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

US4076586A Nuclear reactor of the pressurized water type 失效
标题翻译：加压水型核反应堆
公开(公告)号：US4076586A
公开(公告)日：1978-02-28
申请号：US725063
申请日：1976-09-21
申请人： Jean Bideau , Jacques Levy , Jean-Luc Viaud
发明人： Jean Bideau , Jacques Levy , Jean-Luc Viaud
IPC分类号： G21C3/33 , G21C3/36 , G21C5/06 , G21C3/30 , F16G11/00 , G21C3/06
CPC分类号： G21C5/06 , G21C3/33 , G21C3/36 , Y02E30/40 , Y10T403/217
摘要： In a pressurized water reactor, the pressure vessel contains a plurality of fuel wrappers of parallelepipedal section supported on a lower grid which carries projecting sleeves equal in number to the wrappers. Each sleeve penetrates into a bore of a wrapper base plate and has a higher coefficient of thermal expansion than the base plate so that its external diameter is smaller than that of the bore in the cold state and equal thereto at the operating temperature of the reactor. The bore is thus clamped against the sleeve as a result of thermal expansion, the fuel assemblies being secured within the wrappers by means of spring-type elastic devices.
摘要翻译：在加压水反应器中，压力容器包含多个支撑在下格栅上的平行六面体部分的燃料包装纸，该下格栅承载与包装件相同数量的突出套筒。每个套筒穿入包装底板的孔中并且具有比底板更高的热膨胀系数，使得其外径小于冷态中的孔的外径，并且在反应器的操作温度下等于其的直径。因此，由于热膨胀，孔被夹紧在套筒上，燃料组件通过弹簧式弹性装置固定在包装纸内。

2. 发明授权

US4292130A Remotely assemblable and disassemblable fuel assembly for nuclear reactors 失效
标题翻译：用于核反应堆的远程组装和拆卸燃料组件
公开(公告)号：US4292130A
公开(公告)日：1981-09-29
申请号：US18222
申请日：1979-03-07
申请人： Jean-Luc Viaud , Jacques Levy
发明人： Jean-Luc Viaud , Jacques Levy
IPC分类号： G21C21/00 , B25B13/48 , F16B39/10 , G21C3/30 , G21C3/334 , G21C19/32 , G21C19/33 , G21C19/20
CPC分类号： F16B39/103 , B25B13/48 , G21C19/32 , G21C3/30 , G21C3/334 , G21Y2002/303 , G21Y2004/301 , G21Y2004/501 , Y02E30/40 , Y10S294/906
摘要： Remotely assemblable and disassemblable fuel assembly comprising a mechanical structure constituted by an upper plate, a lower plate and a plurality of brace rods extending between the said plates, and a plurality of elongated fuel elements fixed to the brace rods by gratings, one of the ends of each brace rod being irremovably fixed in the upper plate, the other end of each brace rod being fixed to the lower plate by a system of remotely assemblable and disassemblable assemblies, wherein the said system of assemblies comprises a thread made at the end of each brace rod, a screwing member having a thread able to cooperate with the thread on the brace rod and a head having a plug hole and on its periphery at least one chamfer, as well as machining in the lower plate, constituted by a bore having a larger diameter portion issuing into the outer face of said plate, said larger diameter portion being surrounded by a flange shaped by cutting in the plate and which is separated from the remainder of the plate by an annular groove.Further features are an unscrewing device for the remote disassembly of a fuel assembly, a device for restoring the shape of a fuel assembly flange after said flange has been crimped and a device for crimping the flange of a fuel assembly.
摘要翻译：可远程组装和拆卸的燃料组件，包括由上板，下板和在所述板之间延伸的多个支撑杆构成的机械结构，以及通过光栅固定到支杆的多个细长燃料元件，其中一端每个支撑杆可拆卸地固定在上板中，每个支杆的另一端通过远程组装和可拆卸组件的系统固定到下板，其中所述组件系统包括在每个支撑杆的末端形成的螺纹支撑杆，具有能够与支撑杆上的螺纹配合的螺纹的螺纹构件和具有塞孔的头部，并且在其外周上具有至少一个倒角，以及在下板中的机械加工，该孔由具有较大的直径部分发出到所述板的外表面，所述较大直径的部分由通过在板中切割而成形的凸缘包围，并且与凸缘分离通过一个环形凹槽的板的内部。另外的特征是用于远程拆卸燃料组件的旋拧装置，用于在所述凸缘已经被压接之后恢复燃料组件凸缘的形状的装置和用于压接燃料组件的凸缘的装置。

3. 发明授权

US4139315A Bolted plate joint 失效
标题翻译：螺栓板接头
公开(公告)号：US4139315A
公开(公告)日：1979-02-13
申请号：US858343
申请日：1977-12-07
申请人： Jacques Levy , Jean-Luc Viaud
发明人： Jacques Levy , Jean-Luc Viaud
IPC分类号： F16B35/00 , F16B39/02 , F16B39/10 , G21C3/00 , G21C5/06 , F16B5/02
CPC分类号： G21C5/06 , F16B39/02 , F16B39/103 , F16B39/105 , Y02E30/40 , Y10S411/967 , Y10S411/969 , Y10T403/1666 , Y10T403/3906 , Y10T403/7123
摘要： In an assembly of two parts having flat assembly faces, the upper part has a bore provided with an ovalized orifice and the lower part has an internally-threaded bore, the two bores being coaxial when the parts are in the assembly position. A first connecting member has a threaded end in cooperating relation with the internally-threaded bore and a second connecting member has a portion in contact with one face of the upper part. One member has an ovalized portion which cooperates with the ovalized orifice and has a deformable portion which cooperates with the other member after crimping in order to secure the two members at least against rotational motion.
摘要翻译：在具有平坦组装面的两个部件的组件中，上部具有设置有椭圆形孔口的孔，并且下部具有内螺纹孔，当部件处于组装位置时，两个孔同轴。第一连接构件具有与内螺纹孔配合的螺纹端，第二连接构件具有与上部的一个面接触的部分。一个构件具有与椭圆形孔口配合的椭圆形部分，并且具有可变形部分，该变形部分在压接之后与另一个构件协作，以便至少抵抗旋转运动来固定两个构件。

4. 发明申请

US20190136622A1 ARRANGEMENT INTRODUCED IN A DEVICE HAVING A HOOK FOR ANCHORING A LADDER TO CABLES 审中-公开
公开(公告)号：US20190136622A1
公开(公告)日：2019-05-09
申请号：US16301724
申请日：2017-07-07
申请人： Jacques Levy
发明人： Jacques Levy
IPC分类号： E06C7/18 , E06C7/48
摘要： The present patent application belongs to the field of workplace safety equipment and proposes an improvement to a device provided with a hook for anchoring a ladder to cables. The ladder is formed by a main structure (1) having in the center thereof an articulated hook (2). The main structure (1) comprises an extensible shaft in the upper portion thereof, allowing it to be coupled between two steps of a service ladder. In order to overcome drawbacks, a rope holder (8) has been developed, which is arranged in the lower portion of the main structure and locks the rope tying the hook (2), preventing the hook (2) from turning upside down or from opening. The rope holder also has two lateral toroidal locks (18) coupled to the step (20) of the ladder, each on one side of the main structure (1), preventing the main structure from shifting

5. 发明授权

US4269558A Apparatus for introducing a fuel element into a fuel assembly of a nuclear reactor 失效
标题翻译：用于将燃料元件引入核反应堆的燃料组件的装置
公开(公告)号：US4269558A
公开(公告)日：1981-05-26
申请号：US62011
申请日：1979-07-30
申请人： Louis Coppa , Jacques Levy
发明人： Louis Coppa , Jacques Levy
IPC分类号： G21C19/33 , G21C19/105 , G21C19/00
CPC分类号： G21C19/105 , Y10S294/906
摘要： Apparatus for introducing a fuel element into a fuel assembly is constituted by a plurality of vertical fuel elements and a structure for fixing said fuel elements, whereby the fuel elements have a positioning given by the fuel assembly and has an introduction plate fixed to the upper face of the fuel assembly. The plate has a plurality of orifices for the passage of a fuel element, the orifices positioning the fuel elements in the fuel assembly. A tool grips a fuel element for introduction thereof into a fuel assembly. Lifting means moves the tool in horizontal displacements between a storage rack for the fuel elements and one of the orifices of the introduction plate.
摘要翻译：用于将燃料元件引入燃料组件的装置由多个垂直燃料元件和用于固定所述燃料元件的结构构成，由此燃料元件具有由燃料组件给出的定位，并且具有固定到上表面的导入板的燃料组件。板具有用于燃料元件通过的多个孔，该孔将燃料元件定位在燃料组件中。工具夹持燃料元件以将其引入燃料组件。提升装置使工具在用于燃料元件的储存架和导入板的一个孔之间的水平位移中移动。

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