Process for the preparation of p-benzoquinone
    1.
    发明授权
    Process for the preparation of p-benzoquinone 失效
    制备对苯醌的方法

    公开(公告)号:US4973720A

    公开(公告)日:1990-11-27

    申请号:US253056

    申请日:1988-10-04

    CPC分类号: C07C46/06

    摘要: There is provided a process of producing p-benzoquinone, wherein hydroquinone and hydrogen peroxide are reacted in water, an aqueous inorganic acid solution, an inert organic polar solvent or a mixture of water with an inert organic polar solvent in the presence of a catalyst selected from the group consisting of iodine, hydrogen iodide, and iodine compounds of metals.According to the process, p-benzoquinone can be obtained from hydroquinone with the yield and the quality of the p-benzoquinone being high without requiring any special facilities, equipments and operations.

    摘要翻译: 提供了一种生产对苯醌的方法,其中氢醌和过氧化氢在水中,无机酸水溶液,惰性有机极性溶剂或水与惰性有机极性溶剂的混合物在选择的催化剂存在下反应 由碘,碘化氢和金属碘化合物组成。 根据该方法,对苯醌可以由氢醌获得,对苯醌的产率和质量高,无需任何特殊设备,设备和操作。

    Sim card mounting structure of mobile phone
    2.
    发明授权
    Sim card mounting structure of mobile phone 失效
    手机SIM卡安装结构

    公开(公告)号:US06892078B2

    公开(公告)日:2005-05-10

    申请号:US10040095

    申请日:2001-12-31

    摘要: A SIM card mounting structure of a mobile phone includes a SIM card receiving recess 5 provided in a rear surface portion of a front side casing of the mobile phone for fittingly receiving a SIM card 1 therein, a pressing portion 3 formed of an elastic material and having one end integrally formed with the rear surface portion of the front side casing and the other end positioned over the SIM card receiving recess to elastically press the SIM card 1 and electrode terminals 2 for connecting electrodes of the SIM card 1 to a battery. The electrode terminals 2 are formed of an elastic material and arranged on a bottom of the recess 5 in an opposing relation to electrodes of the SIM card 1. The one end of the pressing portion is formed integrally on an end portion of the SIM card receiving recess 5 in a longitudinal direction of the mobile phone such that the pressing portion functions as a longitudinal leaf spring. The pressing portion 3 has a notch 4 for setting elasticity of the pressing portion appropriately and facilitating a handling operation of a SIM card.

    摘要翻译: 移动电话的SIM卡安装结构包括设置在移动电话的前侧壳体的后表面部分中的SIM卡接收凹部5,用于在其中装配SIM卡1,由弹性材料形成的按压部分3和 其一端与前侧壳体的后表面一体形成,另一端位于SIM卡容纳凹部上方,以将SIM卡1和用于将SIM卡1的电极连接的电极端子2弹性地按压到电池。 电极端子2由弹性材料形成,并以与SIM卡1的电极相对的方式配置在凹部5的底部。按压部的一端一体形成在SIM卡的接收端部 凹部5沿着移动电话的纵向方向,使得按压部分用作纵向板簧。 按压部分3具有用于适当地设置按压部分的弹性的凹口4,并且便于SIM卡的操作操作。

    Structure for supporting antenna
    3.
    发明授权
    Structure for supporting antenna 失效
    天线支撑结构

    公开(公告)号:US06707430B2

    公开(公告)日:2004-03-16

    申请号:US10091469

    申请日:2002-03-07

    IPC分类号: H01Q124

    CPC分类号: H01Q1/1207 H01Q1/242

    摘要: A structure for supporting an antenna is composed of an antenna-supporting member which is formed under a radiator and shaped into a cylinder, an antenna-inserting portion which includes the first cylindrical space for accommodating the antenna-supporting member, locking claws which are connected with a lower end of the antenna-supporting member and interlocked with a lower edge of an inner wall of the first cylindrical space, and a rubber bush which includes a through hole, through which the antenna-supporting member passes, and is inserted between the radiator and the antenna-supporting member. An upper part of the antenna-inserting portion includes the second cylindrical space, which is concentric with the first cylindrical space and has an internal diameter larger than that of the first cylindrical space, and a lower part of the rubber bush fits into the second cylindrical space.

    摘要翻译: 用于支撑天线的结构由天线支撑构件构成,天线支撑构件形成在散热器下并成形为气缸,天线插入部分包括用于容纳天线支撑构件的第一圆柱形空间,连接的锁定爪 天线支撑构件的下端与第一圆柱形空间的内壁的下边缘互锁,以及橡胶衬套,其包括通孔,天线支撑构件穿过该通孔,并且插入在 散热器和天线支撑构件。 天线插入部分的上部包括与第一圆柱形空间同心并且具有大于第一圆柱形空间的内径的第二圆柱形空间,并且橡胶衬套的下部装配到第二圆柱形 空间。