Process for electrolytic dimerization of N-substituted pyridinium salt
    1.
    发明授权
    Process for electrolytic dimerization of N-substituted pyridinium salt 失效
    N-取代吡啶盐的电解二聚方法

    公开(公告)号:US4176020A

    公开(公告)日:1979-11-27

    申请号:US887131

    申请日:1978-03-16

    IPC分类号: C07D211/70 C25B3/10

    CPC分类号: C07D211/70 C25B3/105

    摘要: A novel process for the preparation of an N,N'-disubstituted tetrahydro-4,4'-bipyridyl by electrolytic dimerization of the corresponding N-substituted pyridinium salt, characterized in that, using a system including an electrolytic cell having at least one diaphragm and an extractor disposed outside the electrolytic cell, the electrolytic dimerization is carried out while an aqueous catholyte containing the corresponding N-substituted pyridinium salt is circulated between the electrolytic cell and the extractor in which the product is extracted into an extraction solvent, followed by separation of the aqueous phase which alone is recycled into the electrolytic cell. According to the process of the present invention, the electrolytic dimerization can be continued stably for a long time, a high current efficiency can be attained and the desired product can be obtained in high yield.

    摘要翻译: 通过相应的N-取代的吡啶鎓盐的电解二聚制备N,N'-二取代的四氢-4,4'-联吡啶的新方法,其特征在于,使用包括具有至少一个隔膜的电解池的系统 以及设置在电解槽的外部的提取器,在含有相应的N-取代的吡啶盐的含水阴极电解液在电解槽和萃取器之间循环的电解二聚反应,其中产物被萃取到提取溶剂中,然后分离 的单独的水相再循环到电解槽中。 根据本发明的方法,可以长时间稳定地继续进行电解二聚,可以获得高的电流效率,可以高产率获得所需的产物。

    Process for preparation of N,N'-disubstituted-4,4'-bipyridylium salt
    2.
    发明授权
    Process for preparation of N,N'-disubstituted-4,4'-bipyridylium salt 失效
    制备N,N {40-二取代-4,4(40-联吡啶鎓盐)的方法

    公开(公告)号:US4151165A

    公开(公告)日:1979-04-24

    申请号:US889408

    申请日:1978-03-23

    IPC分类号: C07D211/68 C07D213/22

    CPC分类号: C07D213/22

    摘要: A novel process for the preparation of an N,N'-disubstitued-4,4'-bipyridylium salt, characterized in that an N,N'-disubstitued tetrahydro-4,4'-bipyridyl corresponding to the desired salt is treated with at least one aromatic nitro compound in the presence of water. The process of the present invention is more advantageously effected further in the presence of a water-immiscible organic solvent. According to the present invention, the desired product can be obtained with high purity and in high yield.

    摘要翻译: 一种用于制备N,N'-二取代-4,4'-联吡啶鎓盐的新方法,其特征在于对应于所需盐的N,N'-二取代四氢-4,4'-联吡啶用 在水存在下至少一种芳族硝基化合物。 在与水不混溶的有机溶剂的存在下进一步有利地进行本发明的方法。 根据本发明,可以以高纯度和高产率获得所需的产物。

    Tunnel erase magnetic head assembly
    3.
    发明授权
    Tunnel erase magnetic head assembly 失效
    隧道擦除磁头组件

    公开(公告)号:US4691260A

    公开(公告)日:1987-09-01

    申请号:US631318

    申请日:1984-07-16

    摘要: A magnetic head assembly comprises a recording-reproducing head and erasing heads placed at both sides of said recording-reproducing head and the magnetic field strength of the erasing gap of one of the erasing heads which move adjacent data produced by a recording-reproducing gap is made different from that of the erasing gap of the other erasing gap to control a data area to be erased.

    摘要翻译: 磁头组件包括放置在所述记录再现头的两侧的记录再现头和擦除头,并且移动由记录 - 再现间隙产生的相邻数据的擦除头之一的擦除间隙的磁场强度是 与另一个擦除间隙的擦除间隙不同,以控制要擦除的数据区域。

    Capacitor connecting structure and capacitor
    4.
    发明授权
    Capacitor connecting structure and capacitor 失效
    电容器连接结构和电容器

    公开(公告)号:US5846098A

    公开(公告)日:1998-12-08

    申请号:US689081

    申请日:1996-07-30

    CPC分类号: H01R4/2433 H01R13/6625

    摘要: The disclosed capacitor connecting structure can connect two wires to a capacitor simply, while reducing the numbers of parts and connecting steps required. The capacitor connecting structure comprises: a capacitor (27; 85; 141) having two electrodes on both sides thereof; two junction terminals (41; 95, 91; 149) each formed with a pressure-connecting terminal portion (31; 107; 151) pressure-connected to a wire, and an elastic terminal portion (37; 97; 153) electrically connected to an electrode of the capacitor; and an insulating material cover (29; 87; 143) for covering the capacitor and the two junction terminals, respectively. The two electrodes of the capacitor can be connected electrically to the two wires via the two junction terminals, respectively, by pressure-connecting the wire to the pressure-connecting terminal portion of the junction terminal, respectively.

    摘要翻译: 所公开的电容器连接结构可以简单地将两根导线连接到电容器,同时减少部件数量和所需的连接步骤。 电容器连接结构包括:在其两侧具有两个电极的电容器(27; 85; 141) 每个形成有压力连接到导线的压力连接端子部分(31; 107; 151)的两个接线端子(41; 95,91; 149)和一个弹性端子部分(37; 97; 153) 电容器的电极; 以及用于分别覆盖电容器和两个接线端子的绝缘材料盖(29; 87; 143)。 电容器的两个电极可以分别通过两个接线端子与两条电线电连接,方法是将电线分别连接到接线端子的压接端子部分。

    Air exhausting cap structure
    7.
    发明授权
    Air exhausting cap structure 失效
    排气盖结构

    公开(公告)号:US5649859A

    公开(公告)日:1997-07-22

    申请号:US578956

    申请日:1995-12-27

    申请人: Masaaki Shiga

    发明人: Masaaki Shiga

    CPC分类号: H02G3/088 F24F7/02

    摘要: A circumference wall is provided on a slant surface of a case. A cylindrical portion with a through hole for communicating the inside of the case to the outside is protruded inside the circumference wall. A shaft loosely fitted into the through hole is vertically provided from a reversely recessed cap. A falling out preventing portion for preventing the shaft from falling out the through hole is formed at the lower end of the shaft while a gap to the rear surface of the upper plate is secured. A communicating hole communicating with the gap between the shaft and the through hole when the falling out preventing portion is closely brought into contact with the rear surface of the upper plate, is provided on the falling out preventing portion. An outer circumference wall covered on the outside of the circumference wall and disposed to form a gap to the slant surface is vertically provided on the cap.

    摘要翻译: 圆周壁设置在壳体的倾斜表面上。 具有用于将壳体的内部连通到外部的通孔的圆筒部分在周壁内部突出。 松动地装配到通孔中的轴从倒置的帽垂直地设置。 在轴的下端形成防止轴脱出通孔的防脱部,同时确保了与上板的后表面的间隙。 在脱落防止部设置有防止脱落部与上板的后表面接触的与轴与通孔之间的间隙连通的连通孔。 在盖上垂直设置有被覆盖在周壁的外侧并被设置成与倾斜表面形成间隙的外周壁。