DC motor driven centrifugal fan
    7.
    发明授权
    DC motor driven centrifugal fan 失效
    直流电机驱动离心风机

    公开(公告)号:US5052888A

    公开(公告)日:1991-10-01

    申请号:US551967

    申请日:1990-07-11

    IPC分类号: F04D29/42 F04D29/66

    CPC分类号: F04D29/668 F04D29/424

    摘要: A centrifugal fan includes a brushless d.c. motor, an impeller mounted on the motor and a scroll on which the motor is mounted. The scroll defines the air inlet and outlet and has an outer wall curved around the impeller to define a divergent air flow path. By truncating the scroll at the outlet substantially to eliminate any flat portions on the outer wall susceptible to mechanical vibrations at frequencies excited by the d.c. motor, a noise reduction is achieved. Further noise reduction may be achieved by resiliently mounting the motor on the scroll.

    摘要翻译: 离心风机包括无刷直流 马达,安装在马达上的叶轮和安装有马达的涡卷。 涡卷限定空气入口和出口,并且具有围绕叶轮弯曲的外壁,以限定发散的空气流动路径。 通过在出口处截断涡管,基本上消除外壁上的任何平坦部分,易受直流激发的频率的机械振动。 电机,实现了降噪。 可以通过将电动机弹性地安装在涡旋件上来实现进一步的降噪。

    Aminoethylthiophene derivatives
    8.
    发明授权
    Aminoethylthiophene derivatives 失效
    氨基乙基噻吩衍生物

    公开(公告)号:US5208252A

    公开(公告)日:1993-05-04

    申请号:US919650

    申请日:1992-07-24

    IPC分类号: C07D333/20

    CPC分类号: C07D333/20 Y10S514/821

    摘要: This invention relates to aminoethylthiophene derivatives and more particularly 2-and 3-aminoethylthiophene derivatives which are useful as antiarrhythmic agents, their methods of use as antiarrhythmic agents, and novel intermediate compounds useful for preparation of the aminoethylthiophene derivatives of the invention.

    摘要翻译: 本发明涉及氨基乙基噻吩衍生物,更具体地涉及可用作抗心律不齐剂的2-和3-氨基乙基噻吩衍生物,其作为抗心律失常剂的用途,以及可用于制备本发明氨基乙基噻吩衍生物的新型中间体化合物。

    Ethanesulfonamide derivatives
    9.
    发明授权
    Ethanesulfonamide derivatives 失效
    乙磺酰胺衍生物

    公开(公告)号:US4874771A

    公开(公告)日:1989-10-17

    申请号:US240976

    申请日:1988-09-06

    申请人: Ronald K. Russell

    发明人: Ronald K. Russell

    IPC分类号: C07D295/096

    CPC分类号: C07D295/096

    摘要: The synthesis of novel ethanesulfonamide compounds is described. The novel ethanesulfonamide compounds have antisecretory activity and are used in the treatment of peptic ulcer disease.

    摘要翻译: 描述了新的乙磺酰胺化合物的合成。 新型乙磺酰胺化合物具有抗分泌活性,用于治疗消化性溃疡病。

    Aminoethylthiophene derivatives
    10.
    发明授权
    Aminoethylthiophene derivatives 失效
    氨基乙基噻吩衍生物

    公开(公告)号:US5310941A

    公开(公告)日:1994-05-10

    申请号:US4155

    申请日:1993-01-13

    IPC分类号: C07D333/20 C07D333/24

    CPC分类号: C07D333/20 Y10S514/821

    摘要: This invention relates to aminoethylthiophene derivatives and more particularly 2- and 3-aminoethylthiophene derivatives which are useful as antiarrhythmic agents, their methods of use as antiarrhythmic agents, and novel intermediate compounds useful for preparation of the aminoethylthiophene derivatives of the invention.

    摘要翻译: 本发明涉及氨基乙基噻吩衍生物,特别是可用作抗心律不齐剂的2-和3-氨基乙基噻吩衍生物,其作为抗心律不齐剂的使用方法,以及可用于制备本发明氨基乙基噻吩衍生物的新型中间体化合物。