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    Rotating electric machine usable in radioactive environment
    1.
    发明授权
    Rotating electric machine usable in radioactive environment 有权
    旋转电机可用于放射性环境

    公开(公告)号：US6093988A

    公开(公告)日：2000-07-25

    申请号：US187484

    申请日：1998-11-06

    申请人： Yoshinao Okawa ,  Yoshihiro Murano ,  Isao Ito ,  Kenichi Okada ,  Kazuo Funabashi ,  Masanori Miyamoto ,  Kiyohito Mizuide ,  Hirotugu Kinoshita ,  Fumihiro Itano ,  Takeshi Uesugi

    发明人： Yoshinao Okawa ,  Yoshihiro Murano ,  Isao Ito ,  Kenichi Okada ,  Kazuo Funabashi ,  Masanori Miyamoto ,  Kiyohito Mizuide ,  Hirotugu Kinoshita ,  Fumihiro Itano ,  Takeshi Uesugi

    IPC分类号： G21F3/00 ,  H02K5/00 ,  H02K5/04 ,  H02K5/16 ,  H02K5/173 ,  H02K5/06 ,  H02K5/15

    CPC分类号： H02K5/04 ,  H02K5/1732

    摘要： The invention relates to a rotating electric machine including (a) a rotor having a rotating shaft; (b) a bearing for supporting the rotating shaft; (c) a radiation resistant grease applied to the bearing; and (d) a shield layer for shielding the grease from radiation. The shield layer is made of lead and surrounds the bearing. The shield layer includes (1) a first cylindrical shield member that is positioned to cover the bearing, such that the bearing is shielded from a first radiation that is in a direction substantially perpendicular to an axis of the rotating shaft, and (2) second and third disk shield members that are positioned to interpose therebetween the bearing in a direction along the axis of the rotating shaft, such that the bearing is shielded from a second radiation that is in a direction substantially along the axis of the rotating shaft. Thus, the rotor of this rotating electric machine is stably supported in the bearing for a long time even under a highly radioactive environment. That is, the rotating electric machine can be rotated stably for a long time.

    摘要翻译： 本发明涉及一种旋转电机，其包括：（a）具有旋转轴的转子; （b）用于支撑旋转轴的轴承; （c）施加到轴承的防辐射油脂; 和（d）用于屏蔽防止辐射的润滑脂的屏蔽层。 屏蔽层由铅制成并围绕轴承。 屏蔽层包括（1）第一圆柱形屏蔽构件，其被定位成覆盖轴承，使得轴承与基本上垂直于旋转轴的轴线的方向上的第一辐射屏蔽，以及（2）第二 以及第三盘屏蔽构件，其定位成沿着所述旋转轴的轴线的方向介于所述轴承之间，使得所述轴承与基本上沿着所述旋转轴的轴线的方向的第二辐射屏蔽。 因此，即使在高放射性环境下，该旋转电机的转子也能够长期稳定地支撑在轴承中。 也就是说，旋转电机可以长时间稳定地旋转。

    Method of detecting a change in the property of a rubber member
    3.
    发明授权
    Method of detecting a change in the property of a rubber member 失效
    检测橡胶构件的性能变化的方法

    公开(公告)号：US05999004A

    公开(公告)日：1999-12-07

    申请号：US694921

    申请日：1996-08-08

    申请人： Yoshinao Okawa ,  Youichi Akutsu ,  Ikuo Shimoda ,  Masayoshi Ikenaga

    发明人： Yoshinao Okawa ,  Youichi Akutsu ,  Ikuo Shimoda ,  Masayoshi Ikenaga

    IPC分类号： G01N27/02 ,  G01N33/44 ,  G01R27/08

    CPC分类号： G01N27/02 ,  G01N33/445

    摘要： The electrical impedance of a dumbbell-shaped rubber sheet (1) is measured, and the deterioration of the dumbbell-shaped rubber sheet (1) is detected from the result of the measurement. The present invention relates to a method of detecting a change in the property of a rubber member or a rubber member of a rubber bearing, such as a change in the shape or dimensions thereof, a change in the state of the stress and strain thereof, deterioration thereof, and the like.

    摘要翻译： PCT No.PCT / JP94 / 01048 Sec。 371日期：1995年2月1日 102（e）1995年2月1日PCT PCT 1994年6月29日PCT公布。 出版物WO95 / 01564 日期1995年1月12日测量哑铃形橡胶片（1）的电阻抗，并且从测量结果检测哑铃形橡胶片（1）的劣化。 本发明涉及一种检测橡胶构件或橡胶构件的橡胶构件的性质变化的方法，例如其形状或尺寸的变化，其应力和应变状态的变化， 劣化等。

    Grounding cable
    4.
    发明授权
    Grounding cable 有权
    接地电缆

    公开(公告)号：US06271466B1

    公开(公告)日：2001-08-07

    申请号：US09413245

    申请日：1999-10-07

    申请人： Masaki Tsuneoka ,  Yoshinao Okawa ,  Yoshihiro Murano ,  Kenichi Okada

    发明人： Masaki Tsuneoka ,  Yoshinao Okawa ,  Yoshihiro Murano ,  Kenichi Okada

    IPC分类号： H01B1106

    CPC分类号： H01B7/0009 ,  H01B7/0054

    摘要： A method of preventing a high-frequency noise generated in an electronic device, remaining in a grounding cable as a standing wave and transmitted to electric devices, is disclosed, which method including disposing, directly or via an insulating layer, a non-metallic conductive material having a slight electric resistance, on a conductor of the above-mentioned grounding cable, making the electric resistance of the non-metallic conductive material consume the high-frequency noise flowing on the conductor surface of the grounding cable by virtue of a skin effect, whereby resonance of the high-frequency noise is reduced. Resonance of the high-frequency noise generated from various electronic devices in an office building and the like can be easily reduced. Consequently, various disadvantages due to high-frequency noise can be avoided. In addition, the slight electric resistance R of the non-metallic conductive material and inductance L of the metal conductor are set to satisfy the formula: 2&pgr;fL/R≦1, so that the resonance of a high-frequency noise can be reduced.

    摘要翻译： 公开了一种防止在电子设备中产生的高频噪声，留在接地电缆中作为驻波并传输到电气设备的方法，该方法包括直接或经由绝缘层设置非金属导电 在上述接地电缆的导体上具有轻微电阻的材料，使得非金属导电材料的电阻消耗由于皮肤效应而在接地电缆的导体表面上流动的高频噪声 从而降低了高频噪声的共振。 可以容易地减少由办公楼等中的各种电子设备产生的高频噪声的共振。 因此，可以避免由于高频噪声引起的各种缺点。 此外，非金属导电材料的轻微电阻R和金属导体的电感L被设定为满足公式：2pifL / R <= 1，使得可以降低高频噪声的谐振。