mechanism actuates the second gripper from its releasing to gripping position before actuating the first gripper from its releasing to gripping position and starts movement from the initial position along the forward stroke before the first gripper is so actuated such that a gap is formed between the previously advanced row of pellets and the row of pellets to be advanced so as to prevent buckling of pellets in the latter row. The transfer mechanism is also operable to actuate the grippers to release the pellets and move through the return stroke relative to the released pellets back to the initial position.
摘要翻译：检查系统具有颗粒直径检查站和用于将颗粒转移通过该站的装置。该装置包括用于沿着线性路径排列和引导一排的颗粒的固定支撑轨道，以及通过前进和后退行程操作的传送机构。传送机构具有第一和第二夹持器，其可在颗粒夹持和释放位置之间致动，并且可操作以夹持第一排颗粒中的相应的最后面的颗粒，以将其提前经过检查站和先前通过检查站的第二排颗粒。传送机构可操作以从初始位置移动到前进行程，以沿着线性路径恒定速度推动球团。在第一夹持器被致动之前，传动机构致动第二夹持器从其释放到夹持位置，然后使第一夹持器从其释放到夹持位置，并且在第一夹持器被致动之前沿着向前冲程从初始位置开始移动，先前先进的一排颗粒和一排颗粒被推进，以防止在后一排中颗粒的翘曲。传送机构还可操作地致动夹持器以释放颗粒并且相对于释放的颗粒返回到初始位置移动通过返回行程。

2. 发明授权

US5043588A Pellet diameter measurement apparatus and method detecting non-orthogonally to the common axis of the pellets 失效
标题翻译：颗粒直径测量装置和方法，非正交地检测颗粒的共同轴线
公开(公告)号：US5043588A
公开(公告)日：1991-08-27
申请号：US540041
申请日：1990-06-18
申请人： John T. DiGrande , David V. Lambert
发明人： John T. DiGrande , David V. Lambert
IPC分类号： G01B11/10 , G21C17/06
CPC分类号： G01B11/105
摘要： An pellet diameter inspection system has a laser scanning apparatus for measuring and detecting the outside diameter of the pellets and an apparatus for transferring pellets past the laser scanning apparatus. A stationary support track aligns and guides pellets in a row along a linear path past the laser scanning apparatus with the pellets being advances along the path by the transfer apparatus operating through forward and reverse strokes. The laser scanning apparatus includes a laser beam light source and receiver disposed on opposite sides of the linear path in a non-orthogonal orientation to the common axis of the aligned pellets and operable for respectively emitting and receiving a laser beam directed across the pellets along a directional path extending in a non-orthogonal orientation to common axis of the pellets which will eliminate detection of adjacent ends of the pellets in the row.

3. 发明授权

US5331676A Calibration fixture for induction furnace 失效
标题翻译：感应炉校准夹具
公开(公告)号：US5331676A
公开(公告)日：1994-07-19
申请号：US162246
申请日：1993-12-06
申请人： David V. Lambert , Mark P. Goldenfield
发明人： David V. Lambert , Mark P. Goldenfield
IPC分类号： G21C3/07 , G21C21/02 , H05B6/22 , G21C19/00
CPC分类号： H05B6/22 , G21C21/02 , G21C3/07 , G21Y2002/104 , G21Y2002/204 , G21Y2004/201
摘要： Nuclear fuel rod tubes of zirconium alloy are heat treated in an induction furnace to produce a protective oxide coating two to fifteen microns in thickness. The furnace is only slightly larger than the tubes and receives the endmost eight inches of the tube. The furnace is controllable in zones along the tube. To calibrate the furnace to produce the desired temperature profile, typically a flat profile at a temperature between 650.degree. and 750.degree. C..+-.1.5.degree. C., a temperature calibration probe is provided with spaced thermocouples for sensing the temperature developed in the probe at each of the zones when heated. The probe is made of inconel 600 stainless or the like, and is dimensioned and shaped to correspond closely to the dimensions of the fuel rod tubes, including having a closed chamfered end. At the opposite end the probe protrudes from the furnace, where the thermocouple leads are terminated. The leads pass through a potting compound in the probe, such as magnesium oxide. Whereas the probe conductive structures are substantially identical to the tube, the probe responds to the electromagnetic field in the induction furnace substantially the same as does the end of the tube, permitting calibration of the induction furnace zones for a desired temperature profile, e.g., flat along the length of the tube, notwithstanding differences in induced currents that would otherwise occur due to the end of the tube or the adjacent tube material.
摘要翻译：在感应炉中对锆合金的核燃料棒管进行热处理，以产生厚度为2至15微米的保护性氧化物涂层。炉子只是稍大于管子，并且接收到最后8英寸的管子。炉子沿着管子的区域是可控的。为了校准炉子以产生所需的温度分布，通常在650至750℃±1.5℃的温度下具有平坦的轮廓，温度校准探针设置有间隔的热电偶，用于感测在在加热时在每个区域进行探头。探头由不锈钢等不锈钢制成，尺寸和形状与燃料棒管的尺寸密切对应，包括具有闭合的倒角端。在相对端，探头从炉子突出，热电偶引线端接。引线通过探针中的灌封化合物，例如氧化镁。而探针导电结构与管基本相同，探针对感应炉中的电磁场进行响应，其基本上与管的端部相同，允许感应炉区域校准所需的温度分布，例如平坦尽管管的长度方面，尽管由于管或相邻管材料的端部而导致的感应电流的差异。

4. 发明授权

US5187348A Weld electrode-to-workpiece arc gap setting apparatus and method 失效
标题翻译：焊接电极对工件电弧间隙设定装置及方法
公开(公告)号：US5187348A
公开(公告)日：1993-02-16
申请号：US784959
申请日：1991-10-30
申请人： Gary W. Cuba , Robert D. Isaacson , David V. Lambert
发明人： Gary W. Cuba , Robert D. Isaacson , David V. Lambert
IPC分类号： B23K9/127 , B23K9/067 , B23K9/073
CPC分类号： B23K9/073 , B23K9/067
摘要： An apparatus for setting an arc gap between a weld electrode and a workpiece includes a control arrangement and a direct current stepping motor operated in a forward mode by the control arrangement to move the weld electrode toward and away from the workpiece to respectively advance and retract the electrode into and from physical contact with the workpiece. The apparatus also includes an electrical circuit connected to the weld electrode and the workpiece for defining an electrical path to supply electrical energy sufficient to generate a welding arc between the electrode and workpiece, and an electrical continuity sensor connected to the electrical path and being operable for sensing the opening and closing of electrical continuity of the electrical path and for generating a trigger signal to the control arrangement in response to sensing the closing of continuity of the electrical path by the electrode making physical contact with the workpiece. The control arrangement in response to receipt of the trigger signal from the continuity sensor causes the electric motor to operate in a reverse mode to retract the electrode from physical contact with the workpiece to a welding position located a predetermined distance from the workpiece. A vacuum relay is operable to isolate the continuity sensor from the electrical path in response to receipt of an output signal generated by the control arrangement when the electrode reaches the welding position.
摘要翻译：用于设定焊接电极和工件之间的电弧间隙的装置包括控制装置和通过控制装置以正向模式操作的直流步进电动机，以使焊接电极朝向和远离工件移动以分别前进和后退电极与工件物理接触。该装置还包括连接到焊接电极和工件的电路，用于限定电路以提供足以在电极和工件之间产生焊接电弧的电能，以及连接到电气路径的电连续性传感器，感测电路的电连续性的打开和闭合，并且响应于通过与工件进行物理接触的电极感测到电路径的连续性的闭合而产生到控制装置的触发信号。响应于从连续性传感器接收到触发信号的控制装置使得电动机以反向模式操作以使电极与工件的物理接触缩回到位于距离工件预定距离的焊接位置。真空继电器可操作以响应于在电极到达焊接位置时接收到由控制装置产生的输出信号而将连续性传感器与电气路径隔离。

5. 发明授权

US5043133A Automated nuclear fuel rod pattern loading system 失效
标题翻译：自动核燃料棒图案加载系统
公开(公告)号：US5043133A
公开(公告)日：1991-08-27
申请号：US435130
申请日：1989-11-13
申请人： David V. Lambert , Theodore W. Nylund , John W. Byers , Damon E. Haley, Jr. , Joseph V. Cioffi
发明人： David V. Lambert , Theodore W. Nylund , John W. Byers , Damon E. Haley, Jr. , Joseph V. Cioffi
IPC分类号： G21C3/334 , G21C21/02
CPC分类号： G21C21/02 , G21C3/334 , G21Y2002/205 , G21Y2002/206 , G21Y2002/302 , G21Y2004/30 , G21Y2004/401 , Y02E30/40
摘要： Apparatus for loading fuel rods in a desired enrichment pattern includes a carrousel, an elongated fuel rod storage magazine, and a fuel rod verify and feed workstation and a magazine holder and indexing mechanism disposed between the carrousel and the magazine. The carrousel has a plurality of gondolas movable mounted thereon for stocking fuel rods of known enrichments. The magazine defines a matrix of elongated slots open at their forward ends for receiving fuel rods. The workstation defines a fuel rod feed path extending between the carrousel and the magazine and is adapted to receive successively one at a time along the feed path at its upstream end fuel rods from selected ones of the carrousel gondolas. The workstation includes an optical scanning and reading unit located along the feed path for verifying the identity of the fuel rods successively one at a time and a fuel rod feeding mechanism for successively feeding one at a time along the feed path the verified fuel rods into selected ones of the slots in the magazine. The magazine holder and indexing mechanism movably supports the magazine and is actuatable for moving the magazine along X-Y axes to successively align one at a time selected one of its slots with the feed path for loading in the magazine the successive fuel rods in a desired enrichment pattern.
摘要翻译：用于以期望的浓缩模式装载燃料棒的装置包括转盘，细长的燃料棒存放盒，燃料棒验证和进给工作站以及设置在转盘和料仓之间的料盒保持架和分度机构。转盘具有可移动地安装在其上的多个吊船，用于存放已知浓缩物的燃料棒。杂志定义了在其前端开口的细长槽的矩阵，用于接收燃料棒。工作站限定了在转盘和料仓之间延伸的燃料棒进给路径，并且适于在其上游端的燃料棒沿着进给路径一次接收一个选定的转盘吊架。该工作站包括一个光学扫描和读取单元，沿着馈送路径定位，以一次一个地一个地验证燃料棒的身份;以及一个燃料棒供给机构，用于连续地将馈送路径中的一个沿验证的燃料棒进入选定的杂志中的插槽之一。盒保持器和分度机构可移动地支撑盒体，并且可移动地支撑盒子并且可致动以沿着XY轴移动盒子，以使其中一个选定的一个狭缝中的一个与进给路径连续对准，用于以期望的富集模式装载连续的燃料棒。

6. 发明授权

US4978917A Method for nondestructive measurement of heat affected zone of identification code on nuclear fuel rod 失效
标题翻译：核燃料棒识别码热影响区非破坏性测量方法
公开(公告)号：US4978917A
公开(公告)日：1990-12-18
申请号：US389919
申请日：1989-08-04
申请人： Mark P. Goldenfield , David V. Lambert , Robert E. Shannon
发明人： Mark P. Goldenfield , David V. Lambert , Robert E. Shannon
IPC分类号： G01N27/02 , G21C3/02 , G21C17/06 , G21C17/07
CPC分类号： G21C17/07
摘要： In a method for nondestructive measurement of the heat affected zone of an identification code on a nuclear fuel rod tube, the change in impedance of an electromagnetic coil produced by a portion of the tube to be etched with a bar code is measured before and after the etching of the bar code is performed by use of laser power. The impedance change in the coil produced by the bar code-bearing tube portion is compared with the impedance change produced in the coil by the same tube portion before the bar code is generated thereon to determine whether a maximum allowed depth of the heat affected zone of the tube portion has been exceeded.
摘要翻译：在核燃料棒管上的识别码的热影响区的非破坏性测量方法中，测量由条形码的被蚀刻管的一部分产生的电磁线圈的阻抗变化，通过使用激光功率来进行条形码的蚀刻。由条形码管部分产生的线圈中的阻抗变化与在其上产生条形码之前通过相同的管部分在线圈中产生的阻抗变化进行比较，以确定是否允许热影响区域的最大允许深度已经超过了管部分。

7. 发明授权

US4822987A Method and apparatus for providing fuel rod identification to permit traceability during manufacture and use 失效
标题翻译：用于提供燃料棒识别以在制造和使用期间允许可追溯性的方法和装置
公开(公告)号：US4822987A
公开(公告)日：1989-04-18
申请号：US148326
申请日：1988-01-25
申请人： Mark P. Goldenfield , David V. Lambert , Hassan J. Ahmed
发明人： Mark P. Goldenfield , David V. Lambert , Hassan J. Ahmed
IPC分类号： G21C3/02 , G06K1/12 , G06K19/06 , G21C17/06 , G21C21/02
CPC分类号： G21C17/06 , G06K1/126
摘要： In a nuclear fuel rod identification system, indicia is provided on a nuclear fuel rod in two stages. In the first stage, by use of a laser beam a bar code is applied directly on the fuel rod cladding tube prior to loading it with nuclear fuel and attaching plugs to opposite ends thereof to provide an assembled fuel rod. In the second stage, after loading nuclear fuel into and attaching end plugs to opposite ends of the fuel rod cladding tube with the applied bar code to provide an assembled fuel rod, by use of a laser beam, identification and enrichment symbologies are applied respectively to the side and end of one of the end plugs of the assembled fuel rod.

8. 发明授权

US5251243A Automatic fuel assembly loader 失效
标题翻译：自动燃油组装装载机
公开(公告)号：US5251243A
公开(公告)日：1993-10-05
申请号：US933274
申请日：1992-08-21
申请人： Theodore W. Nylund , Kendell L. McDill , David V. Lambert
发明人： Theodore W. Nylund , Kendell L. McDill , David V. Lambert
IPC分类号： G21C3/334 , G21C21/00
CPC分类号： G21C3/334 , G21Y2002/202 , G21Y2002/205 , G21Y2002/206 , G21Y2002/302 , G21Y2004/30 , G21Y2004/40 , G21Y2004/401 , Y02E30/40 , Y10T29/531
摘要： An automated fuel assembly loader, capable of patterned loading, moves nuclear fuel rods in a loading direction between a fuel rod skeleton defining an array of receptacles for the fuel rods, and a fuel rod magazine supplying or receiving the fuel rods. A table supports the fuel rod skeleton at a loading position. A movable carriage having a line of individual fuel rod engaging devices moves a subset of fuel rods along the line forward in the loading direction. The rods are selected via a pattern stored in a controller. Selection devices such as pneumatic clamps mechanically couple the selected engaging devices to the carriage for movement while others are left behind. A ball screw carriage drive arrangement moves the carriage parallel to the loading direction and a jack screw positioning drive displaces the carriage perpendicular to the line of fuel rods. A controller is coupled to the carriage drive and to the selection devices, and stores data defining a preset pattern of receptacles in the array, operating the selection devices for actuating a group of engaging devices corresponding to the pattern. The controller also controls displacement speed, permitting patterned loading of the skeleton, for example to obtain a particular pattern of fuel rod enrichments, the controller moving line by line through an array of fuel rod receptacles in the skeleton.

9. 发明授权

US4960984A Method and apparatus for reading lased bar codes on shiny-finished fuel rod cladding tubes 失效
标题翻译：在光亮成品燃料棒包层管上读取条形码的方法和装置
公开(公告)号：US4960984A
公开(公告)日：1990-10-02
申请号：US152288
申请日：1988-02-04
申请人： Mark P. Goldenfield , David V. Lambert
发明人： Mark P. Goldenfield , David V. Lambert
IPC分类号： G21C3/02 , G06K7/10 , G21C17/06
CPC分类号： G06K7/10742 , G06K7/10861
摘要： In a nuclear fuel rod identification system, a bar code etched directly on a surface of a nuclear fuel rod is read by first positioning the fuel rod such that its surface portion having the bar code etched directly thereon, such as by a laser, is disposed adjacent to a light diffuser surface and between such surface and a light reader. Next, a beam of laser light is directed on the bar code on fuel rod surface portion such that the light is reflected therefrom onto the light diffuser surface. Then, the light reflected from the bar code via the light diffuser surface is received and read by the light reader. The light diffuser surface is disposed at about thirty degrees relative to the path of the beam of light directed to the fuel surface portion such that only about twenty-five percent of the light is reflected by the diffuser surface back to the light reader.

10. 发明授权

US4894848A Automated nuclear fuel rod pattern loading system 失效
标题翻译：自动核燃料棒图案加载系统
公开(公告)号：US4894848A
公开(公告)日：1990-01-16
申请号：US247181
申请日：1988-09-21
申请人： David V. Lambert , Theodore W. Nylund , John W. Byers , Damon E. Haley, Jr. , Joseph V. Cioffi
发明人： David V. Lambert , Theodore W. Nylund , John W. Byers , Damon E. Haley, Jr. , Joseph V. Cioffi
IPC分类号： G21C21/00 , G21C3/334 , G21C21/02
CPC分类号： G21C3/334 , G21C21/02 , G21Y2002/205 , G21Y2002/206 , G21Y2002/302 , G21Y2004/30 , G21Y2004/401 , Y02E30/40 , Y10T29/531
摘要： Apparatus for loading fuel rods in a desired enrichment pattern includes a carrousel, an elongated fuel rod storage magazine, and a fuel rod verify and feed workstation and a magazine holder and indexing mechanism disposed between the carrousel and the magazine. The carrousel has a plurality of gondolas movable mounted thereon for stocking fuel rods of known enrichments. The magazine defines a matrix of elongated slots open at their forward ends for receiving fuel rods. The workstation defines a fuel rod feed path extending between the carrousel and the magazine and is adapted to receive successively one at a time along the feed path at its upstream end fuel rods from selected ones of the carrousel gondolas. The workstation includes an optical scanning and reading unit located along the feed path for verifying the identity of the fuel rods successively one at a time and a fuel rod feeding mechanism for successively feeding one at a time along the feed path the verified fuel rods into selected ones of the slots in the magazine. The magazine holder and indexing mechanism movably supports the magazine and is actuatable for moving the magazine along X-Y axes to successively align one at a time selected ones of its slots with the feed path for loading in the magazine the successive fuel rods in a desired enrichment pattern.

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