专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08306950B2 Managing data access requests after persistent snapshots 失效
标题翻译：持续快照后管理数据访问请求
公开(公告)号：US08306950B2
公开(公告)日：2012-11-06
申请号：US12868877
申请日：2010-08-26
申请人： Janet E. Adkins , Joon Chang , Robert K. Gjertsen , Ninad S. Palsule
发明人： Janet E. Adkins , Joon Chang , Robert K. Gjertsen , Ninad S. Palsule
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30371
摘要： A client node on which a file system is mounted can be configured to efficiently handle content access requests after a snapshot is created. The client node can maintain generation numbers at a data block, a file, and a fileset level to determine whether a data block is part of a snapshot generation and consequently whether the data block is writable in a current generation. Data block mappings and write access permissions associated with the data blocks need not be revoked at the client node prior to creating the snapshot. Cached data block mappings can be accessed to identify data blocks for servicing a read request. The data block can be updated in place if the data block is not part of the snapshot generation. The write request can be serviced at a new data block if the data block is part of the snapshot generation.
摘要翻译：安装文件系统的客户端节点可以配置为在创建快照后高效地处理内容访问请求。客户端节点可以在数据块，文件和文件集级别上维护生成号，以确定数据块是否是快照生成的一部分，并且因此数据块是否在当前一代中是可写的。在创建快照之前，不需要在客户机节点撤消与数据块相关联的数据块映射和写访问权限。可以访问缓存数据块映射以识别用于服务读请求的数据块。如果数据块不是快照生成的一部分，则可以更新数据块。如果数据块是快照生成的一部分，则可以在新的数据块处理写入请求。

2. 发明授权

US5141711A Reconstitutable control assembly having removable control rods with detachable split upper end plugs 失效
标题翻译：可组装的控制组件具有可拆卸的分离上端塞的可拆卸的控制杆
公开(公告)号：US5141711A
公开(公告)日：1992-08-25
申请号：US732373
申请日：1991-07-18
申请人： Robert K. Gjertsen , Ronald P. Knott , James A. Sparrow
发明人： Robert K. Gjertsen , Ronald P. Knott , James A. Sparrow
IPC分类号： G21C3/326 , G21C7/10 , G21C7/117
CPC分类号： G21C7/117 , G21Y2002/101 , G21Y2002/402 , G21Y2004/30 , G21Y2004/301 , G21Y2004/50 , Y02E30/39
摘要： A reconstitutable control assembly has a spider structure which supports control rods by detachable attachment joints. Each attachment joint includes a hollow connecting finger on the spider structure and an elongated detachable split upper end plug on each control rod. The split upper end plug includes a pair of separate upper and lower plug portions. The upper plug portion has upper, middle and lower sections, whereas the lower plug portion has upper, middle and lower segments. The upper section of the upper plug portion is rigidly attached to the connecting finger on the spider structure, whereas the lower segment of the lower plug portion is rigidly connected to the control rod. Also, the lower section of the upper plug portion and the middle segment of the lower plug portion have complementary threads defined thereon for rigidly threadably attaching the upper and lower plug portions to one another. Two embodiments of locking features can be used in conjunction with the upper and lower plug portions for locking them together so as to resist their unthreading from one another.
摘要翻译：可重构的控制组件具有通过可拆卸的连接接头支撑控制杆的蜘蛛结构。每个附接接头包括在蜘蛛结构上的空心连接指状物和每个控制杆上的细长可拆卸分离上端塞。分开的上端塞包括一对分离的上部和下部插塞部分。上塞部分具有上部，中部和下部，而下部塞部具有上部，中部和下部。上塞部分的上部刚性地附接到蜘蛛结构上的连接指状物，而下塞部分的下部段刚性地连接到控制棒上。此外，上塞部分的下部和下塞部分的中段具有限定在其上的互补螺纹，用于将上部和下部塞部分彼此刚性地螺纹连接。锁定特征的两个实施例可以与上部和下部塞子部分结合使用，以将它们锁定在一起，以抵抗它们彼此的相互脱开。

3. 发明授权

US4820475A Burnable absorber rod push out attachment joint 失效
标题翻译：可燃吸收棒推出附件接头
公开(公告)号：US4820475A
公开(公告)日：1989-04-11
申请号：US89384
申请日：1987-08-25
申请人： Joseph B. Mayers , Robert K. Gjertsen , John F. Wilson
发明人： Joseph B. Mayers , Robert K. Gjertsen , John F. Wilson
IPC分类号： G21C7/04 , G21C7/117
CPC分类号： G21C7/117 , G21C7/04 , G21Y2002/402 , G21Y2004/301 , Y02E30/39 , Y10T29/4994 , Y10T403/49
摘要： A burnable absorber cluster assembly includes a support plate, a plurality of burnable absorber rods, and an improved attachment joint for detachably connecting an upper end of each of the absorber rods to the support plate. The attachment joint includes a plug insert defined on the end of each of the rods, a hollow annular wall extending outwardly from each plug insert, holes defined through the support plate for receiving the plug inserts, and recesses formed in the support plate and connected with the holes therein. Each recess is conical-shaped and extends in flared fashion outwardly from one hole to a maximum diameter greater than the diameter of the hole. The annular wall on each plug insert is deformed into conformity with the shape of one of the recesses for providing an interengaging connection between the insert plug and the support plate in which the plug insert is disposed within the support plate hole. The annular wall is also redeformable upon application of a predetermined axially-directed force on the plug insert so as to remove the plug insert from the support plate hole and thereby detach the rod from the support plate. Also, each recess and annular wall have respective interengaging eccentric portions which prevents the plug insert on each rod end from rotating in its corresponding hole.
摘要翻译：可燃性吸收体簇组件包括支撑板，多个可燃的吸收棒，以及用于将每个吸收棒的上端可拆卸地连接到支撑板的改进的附接接头。连接接头包括限定在每个杆的端部上的插塞插入件，从每个插头插入件向外延伸的中空环形壁，通过支撑板限定的用于接收插头插入件的孔，以及形成在支撑板中并与其中的孔。每个凹槽是圆锥形的并且以喇叭形的方式从一个孔向外延伸到大于孔的直径的最大直径。每个插头插入件上的环形壁变形成与其中一个凹槽的形状一致，用于在插入插头和支撑板之间提供相互接合的连接，其中插头插入件设置在支撑板孔内。环形壁也可以在对插头插入物施加预定的轴向力的同时被重新变形，从而将插头插入物从支撑板孔移除，从而将杆从支撑板上分离。此外，每个凹部和环形壁都具有相应的相互接合的偏心部分，其防止每个杆端上的插头插入件在其相应的孔中旋转。

4. 发明授权

US4820058A Control rod end plug with a stabilizing configuration 失效
标题翻译：控制杆端塞具有稳定配置
公开(公告)号：US4820058A
公开(公告)日：1989-04-11
申请号：US634729
申请日：1984-07-26
申请人： John F. Wilson , Samuel Cerni , Robert K. Gjertsen
发明人： John F. Wilson , Samuel Cerni , Robert K. Gjertsen
IPC分类号： G21C7/117 , G21C7/14 , G21C7/10
CPC分类号： G21C7/117 , G21Y2002/101 , G21Y2004/30 , G21Y2004/302 , Y02E30/39
摘要： A nuclear reactor includes a plurality of upstanding guide thimbles and a plurality of control rods received in the guide thimbles and supported for movement relative to the thimbles between inserted and withdrawn positions. The control rods each include a tubular cladding member and an end plug attached to a lower end of the member. The improvement relates to the end plug having a stabilizing configuration which reduces lateral vibratory motion and contact between the control rod and its respective guide thimble. The end plug has an asymmetrical shape which places its terminal tip end in a position offset to one side of the central axis of the control rod and its end plug. As a result of interaction of the asymmetrical plug tip with coolant flowing along the control rod, a lateral steady-state force is imparted to the end plug which maintains the control rod end plug pressed against the wall of tis respective guide thimble. Several different asymmetrical configurations can be employed on the end plug.
摘要翻译：核反应堆包括多个直立引导套管和多个控制杆，其容纳在引导套管中并被支撑以相对于插入位置和撤回位置之间的套管移动。控制杆各自包括管状包覆部件和附接到部件的下端的端塞。该改进涉及具有稳定构造的端塞，其减小横向振动运动和控制杆与其相应导向套筒之间的接触。端塞具有不对称的形状，其端头末端位于偏离控制棒的中心轴线的一侧及其端塞的位置。由于不对称塞头与与控制杆流动的冷却剂相互作用的结果，向端塞施加横向稳态力，从而将控制杆端塞压在相应导向套管的壁上。端塞可以采用几种不同的不对称配置。

5. 发明授权

US4798699A Wear sleeve for a control rod end plug 失效
标题翻译：用于控制杆端塞的套筒
公开(公告)号：US4798699A
公开(公告)日：1989-01-17
申请号：US634725
申请日：1984-07-26
申请人： Samuel Cerni , John F. Wilson , Robert K. Gjertsen
发明人： Samuel Cerni , John F. Wilson , Robert K. Gjertsen
IPC分类号： G21C7/10 , G21C7/117 , G21C7/14
CPC分类号： G21C7/117 , G21Y2002/101 , G21Y2004/30 , G21Y2004/302 , Y02E30/39
摘要： A nuclear reactor includes a plurality of upstanding guide thimbles and a plurality of control rods received in the guide thimbles and supported for movement relative to the thimbles between inserted and withdrawn positions. The control rods each include a tubular cladding member and an end plug attached to a lower end of the member. The improvement relates to an wear sleeve disposed on the end plug so as to provide a contact interface between the control rod and its respective guide thimble. The sleeve is composed of material similar to that of the guide thimble and attached to the end plug by an interlock connection. The interlock connection includes a circumferential groove formed in the end plug and a circumferential protuberance swaged or mechanically roll formed in the sleeve so as to extend into the end plug groove.
摘要翻译：核反应堆包括多个直立引导套管和多个控制杆，其容纳在引导套管中并被支撑以相对于插入位置和撤回位置之间的套管移动。控制杆各自包括管状包覆部件和附接到部件的下端的端塞。该改进涉及设置在端塞上的耐磨套筒，以便在控制杆和其各自的导向套管之间提供接触界面。套筒由与导向套管类似的材料组成，并通过互锁连接连接到端塞上。互锁连接包括形成在端塞中的周向槽和在套筒中形成的周向隆起的模锻或机械辊，以便延伸到端塞槽中。

6. 发明授权

US4678618A Individual source positioning mechanism for a nuclear reactor fuel assembly 失效
标题翻译：用于核反应堆燃料组件的单个源定位机构
公开(公告)号：US4678618A
公开(公告)日：1987-07-07
申请号：US642607
申请日：1984-08-20
申请人： John F. Wilson , Robert K. Gjertsen , Samuel Cerni
发明人： John F. Wilson , Robert K. Gjertsen , Samuel Cerni
IPC分类号： G21C7/34 , G21C3/33
CPC分类号： G21C3/331 , G21C3/33 , G21C3/3315 , G21Y2002/304 , G21Y2004/30 , Y02E30/40
摘要： A secondary source positioning mechanism for a fuel assembly in a nuclear reactor locates an individual one of the secondary sources in a respective guide thimble of the fuel assembly aligned with an opening defined through the upper core plate which overlies the fuel assembly. The positioning mechanism has a tapered locating boss which registers with a chamfer on the lower side of the core plate about one of its openings and a resilient holddown device which resiliently couples the upper end of a rod containing the secondary source to the locating boss in a manner which restrains the upper end of the rod in the lateral direction and positions the secondary source rod in the axial direction.
摘要翻译：用于核反应堆中的燃料组件的次级源定位机构将单独的一个次级源定位在燃料组件的相应导向套管中，该导向套管与通过覆盖燃料组件的上芯板限定的开口对准。定位机构具有锥形定位凸台，该凸台与其中一个开口的芯板的下侧上的倒角对准，以及弹性压紧装置，其将包含次级源的杆的上端弹性耦合到定位凸台限制杆的上端在横向方向上并且将次级源杆沿轴向定位的方式。

7. 发明授权

US4670213A Removable top nozzle subassembly for a reconstitutable nuclear fuel assembly 失效
标题翻译：用于可重构核燃料组件的可拆卸顶部喷嘴子组件
公开(公告)号：US4670213A
公开(公告)日：1987-06-02
申请号：US701049
申请日：1985-02-12
申请人： John F. Wilson , Robert K. Gjertsen
发明人： John F. Wilson , Robert K. Gjertsen
IPC分类号： G21C3/33 , G21C3/334 , G21C3/32
CPC分类号： G21C3/334 , Y02E30/40
摘要： An improved top nozzle has an enclosure with a lower adapter plate and an upstanding sidewall surrounding and attached to the periphery thereof and an upper hold-down plate spaced above the adapter plate for abutmnet with a lower side of an upper core plate by a plurality of coil springs disposed between the lower and upper plates. The lower adapted plate and upper hold-down plate have respective openings and passageways defined therethrough in a pattern which matches that of the upper ends of the guide thimbles of the fuel assembly to which the improved top nozzle is attached. The upper ends of the guide thimbles extend upwardly through the adapter plate which is stationarily mounted on the guide thimbles. Tubular sleeves disposed between the lower and upper plates are surrounded by respective coil springs. The lower ends of the sleeves are releasably threaded to the upper ends of the guide thimbles, while the upper ends of the sleeves extend into the passageways of the upper hold-down plate. Bosses are disposed above the hold-down plate and connected thereto such that respective bores through the bosses are aligned with passageways of the hold-down plate. The bosses extend into holes in the upper core plate for aligning the fuel assembly with the upper core plate and for receiving the upper ends of the guide thimbles as the fuel assembly vertically moves upwardly relative to the upper core plate. A plurality of lugs on the periphery of the upper hold-down plate are coupled to the sidewall of the enclosure for accommodating vertical movement of the fuel assembly relative to the upper core plate.
摘要翻译：改进的顶部喷嘴具有外壳，其具有下接合板和围绕并附接到其周边的直立侧壁，以及在适配器板上方间隔开的上压板，用于与上芯板的下侧通过多个螺旋弹簧设置在下板和上板之间。下适配板和上压板具有相应的开口和通道，该通道以与改进的顶部喷嘴所附接的燃料组件的引导套管的上端相匹配的图案形成。导向套管的上端向上延伸穿过固定安装在导向套管上的适配器板。设置在下板和上板之间的管状套管被相应的螺旋弹簧包围。套管的下端可释放地螺纹连接到导向套筒的上端，同时套筒的上端延伸到上压板的通道中。凸台设置在压紧板的上方并连接到其上，使得通过凸台的各个孔与压紧板的通道对齐。凸台延伸到上芯板中的孔中，用于使燃料组件与上芯板对准，并且当燃料组件相对于上芯板向上垂直移动时，用于接收导向套管的上端。上压板的周边上的多个凸耳联接到外壳的侧壁，用于容纳燃料组件相对于上芯板的垂直运动。

8. 发明授权

US4572816A Reconstituting a nuclear reactor fuel assembly 失效
标题翻译：重建核反应堆燃料组件
公开(公告)号：US4572816A
公开(公告)日：1986-02-25
申请号：US564056
申请日：1983-12-21
申请人： Robert K. Gjertsen , John F. Wilson , John M. Shallenberger
发明人： Robert K. Gjertsen , John F. Wilson , John M. Shallenberger
IPC分类号： G21C19/33 , G21C3/33 , G21C3/334
CPC分类号： G21C3/334 , Y02E30/40 , Y10T29/49725 , Y10T29/49726
摘要： A method of reconstituting a nuclear reactor fuel assembly having a top nozzle subassembly attached to the upper end of its control rod guide thimble wherein the subassembly includes an upper hold-down plate, a lower adapter plate, and a coils spring interposed between the two plates. A force is applied on the hold-down plate to compress the coil spring and transform the subassembly from its operation mode to a reconstitution mode. The wall of the thimble is severed just below a first attaching retainer mounted on the end of the thimble which defines the upward limit movement of the hold-down plate during the operation mode. Containing fingers are placed on the subassembly for removing it as a contained unit. The top nozzle subassembly or a new replacement subassembly is then replaced on the severed thimble in its reconstitution mode and a second attaching retainer is mounted on the upper end portion of the severed thimble in redefining the upward limit movement of the hold-down plate. The force is then released from the hold-down plate whereupon the top nozzle subassembly is transformed from its reconstitution mode to its operation mode.
摘要翻译：一种重组核反应堆燃料组件的方法，所述核反应堆燃料组件具有附接到其控制杆导向套管的上端的顶部喷嘴子组件，其中所述子组件包括上部压紧板，下部适配器板和插入在两个板之间的线圈弹簧。在压板上施加力以压缩螺旋弹簧并将子组件从其操作模式转换成重构模式。套筒的壁正好位于安装在套管端部的第一附接保持器的下方，该第一附接保持器限定了在操作模式期间压紧板的上限运动。包含的手指放置在子组件上，以将其作为包含的单元去除。然后在其重新组装模式下在切断的套管上更换顶部喷嘴子组件或新的更换子组件，并且在重新定义压紧板的向上限制运动中，将第二附接保持器安装在切断的套管的上端部分上。然后力从压紧板释放，因此顶部喷嘴子组件从其重构模式转换到其操作模式。

9. 发明授权

US4432934A Displacer rod for use in a mechanical spectral shift reactor 失效
标题翻译：用于机械光谱变换反应器的置换棒
公开(公告)号：US4432934A
公开(公告)日：1984-02-21
申请号：US217052
申请日：1980-12-16
申请人： Robert K. Gjertsen , John F. Wilson , Raymond A. George
发明人： Robert K. Gjertsen , John F. Wilson , Raymond A. George
IPC分类号： G21C7/27 , G21C7/117 , G21C7/26
CPC分类号： G21C7/117 , G21C7/26 , G21Y2002/201 , G21Y2004/10 , G21Y2004/30 , G21Y2004/40 , Y02E30/32 , Y02E30/39
摘要： A displacer rod for use in a mechanical spectral shift pressurized water nuclear reactor comprises a sectioned substantially hollow low neutron absorbing metal rod capable of displacing reactor coolant without absorbing a high amount of neutrons. The tubular sections can be made of stainless steel or Zircaloy tubing and may contain pellets for weighting the displacer rod.
摘要翻译：用于机械光谱移位加压水核反应堆的置换杆包括一个截断的基本中空的低中子吸收金属棒，能够移动反应堆冷却剂而不吸收大量的中子。管状部分可以由不锈钢或Zircaloy管制成，并且可以包含用于加重置换棒的颗粒。

10. 发明授权

US08743680B2 Hierarchical network failure handling in a clustered node environment 有权
标题翻译：群集节点环境中的分层网络故障处理
公开(公告)号：US08743680B2
公开(公告)日：2014-06-03
申请号：US13209104
申请日：2011-08-12
申请人： William B. Brown , David J. Craft , Robert K. Gjertsen
发明人： William B. Brown , David J. Craft , Robert K. Gjertsen
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26
CPC分类号： H04L41/0659
摘要： According to one aspect of the present disclosure, a method and technique for hierarchical network failure handling in a clustered node environment is disclosed. The method includes: detecting a network failure by a node in a cluster, the cluster having plural nodes arranged in a hierarchy, wherein the network failure is associated with a subordinate node in the hierarchy to the detecting node; communicating the network failure from the detecting node to a superior node in the hierarchy; determining whether the network failure affects nodes higher than the detecting node in the hierarchy; and responsive to determining that the network failure does not affect nodes higher than the detecting node in the hierarchy, the detecting node initiating a protocol to expel the subordinate node from the cluster.
摘要翻译：根据本公开的一个方面，公开了一种用于在集群节点环境中分级网络故障处理的方法和技术。该方法包括：通过集群中的节点检测网络故障，所述集群具有排列在层次结构中的多个节点，其中所述网络故障与所述层级中的下级节点与所述检测节点相关联; 将网络故障从检测节点传送到层次结构中的上级节点; 确定网络故障是否影响高于层次结构中的检测节点的节点; 并且响应于确定所述网络故障不影响所述层级中的所述检测节点以上的节点，所述检测节点发起将所述下级节点从所述群集排除的协议。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式