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71. 发明授权

US4298495A Processes for reducing the oxygen content of metal oxides 失效
标题翻译：减少金属氧化物氧含量的方法
公开(公告)号：US4298495A
公开(公告)日：1981-11-03
申请号：US865588
申请日：1977-12-29
申请人： Robin H. James , James A. Spooner
发明人： Robin H. James , James A. Spooner
IPC分类号： C01G43/01 , C01B13/14 , C01G56/00 , C04B35/64 , C22B5/12 , C22B60/02 , C22B60/04 , G21C3/00 , G21C3/62 , G21C21/00
CPC分类号： C22B5/12 , C04B35/64 , C22B60/0286 , C22B60/04 , G21C3/623 , Y02E30/38
摘要： In a process for reducing the oxygen content of metal oxide material, particularly a nuclear fuel material, the metal oxide material is contained in a plurality of carbon crucibles which are moved through a heated zone in end-to-end contact counter current to a stream of hydrogen-containing gas.
摘要翻译：在减少金属氧化物材料，特别是核燃料材料的氧含量的方法中，金属氧化物材料被包含在多个碳坩埚中，这些碳坩埚通过端对端接触反向电流的加热区域移动到流的含氢气体。

72. 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。

73. 发明授权

US4247495A Method of producing PuO.sub.2 /UO.sub.2 /-nuclear fuels 失效
标题翻译：生产PuO2 / UO2 /核燃料的方法
公开(公告)号：US4247495A
公开(公告)日：1981-01-27
申请号：US941453
申请日：1978-09-12
申请人： Karl Ennerst , Peter Funke , Rainer Lob
发明人： Karl Ennerst , Peter Funke , Rainer Lob
IPC分类号： G21C3/00 , G21C3/62 , G21C21/00
CPC分类号： G21C3/623 , Y02E30/38 , Y10S376/901
摘要： Production of UO.sub.2 nuclear fuel pellets containing PuO.sub.2 in set amounts, which pellets are soluble in nitric acid and suitable for reprocessing without the aid of a special additive. Uranium oxide powder is mixed with 15 to 50% by weight of the mixture of plutonium oxide powder; the mixture milled and pressed into pellets. The pellets are sintered, comminuted, pressed to form pellets and the pellets comminuted to free-flowing granules. The free-flowing granules are mixed with UO.sub.2 granules to obtain a desired UO.sub.2 /PuO.sub.2 ratio, and the mixture pressed into pellets and sintered to form UO.sub.2 nuclear fuel pellets containing PuO.sub.2 soluble in nitric acid.
摘要翻译：以规定的量生产含有PuO2的UO2核燃料颗粒，其中颗粒可溶于硝酸并适于不经特殊添加剂的再加工。氧化铀粉末与15-50重量％的钚氧化物粉末混合物混合; 将混合物研磨并压成颗粒。将颗粒烧结，粉碎，压制以形成颗粒，将颗粒粉碎成自由流动的颗粒。将自由流动的颗粒与UO2颗粒混合以获得所需的UO 2 / PuO 2比率，并将混合物压成颗粒并烧结以形成含有可溶于硝酸的PuO的UO2核燃料颗粒。

74. 发明授权

US4202849A Method for making nuclear fuel element 失效
标题翻译：制造核燃料元素的方法
公开(公告)号：US4202849A
公开(公告)日：1980-05-13
申请号：US832389
申请日：1977-09-12
申请人： Gary N. Miertschin , Kenneth F. Powell
发明人： Gary N. Miertschin , Kenneth F. Powell
IPC分类号： G21C3/28 , G21C21/02 , G21C21/00
CPC分类号： G21C21/02 , G21C3/28 , Y02E30/40
摘要： A nuclear fuel element and a method for making the fuel element are described. The fuel element comprises a graphite block in which elongated holes are filled with nuclear fuel. The nuclear fuel in each of the holes comprises a plurality of fuel rod segments which are, before firing, spaced from each other by a plurality of spacers. Upon firing, the spacer material gasifies, leaving unfilled gaps between the fuel rod segments.
摘要翻译：描述了核燃料元件和制造燃料元件的方法。燃料元件包括石墨块，其中细长的孔填充有核燃料。每个孔中的核燃料包括多个燃料棒段，其在燃烧之前通过多个间隔物彼此间隔开。在燃烧时，间隔物材料气化，在燃料棒段之间留下未填充的间隙。

75. 发明授权

US4117333A Nuclear fuel element leak detection system 失效
标题翻译：核燃料元件泄漏检测系统
公开(公告)号：US4117333A
公开(公告)日：1978-09-26
申请号：US792288
申请日：1977-04-29
申请人： Clarence D. John, Jr.
发明人： Clarence D. John, Jr.
IPC分类号： G01T1/00 , G01M3/20 , G21C17/06 , G21C17/07 , G21C21/00 , G01T1/185 , G01M3/04 , G01T3/00
CPC分类号： G21C17/07
摘要： A leak detection system integral with a wall of a building used to fabricate nuclear fuel elements for detecting radiation leakage from the nuclear fuel elements as the fuel elements exit the building. The leak detecting system comprises a shielded compartment constructed to withstand environmental hazards extending into a similarly constructed building and having sealed doors on both ends along with leak detecting apparatus connected to the compartment. The leak detecting system provides a system for removing a nuclear fuel element from its fabrication building while testing for radiation leaks in the fuel element.

76. 发明授权

US3996319A Process for the production of pressed block fuel elements of high power for gas cooled high temperature reactor 失效
标题翻译：用于生产用于气体冷却高温反应堆的大功率压块燃料元件的方法
公开(公告)号：US3996319A
公开(公告)日：1976-12-07
申请号：US486773
申请日：1974-07-09
申请人： Karl-Gerhard Hackstein , Milan Hrovat , Willi Wolff
发明人： Karl-Gerhard Hackstein , Milan Hrovat , Willi Wolff
IPC分类号： B30B11/04 , G21C3/28 , G21C21/02 , G21C21/00
CPC分类号： G21C3/28 , B30B11/04 , G21C21/02 , Y02E30/40 , Y10S376/903
摘要： Molded or pressed block fuel elements of high power for gas cooled high temperatures are produced by molding in steel tools using outer dies or bars and punches arranged to be freely moveable in the axial direction and moving said moveable dies or bars and punches in the molding process.
摘要翻译：用于气体冷却高温的高功率成型或压制块燃料元件通过使用外模或棒的钢工具进行成型而制造，冲头布置成在轴向方向上可自由移动并且在成型过程中移动所述可移动模具或棒和冲头。

77. 发明授权

US3982994A Grid lattice with horizontally-movable bar 失效
标题翻译：网格与水平移动的棒
公开(公告)号：US3982994A
公开(公告)日：1976-09-28
申请号：US552014
申请日：1975-02-24
申请人： Felix Stanley Jabsen
发明人： Felix Stanley Jabsen
IPC分类号： G21C21/00 , G21C3/334 , G21C3/356 , G21C3/34
CPC分类号： G21C3/3563 , G21C3/334 , Y02E30/40 , Y10T29/49826
摘要： A typical embodiment of the invention provides a means for selectively inserting and withdrawing one or more fuel rods from a fuel element cellular grid structure. The transverse stubs on one side of a long, thin bar are turned through 90.degree. to extend across the gap between mutually perpendicular grid structure plates. The extreme ends of these stubs engage the adjacent portions of the associated plates that form part of the grid cells. Pressing the stubs against the plate portions through the application of appropriate force in a longitudinal direction relative to the bar deflects the engaged plates through a sufficient distance to enable fuel rods to be inserted into, or withdrawn from, respective cells. After rod insertion, the force applied to the bar is released to enable the plates to relax and engage the fuel rods. The bars are rotated once more through 90.degree. and withdrawn from the grid structure. A similar procedure is employed to withdraw fuel rods from the grid structure.
摘要翻译：本发明的典型实施例提供了一种用于从燃料元件电池网格结构中选择性地插入和取出一个或多个燃料棒的装置。长条细长条的一侧上的横向短截线经过90°转动，延伸穿过相互垂直的格栅结构板之间的间隙。这些短截线的最末端与形成网格单元的一部分的相关联的板的相邻部分接合。通过在相对于杆的纵向方向施加适当的力来将短柱压靠在板部分上，使接合板偏转足够的距离，以使燃料棒能够插入或从相应的单元中取出。杆插入后，施加到杆的力被释放，以使板能够松弛并接合燃料棒。棒材再旋转90度并从网格结构中取出。采用类似的方法从电网结构中抽出燃料棒。

78. 发明授权

US3975471A Process for the production of fuel combined articles for addition in block shaped high temperature fuel elements 失效
标题翻译：用于生产用于在块状高温燃料元件中添加的燃料组合制品的方法
公开(公告)号：US3975471A
公开(公告)日：1976-08-17
申请号：US489436
申请日：1974-07-17
申请人： Milan Hrovat , Lothar Rachor
发明人： Milan Hrovat , Lothar Rachor
IPC分类号： G21C3/62 , G21C3/64 , G21C21/00
CPC分类号： G21C3/64 , Y02E30/38
摘要： There is provided a process for the production of fuel compacts consisting of an isotropic, radiation resistant graphite matrix of good heat conductivity having embedded therein coated fuel and/or fertile particles for insertion into high temperature fuel elements by providing the coated fuel and/or fertile particles with an overcoat of molding mixture consisting of graphite powder and a thermoplastic resin binder. The particles after the overcoating are provided with hardener and lubricant only on the surface and subsequently are compressed in a die heated to a constant temperature of about 150.degree.C., hardened and discharged therefrom as finished compacts.
摘要翻译：提供了一种用于生产由具有良好导热性的各向同性，耐辐射的石墨基质组成的燃料压块的方法，该石墨基质嵌入其中涂覆的燃料和/或通过提供涂覆的燃料和/或可育的具有由石墨粉末和热塑性树脂粘合剂组成的模制混合物外涂层的颗粒。在外涂层之后的颗粒仅在表面上提供硬化剂和润滑剂，随后在加热到约150℃的恒温的模具中被压缩，硬化并作为成品压块从其中排出。

79. 发明授权

US3949027A Manufacturing process for improved nuclear fuel tablets 失效
标题翻译：改进核燃料片的制造工艺
公开(公告)号：US3949027A
公开(公告)日：1976-04-06
申请号：US338850
申请日：1973-03-07
申请人： Alfred-Jean Flipot , Armand Smolders
发明人： Alfred-Jean Flipot , Armand Smolders
IPC分类号： B22F3/02 , B30B11/02 , B30B11/04 , B30B15/00 , B30B15/02 , G21C3/58 , G21C3/62 , G21C21/02 , G21C21/00
CPC分类号： G21C21/02 , B22F3/02 , B30B11/027 , B30B11/04 , B30B15/0011 , B30B15/022 , G21C3/58 , G21C3/623 , Y02E30/38
摘要： Process for manufacturing improved nuclear fuel pellets, including compacting ceramic powder in the Compaction chamber of a pelletizing machine with only the lower punch moving on compaction, wherein the walls of the compaction chamber are widened on at least part of their height in the direction of a diameter increase towards the die-bearing table.
摘要翻译：用于制造改进的核燃料颗粒的方法，包括在造粒机的压实室中压实陶瓷粉末，只有下冲头在压实时移动，其中压实室的壁在其高度的至少一部分上沿着直径增加朝向压模台。

80. 发明授权

US3944053A Conveyor systems 失效
标题翻译：输送系统
公开(公告)号：US3944053A
公开(公告)日：1976-03-16
申请号：US520869
申请日：1974-11-04
申请人： Michael Richard Hayes
发明人： Michael Richard Hayes
IPC分类号： B65G33/12 , B65G33/26 , G21C21/00 , G21C21/02 , B65G47/16 , B65G33/00
CPC分类号： B65G33/12 , G21C21/00
摘要： A conveyor system in which free flowing granules or particles are conveyed through a flexible tube having a helical channel defined on the internal surface of the tube by rotating the tube about its longitudinal axis.
摘要翻译：输送机系统，其中自由流动的颗粒或颗粒通过柔性管输送，所述柔性管具有通过围绕其纵向轴线旋转管而限定在管的内表面上的螺旋通道。

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