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    • 9. 发明授权
    • Hammer drill for performing rotary drilling or percussive drilling
    • 用于执行旋转钻孔或冲击钻孔的锤钻
    • US4434859A
    • 1984-03-06
    • US392121
    • 1982-06-25
    • Gerhard RumppDieter ScholzManfred Spieth
    • Gerhard RumppDieter ScholzManfred Spieth
    • B23B45/16B23Q3/12B25D17/08E02D7/02
    • B23Q3/12B25D17/088B25D2217/0049Y10T279/17076Y10T279/17752
    • A hammer drill for performing percussive drilling or rotary drilling includes a housing and a tool holder mounted on and axially displaceable relative to the housing, the tool holder contains a retainer sleeve mounting locking member for securing the shank of a tool in the holder. When the hammer drill is used only for rotary drilling, the retainer sleeve is displaced into contacting engagement with the housing for centering the tool holder. The tool holder includes stops for securing the locking members against axial displacement during rotary drilling. One stop is movable relative to the retainer sleeve and can be locked in position. Another stop forms part of the retainer sleeve. The stops combine with the closed ends of the recesses in the tool shank for holding the locking members against axial displacement.
    • 用于进行冲击钻孔或旋转钻孔的锤钻包括安装在壳体上并可相对于壳体轴向移位的壳体和工具夹具,工具夹具包括用于将工具的柄固定在保持器中的保持器套筒安装锁定构件。 当锤钻仅用于旋转钻孔时,保持器套筒被移位成与壳体接触接合,以使工具夹具居中。 工具架包括用于在旋转钻孔期间固定锁定构件以防止轴向位移的止动件。 一个止动件可相对于保持器套筒移动并且可以锁定就位。 另一个止挡形成保持套的一部分。 止动件与工具柄中的凹部的封闭端部结合,用于保持锁定构件抵抗轴向位移。
    • 10. 发明授权
    • Fluorinated nucleosides and process for treating retrovirus infections
therewith
    • 氟化核苷和用于治疗逆转录病毒感染的方法
    • US5153180A
    • 1992-10-06
    • US566486
    • 1990-08-13
    • Eckart MatthesChristine LehmannDieter ScholzMartin von Janta-LipinskiKlaus GaertnerPeter LangenHans-Alfred Rosenthal
    • Eckart MatthesChristine LehmannDieter ScholzMartin von Janta-LipinskiKlaus GaertnerPeter LangenHans-Alfred Rosenthal
    • C07H19/06C07H19/16
    • C07H19/06C07H19/16
    • A process for treating AIDS, which comprises administering to a patient in need therefor a pharmaceutical composition comprising a therapeutically effective amount of a compound having the formula ##STR1## wherein: R.sub.1 is an adenine, cytosine, guanine, thymidine, uracil, 5-substituted uracil, 5-substituted cytosine derivative, 2-fluoroadenine, 2.6-diaminopurine, 2-aminopurine, 6-thioguanine, or 7-deazaadenine group;R.sub.2 is H, or a OH group;R.sub.3 is a OH, O-acyl, O-palmitoyl group or phosphates (as free acid, or its alkali, ammonium or alkyl ammonium salts), or any other precursor group for the hydroxyl group;or a physiologically acceptable salt thereof. Furthermore, the present invention comprises the new compounds:2',3'-dideoxy-3'-fluoro-2-fluoroadenosine,2',3'-dideoxy-3'-fluoro-6-thioguanosine,2',3'-dideoxy-3'-fluoro-2,6-diaminopurineriboside,2',3'-dideoxy-3'-fluoro-2-aminopurineriboside,2',3'-dideoxy-3'-fluoro-5-aminomethyluridine,2',3'-dideoxy-3'-fluoro-5-azidomethyluridine, and2',3'-dideoxy-3'-fluoro-5-hydroxymethyluridine.
    • 治疗AIDS的方法,其包括向需要的患者施用包含治疗有效量的具有下式的化合物(I)的药物组合物,其中:R1是腺嘌呤,胞嘧啶,鸟嘌呤,胸苷,尿嘧啶, 5-取代的尿嘧啶,5-取代的胞嘧啶衍生物,2-氟腺嘌呤,2,6-二氨基嘌呤,2-氨基嘌呤,6-硫鸟嘌呤或7-脱氮腺嘌呤基团; R2是H或OH基; R3是OH,O-酰基,O-棕榈酰基或磷酸酯(作为游离酸,或其碱金属,铵或烷基铵盐)或羟基的任何其它前体基团; 或其生理上可接受的盐。 此外,本发明包括新化合物:2',3'-二脱氧-3'-氟-2-氟腺苷,2',3'-二脱氧-3'-氟-6-硫代鸟苷,2',3'- 二脱氧-3'-氟-2,6-二氨基嘌呤,2',3'-二脱氧-3'-氟-2-氨基嘌呤,2',3'-二脱氧-3'-氟-5-氨甲基尿苷,2' 3'-二脱氧-3'-氟-5-叠氮基甲基尿苷和2',3'-二脱氧-3'-氟-5-羟甲基尿苷。