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35 条记录 (耗时 0.025 秒)

    Process for the preparation of beta-methoxyacrylates
    31.
    发明授权
    Process for the preparation of beta-methoxyacrylates 失效
    制备β-甲氧基丙烯酸酯的方法

    公开(公告)号：US06225484B1

    公开(公告)日：2001-05-01

    申请号：US09373263

    申请日：1999-08-12

    申请人： Werner Simon ,  Thomas Petry

    发明人： Werner Simon ,  Thomas Petry

    IPC分类号： C07C5100

    CPC分类号： C07C67/31 ,  C07C67/343 ,  C07C69/734 ,  C07C69/732

    摘要： The invention relates to an improved process for the preparation of a compound of formula I wherein R1 represents an optionally substituted aryl group, R2 represents an optionally substituted alkyl group, and R3 and R4 each individually represent an alkyl group; which comprises heating a mixture of a compound of formula II an alcohol, a tri-alkoxymethane, an acid and, optionally, an inert diluent.

    摘要翻译： 本发明涉及一种制备式I化合物的改进方法，其中R1表示任选取代的芳基，R 2表示任选取代的烷基，R 3和R 4各自独立地表示烷基; 其包括加热式IIan醇化合物，三烷氧基甲烷，酸和任选的惰性稀释剂的混合物。

    Apparatus for melting a solder by vapor-phase treatment
    34.
    发明授权
    Apparatus for melting a solder by vapor-phase treatment 失效
    用于通过气相处理熔化焊料的装置

    公开(公告)号：US4759710A

    公开(公告)日：1988-07-26

    申请号：US23682

    申请日：1987-03-09

    申请人： Andreas Polaczy ,  Werner Simon

    发明人： Andreas Polaczy ,  Werner Simon

    IPC分类号： B23K1/015 ,  F27D19/00 ,  F26B19/00

    CPC分类号： B23K1/015

    摘要： Apparatus for melting by vapor-phase treatment a solder applied to an object. The liquid serving for vapor production, which is situated in a vessel, is heated by electrical heating means which are disposed exclusively outside of the vessel and are completely enveloped by a liquid heat-carrying medium. The vessel floor is provided with projections to increase the thermal transfer. A tubing coil is furthermore disposed in the heat-carrying medium for rapid cooling thereof.

    摘要翻译： 用于通过气相处理将应用于物体的焊料熔化的装置。 位于容器中的用于蒸气产生的液体被电加热装置加热，该加热装置专门设置在容器外部，并被液体载热介质完全包封。 容器底板设有突起，以增加热传递。 此外，管线圈还设置在载热介质中用于其快速冷却。

    Electrical test connector for simultaneous testing of a plurality of electrical components
    35.
    发明授权
    Electrical test connector for simultaneous testing of a plurality of electrical components 失效
    用于同时测试多个电气部件的电气测试连接器

    公开(公告)号：US4659986A

    公开(公告)日：1987-04-21

    申请号：US652745

    申请日：1984-09-19

    申请人： Werner Elster ,  Horst Koch ,  Gustav Ost ,  Werner Simon ,  Karl Deckelmann ,  Ino Taitl

    发明人： Werner Elster ,  Horst Koch ,  Gustav Ost ,  Werner Simon ,  Karl Deckelmann ,  Ino Taitl

    IPC分类号： G01R1/04 ,  G01R1/073 ,  G01R31/26 ,  G01R31/00

    CPC分类号： G01R1/073 ,  G01R1/0425 ,  G01R31/2642

    摘要： To permit testing of electrical connectors mounted on a strip, a pair of jaws, similarly to substantially transversely extended clothespin jaws, are provided, the inside surface of one (A) of the jaws (A, B) carrying a conductive strip (4) adapted to be engaged by one terminal of elements to be tested, the other terminal of the test elements being connected to a test track (7), for example applied over the conductive strip with an intervening insulating layer; (20) individual components (2) can be tested by foreshortening one terminal pin (5b) of the components and extending electrically conductive fingers, preferably of resistance material (6) for spring-clip engagement (8) with the foreshortened pins. The conductive strip (4) and the track (7) are brought out to external accessible terminal connectors (9). Alternatively, the test track is applied to a support strip (1) on which the elements (2) are located.

    摘要翻译： 为了允许安装在条带上的电连接器的测试，提供类似于基本上横向延伸的晒衣夹爪的一对钳口，一个（A）钳口（A，B）的内表面承载导电条（4） 适于被测试元件的一个端子接合，测试元件的另一个端子连接到测试轨道（7），例如以中间绝缘层施加在导电条上; （20）单个部件（2）可以通过缩短部件的一个端子销（5b）来测试，并且延伸导电手指，优选地用电阻材料（6）弹簧夹接合（8）与缩短的销。 导电条（4）和轨道（7）被引出到外部可触及端子连接器（9）。 或者，测试轨道被施加到元件（2）所在的支撑条（1）上。