Process for producing a 1,4-dialkylbenzene
    124.
    发明授权
    Process for producing a 1,4-dialkylbenzene 失效
    1,4-二烷基苯的制备方法

    公开(公告)号:US4613717A

    公开(公告)日:1986-09-23

    申请号:US741629

    申请日:1985-06-04

    摘要: By the vapor phase reaction of benzene or a monoalkylbenzene with an alkylating agent in the presence of a specific catalyst obtained by subjecting a zeolite to a treatment with a gas containing a silicic acid ester and then a calcination in an oxygen-containing gas, said zeolite being 10 or more with respect to its molar ratio of SiO.sub.2 /X.sub.2 O.sub.3 in which X is at best one member selected from the group consisting of Al, B and Cr and having a constraint index within the range of 1 to 15, various useful 1,4-dialkylbenzenes can be produced not only in high yield but also in high selectivity.

    摘要翻译: 通过使苯或单烷基苯与烷基化剂在存在特定催化剂的情况下进行气相反应,所述催化剂通过使沸石进行含硅酸酯的气体处理,然后在含氧气体中进行煅烧而获得,所述沸石 相对于SiO 2 / X 2 O 3的摩尔比为10以上,其中,X为选自Al,B和Cr中的一种以上且约束指数为1〜15的范围,各种有用的1, 4-二烷基苯不仅可以高产率而且以高选择性产生。

    Flux for brazing aluminum and method of employing the same
    125.
    发明授权
    Flux for brazing aluminum and method of employing the same 失效
    钎焊铝焊剂及其应用方法

    公开(公告)号:US4475960A

    公开(公告)日:1984-10-09

    申请号:US494372

    申请日:1983-05-13

    CPC分类号: B23K35/3605

    摘要: In the brazing of aluminum a flux composed of a mixture of alkali metal fluoaluminates, with or without admixed AlF.sub.3, is employed. The flux has a composition of AlF.sub.3 about 53-62%, KF about 35-44%, and LiF about 2-7%, in terms of simple compounds. The flux has a liquidus temperature in the range of 490.degree.-560.degree. C. depending on its actual composition. The flux is of particular utility when brazing aluminum containing 0.4-2% magnesium and/or having a low solidus temperature and is preferably employed in an atmosphere of a dry, inert gas.

    摘要翻译: 在铝的钎焊中,使用由碱金属氟铝酸盐的混合物组成的助熔剂,具有或不具有混合的AlF 3。 助熔剂的组成为简单化合物,其组成为约53-62%,KF约35-44%,LiF约2-7%。 焊剂的液相线温度在490°-560℃的范围内,这取决于其实际组成。 当钎焊含有0.4-2%的镁和/或具有低固相线温度的铝时,焊剂特别有用,并且优选用于干燥惰性气体的气氛中。

    Operation control apparatus for AC motors
    126.
    发明授权
    Operation control apparatus for AC motors 失效
    交流电机运行控制装置

    公开(公告)号:US4353023A

    公开(公告)日:1982-10-05

    申请号:US176508

    申请日:1980-08-08

    IPC分类号: H02P3/22 H02P3/18 H02P23/06

    CPC分类号: H02P23/06 H02P3/18

    摘要: An apparatus for controlling the operation of an AC motor wherein braking energy at the time of a reduction in motor speed is disposed of by regenerative braking. The apparatus includes a rectifier connected to the AC power source, a smoothing capacitor, a variable-voltage variable-frequency inverter, and a regenerative thyristor bridge circuit connected between the inverter and the rectifier through switching transistors. There is also provided a firing control circuit for controlling the firing of each thyristor in the thyristor bridge circuit and for controlling driving of the switching transistors in synchronism with the firing of the thyristors, the braking energy being fed back to the AC power source when the AC motor undergoes a reduction in speed. The apparatus is small and can be constructed simply and inexpensively.

    摘要翻译: 一种用于控制AC电动机的操作的装置,其中通过再生制动来排除电动机速度降低时的制动能量。 该装置包括连接到AC电源的整流器,平滑电容器,可变电压可变频率逆变器和通过开关晶体管连接在逆变器和整流器之间的再生晶闸管桥接电路。 还提供了一种用于控制晶闸管桥接电路中的每个晶闸管的点火并用于与晶闸管的点火同步地控制开关晶体管的驱动的点火控制电路,当制动能量被反馈到AC电源时 交流电机的速度降低。 该设备小巧,可以简单且廉价地构造。

    Protective system for inverter circuit used in driving AC motors
    127.
    发明授权
    Protective system for inverter circuit used in driving AC motors 失效
    用于驱动交流电机的逆变电路保护系统

    公开(公告)号:US4291265A

    公开(公告)日:1981-09-22

    申请号:US89735

    申请日:1979-10-31

    摘要: The invention relates to a speed control system which includes an inverter circuit for converting a direct current into a polyphase alternating current in the form of a rectangular wave by the switching action of transistors, and an inverter drive circuit adapted to apply control signals to the inverter circuit to bring its output frequency to a desired value, an AC motor being rotated by the alternating current supplied by the inverter circuit. The system features current detection means for detecting the current that flows thrugh the input side of the inverter circuit, and a circuit adapted to terminate the operation of the inverter circuit when the value detected by the current means approaches a value large enough to damage the inverter circuit transistors as at such time that a large momentary current is subjected thereto. Also provided is protective circuitry with a current-limiting function adapted to suppress an increase in the output current of the inverter circuit and limit this current to a stable value without terminating the operation of the inverter circuit at such time that the current continuously flowing into the transistors of the inverter circuit is about to flow to its output side at an increased magnitude that could damage the transistors.

    摘要翻译: 本发明涉及一种速度控制系统,其包括用于通过晶体管的开关动作将直流转换为矩形波形式的多相交流电的逆变器电路,以及适用于向逆变器施加控制信号的逆变器驱动电路 电路使其输出频率达到期望值,交流电动机由逆变器电路提供的交流电转动。 该系统具有用于检测逆变器电路的输入侧流动的电流的电流检测装置,以及当由当前装置检测到的值接近到足以损坏逆变器的值时适于终止逆变器电路的操作的电路 在这样的时刻,大的瞬时电流被施加到电路晶体管。 还提供了具有限流功能的保护电路,其适于抑制逆变器电路的输出电流的增加,并将该电流限制在稳定的值,而不会在不停止逆变器电路的操作的情况下将电流连续流入 逆变器电路的晶体管将以可能损坏晶体管的增加的幅度流到其输出侧。

    Polyester resin composition
    128.
    发明授权
    Polyester resin composition 失效
    聚酯树脂组合物

    公开(公告)号:US4189549A

    公开(公告)日:1980-02-19

    申请号:US811327

    申请日:1977-06-29

    CPC分类号: C08L67/00 C08L67/04 C08L69/00

    摘要: A polyester resin composition having excellent mechanical properties, processability, transparency and surface glossiness of the formed product thereof, which comprises 1 to 99% by weight of an aromatic polyester produced by polycondensing para-hydroxybenzoic acid or a functional derivative thereof (I), 2,2-bis(4'-hydroxyphenyl)propane or a functional derivative thereof (II), and terephthalic acid or a functional derivative thereof (III) and/or isophthalic acid or a functional derivative thereof (IV) in a molar ratio of (I):(II)=1:100 to 100:1 and (II):(III) and/or (IV)=1:10 to 10:1 and 99 to 1% by weight of a polycarbonate or an aliphatic polyester.

    摘要翻译: 一种具有优异的机械性能,加工性,透明性和成型体的表面光泽度的聚酯树脂组合物,其包含1至99重量%的通过缩聚对羟基苯甲酸或其官能衍生物(I)制备的芳族聚酯,2 ,双(4'-羟基苯基)丙烷或其功能性衍生物(II)和对苯二甲酸或其功能性衍生物(III)和/或间苯二甲酸或其功能性衍生物(IV)的摩尔比为( I):( II)= 1:100〜100:1和(II):(III)和/或(IV)= 1:10〜10:1和99〜1重量%的聚碳酸酯或脂肪族聚酯 。

    LIQUID CRYSTAL DISPLAY DEVICE
    129.
    发明申请
    LIQUID CRYSTAL DISPLAY DEVICE 有权
    液晶显示装置

    公开(公告)号:US20100201908A1

    公开(公告)日:2010-08-12

    申请号:US12705546

    申请日:2010-02-12

    申请人: Hiroshi Ishida

    发明人: Hiroshi Ishida

    IPC分类号: G02F1/1333

    摘要: A liquid crystal display device includes a liquid crystal (LC) panel; front and rear frames sandwiching therebetween the LC panel; a latch structure engaging together the LC panel and one of the front and rear frames. The latch structure includes a convex portion formed on one of the LC panel and the one of the front and rear panels and a concave portion formed on the other of the LC panel and the one of the front and rear frames to receive therein the convex portion, whereby the latch structure allows and restricts movement of the LC panel with respect to the one of the front and rear frames in a first direction normal to the LC panel and in a second direction parallel to the LC panel, respectively.

    摘要翻译: 液晶显示装置包括液晶(LC)面板; 前后框架夹在它们之间的LC面板; 闩锁结构,其将LC面板与前框架和后框架中的一个接合。 闩锁结构包括形成在LC面板和前面板和后面板中的一个上的凸部和形成在另一个LC面板上的凹部和前框架和后框架中的一个,以在其中容纳凸部 由此闩锁结构允许和限制LC面板相对于前框架和后框架中的一个在垂直于LC面板的第一方向上和在平行于LC面板的第二方向上的移动。

    ACCESS GATEWAY APPARATUS, BASE STATION APPARATUS, COMMUNICATION CONTROL SYSTEM AND COMMUNICATION CONTROL METHOD
    130.
    发明申请
    ACCESS GATEWAY APPARATUS, BASE STATION APPARATUS, COMMUNICATION CONTROL SYSTEM AND COMMUNICATION CONTROL METHOD 有权
    访问网关设备,基站设备,通信控制系统和通信控制方法

    公开(公告)号:US20090257375A1

    公开(公告)日:2009-10-15

    申请号:US12376956

    申请日:2006-09-13

    申请人: Hiroshi Ishida

    发明人: Hiroshi Ishida

    摘要: A communication control system capable of reducing the traffic amount, CPU's processing load and channel bands related to a location registering process. In this system, a paging part (303) of a base station apparatus (300) receives a call request message transmitted from an access gateway apparatus (200) and addressed to a wireless terminal apparatus, and generates a call response message indicative of accommodating the wireless terminal apparatus. An MIP location registering part (304) registers an IP address established at the transmitting source of the call request message, and generates a location registration request message that requests a registration of an IP address established at the local base station. A packet combining part (305) generates and transmits a combined packet, which is obtained by combining the call request message with the location registration request message, to the access gateway apparatus (200).

    摘要翻译: 一种通信控制系统,能够减少与位置登记过程有关的通信量,CPU的处理负载和信道频带。 在该系统中,基站装置(300)的寻呼部(303)接收从接入网关装置(200)发送的寻址到无线终端装置的呼叫请求消息,并生成表示容纳 无线终端设备。 MIP位置注册部分(304)登记在呼叫请求消息的发送源建立的IP地址,并生成请求在本地基站建立的IP地址的注册的位置注册请求消息。 分组组合部分(305)生成并发送通过将呼叫请求消息与位置登记请求消息组合而获得的组合分组到接入网关装置(200)。