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    • 4. 发明授权
    • Method and device for erecting building structures such as bridges,
using pre-fabricated concrete beams
    • 使用预制混凝土梁架设建筑结构如桥梁的方法和装置
    • US4630798A
    • 1986-12-23
    • US667123
    • 1984-11-01
    • Eberhard Muller
    • Eberhard Muller
    • E01D21/00E01D21/06E01D21/02
    • E01D21/06E01D21/00E01D2101/28
    • Proposed is a method for the erection of structures, such as bridges, that display pre-fabricated concrete beams, according to which the individual pre-fabricated beams are produced, on the spot, on a feed rigging within the corresponding work area of the structure, in a heated and laterally tiltable form. After removal from the form, the thusly produced pre-fabricated beams are transferred sidewardly into their final position by means of gantry cranes. During concretizing of the individual pre-fabricated beams, flexure of the feed rigging carrying the form is equalized in continuous fashion, in correspondence with the progressing, concretizing process, by transfer pumping of ballast liquid. Correspondingly with progression of construction, the feed rigging displaying a freely suspended cantilever is transferred in progressive fashion onto support girders of the structure that have been prepared beforehand, just like the gantry cranes, which can be pretransported from the support girders supporting it to the next support girders. Also capable of being equalized are different inclinations of the support girders, such as curvatures in the ground plane of the structure, for example the access to bridges.
    • 提出了一种用于架设诸如桥梁的结构的方法,其显示预制混凝土梁,根据该方法,单个预制梁现场在结构的相应工作区域内的进给索具上产生 ,以加热和横向可倾斜的形式。 在从形式移除之后,由此产生的预制梁通过龙门起重机侧向转移到其最终位置。 在单独的预制梁的混凝土中,通过传送泵送压载液体,以连续的方式使输送索具的挠曲与进行的具体化过程相对应。 与施工进度相对应,显示自由悬臂悬臂的进料索具逐渐转移到预先准备的结构的支撑梁上,就像龙门式起重机一样,可以从支撑其的支撑梁预先传送到下一台 支撑梁。 还能够均衡的是支撑梁的不同倾斜度,例如结构的接地平面中的曲率,例如对桥梁的通路。
    • 8. 发明授权
    • Polymerization of chloroprene
    • 氯丁二烯的聚合
    • US4786698A
    • 1988-11-22
    • US132975
    • 1987-12-15
    • Rudiger MuschEberhard MullerPeter WendlingWolfgang KonterGerhard Hohmann
    • Rudiger MuschEberhard MullerPeter WendlingWolfgang KonterGerhard Hohmann
    • C08F2/22C08F2/24C08F2/26C08F2/38C08F4/30C08F4/40C08F36/18
    • C08F36/18
    • Gel-free polychloroprene is obtained, at high monomer conversions, using a polymerization initiator comprising sodium dithionite or a mixture of sodium dithionite with formamidinesulphinic acid or with potassium peroxydisulphate or with formamidinesulphinic acid and potassium peroxodisulphate or with potassium peroxodisulphate and sodium anthraquinon-.beta.-sulphonate or with formamidinesulphinic acid and potassium peroxodisulphate and sodium anthraquinone-.beta.-sulphonate, and in the presence of oxygen and a chain transfer agent when 30 to 90% of the initiator is present at the commencement of polymerization and the remainder is added in portions during the polymerization, only further sodium dithionite being added at a conversion >60% in the case of an initiator combination, and when 20 to 80% by weight of the total amount of chain transfer agents is present before or at the commencement of polymerization and the remaining amount is added in one or more parts at monomer conversions of greater than 20%.
    • 使用包含连二亚硫酸钠或连二亚硫酸钠与甲酰胺亚磺酸钠或与过氧二硫酸钾或与甲脒亚磺酸和过氧二硫酸钾或与过氧二硫酸钾和蒽醌-β-磺酸钠的混合物的聚合引发剂,以高单体转化率获得无凝胶的聚氯丁二烯 或与甲酰胺亚磺酸和过二硫酸钾和蒽醌-β-磺酸钠反应,并且在氧和链转移剂存在下,当聚合开始时存在30至90%的引发剂,其余部分在 在引发剂组合的情况下,只有进一步的连二亚硫酸钠以60%的转化率加入,并且当在聚合开始之前或在聚合开始时存在20至80重量%的链转移剂的总量 在单体转化时,一个或多个部分加入量 大于20%。