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    Camera having an electromagnetically driven shutter
    91.
    发明授权
    Camera having an electromagnetically driven shutter 失效
    相机具有电磁驱动的快门

    公开(公告)号：US4334749A

    公开(公告)日：1982-06-15

    申请号：US228318

    申请日：1981-01-26

    Applicant: Syuichiro Saito ,  Nobuaki Date ,  Ryoichi Suzuki ,  Yoji Sugiura

    Inventor： Syuichiro Saito ,  Nobuaki Date ,  Ryoichi Suzuki ,  Yoji Sugiura

    IPC: G03B9/36 ,  G03B9/08 ,  G03B9/18 ,  H02K37/12

    CPC classification number: G03B9/18 ,  G03B9/08

    Abstract: A camera having an electromagnetic driving source for operating a focal plane shutter in the camera, includes a shutter base plate and a driving arm pivoted on the base plate for swinging movement in a plane parallel to the plate. A group of thin shutter blades are supported on the driving arm parallel to the surface of the base plate. The output shaft of a motor is coupled with the driving arm, and either one of the rotor of the motor, or a permanent magnet forming a part of the stator of the motor, provides magnetic flux parallel to the axis of the output shaft, thereby causing the rotor to rotate the output shaft and drive the focal plane shutter.

    Abstract translation: 具有用于在相机中操作焦平面快门的电磁驱动源的相机包括快门基板和枢转在基板上的驱动臂，用于在平行于平板的平面中摆动。 一组薄的快门叶片平行于基板的表面支撑在驱动臂上。 电动机的输出轴与驱动臂连接，电动机的转子或形成电动机定子的一部分的永磁体中的任一个提供平行于输出轴的磁通的磁通量，由此 使转子旋转输出轴并驱动焦平面快门。

    Motorless magnetically coupled stirrer
    92.
    发明授权
    Motorless magnetically coupled stirrer 失效
    无电磁耦合搅拌器

    公开(公告)号：US4199265A

    公开(公告)日：1980-04-22

    申请号：US955970

    申请日：1978-10-30

    Applicant: Robert A. Sanderson ,  Patrick S. Chan

    Inventor： Robert A. Sanderson ,  Patrick S. Chan

    IPC: B01F13/08 ,  B01F15/00 ,  H02K7/14 ,  H02K37/12

    CPC classification number: H02K37/125 ,  B01F13/0818 ,  H02K7/14 ,  B01F15/00123

    Abstract: A plurality of magnetic field generating, electrical coils are preferably arranged in a circle, in one embodiment. Digitally controlled, recurring switching pulses are generated for sequentially defining a plurality of discrete time periods. During each of these time periods, a separate magnetic field is generated responsive to each switching pulse. The pulses are applied to the coil, in turn, for sequentially stepping a magnetic field in a rotary motion about the circle of coils. In other embodiments, the pole pieces may be arranged in another geometry. For example, they could be linearly positioned to slide a stirrer or to lift a stirrer member up a test tube. A substance which is to be stirred is placed in a non-magnetic container positioned within the stepping magnetic field. A stir rod of magnetic material is placed in the container and within the stepping magnetic field, so that the stir rod couples into and rotates or otherwise moves with the rotary magnetic field. The invention is particularly artractive when used with electronic controllers, such as counters, sequences, sensors, electronic controllers, or the like, since it is much easier for such a electronic devices to control digital pulses than to control analog currents.

    Abstract translation: 在一个实施例中，多个磁场产生电线圈优选地布置成圆形。 产生数字控制的循环切换脉冲，用于顺序地定义多个离散时间段。 在这些时间周期期间，响应于每个开关脉冲产生单独的磁场。 脉冲被施加到线圈，依次围绕线圈圈旋转运动顺序地步进磁场。 在其他实施例中，极片可以以另一几何形状布置。 例如，它们可以线性地定位以滑动搅拌器或将搅拌器提升到试管上。 将要搅拌的物质放置在位于步进磁场内的非磁性容器中。 将磁性材料的搅拌棒放置在容器中并在步进磁场内，使得搅拌棒与旋转磁场耦合并旋转或以其它方式移动。 当与电子控制器（例如计数器，序列，传感器，电子控制器等）一起使用时，本发明特别具有吸引力，因为这样的电子设备比控制模拟电流更容易控制数字脉冲。

    Double claw tooth stator synchronous and stepping motor with indicator
    93.
    再颁专利
    Double claw tooth stator synchronous and stepping motor with indicator 失效

    公开(公告)号：USRE28075E

    公开(公告)日：1974-07-16

    申请号：US28075D

    申请日：1972-10-19

    IPC: H02K37/12 ,  H02K37/14

    CPC classification number: H02K37/12 ,  H02K37/14

    Abstract: A SYNCHRONOUS AND STEPPING MOTOR WITH TWO STATOR SECTIONS, EACH HAVING A PLURALITY OF INTERLEAVED CLAW TOOTH STATOR POLES ENERGIZIED BY A STATOR COIL SO THAT ALTERNATE POLES ARE OF OPPOSITE POLARITY. THE STATOR SECTIONS ARE ARRANGED END-TO-END ALONG A COMMON AXIS AND THE POLES OF EACH SECTION ARE ANGULARLY SPACED APART BY COMMENSURATE AMOUNTS, THE POLES OF ONE SECTION BEING ANGULARLY DISPLACED WITH RESPECT TO THE POLES IN THE OTHER SECTION, THE ROTOR IS PERMANENTLY MAGNETIZED TO HAVE MAGNETIC POLES ANGULARLY SPACED APART COMMENSURATELY WITH THE POLES IN THE STATOR SECTIONS, AND THE COILS ARE SO ENERGIZED AS TO PRODUCE OUT-OF-PHASE MAGNETIC FIELDS TO ROTATE THE ROTORS,THE PHASE DISPLACEMENT OF THE MAGNETIC FIELDS MAY RESULT FROM APPLYING OUTOF-PHASE ALTERNATING CURRENTS OR PROPERLY TIMED CURRENT PLUSES TO THE COILS OF THE TWO STATOR SECTIONS, OR IT MAY RESULT FROM THE SHADING EFFECT OF A CONDUCTIVE COIL FROM IN ONE STATOR SECTION. AN OUTER CYLINDRICAL SHELL WITH

    INDICIA IS PROVIDED ON THE ROTOR WHEREBY THE INDICIA MAY BE VIEWED THROUGH AN APERTURE IN THE COVER.

    Electromechanical indicator device
    94.
    发明授权
    Electromechanical indicator device 失效
    电子指示器装置

    公开(公告)号：US3631475A

    公开(公告)日：1971-12-28

    申请号：US3631475D

    申请日：1969-12-05

    Applicant: FELDIX GMBH

    Inventor： QUANDT GERHARD ,  MULLER HANS-CHRISTIAN

    IPC: G08B5/24 ,  G09F11/04 ,  G09F11/23 ,  H02K37/12 ,  H02K21/16

    CPC classification number: H02K37/12 ,  G08B5/24 ,  G09F11/04 ,  G09F11/23

    Abstract: An electromechanical rotary indicating device for selectively displaying a plurality of symbols having a cylindrical permanent magnet rotor, to which a symbol-carrying member is coupled, which is selectively deflectable to a plurality of discrete angularly spaced positions by selective energization of the excitation coils or windings placed on the pole pieces of the stator. The periphery or surface of the rotor is provided with a plurality of longitudinal or axial grooves which are arranged asymmetrically with respect to the direction of the magnetic field in the rotor, which direction is transverse to the axis of rotation of the rotor.

    Stator core and motor
    98.
    发明授权
    Stator core and motor 有权

    公开(公告)号：US12088143B2

    公开(公告)日：2024-09-10

    申请号：US17915131

    申请日：2021-04-23

    Applicant: Nidec Corporation

    Inventor： Junya Mizukami

    IPC: H02K1/14 ,  H02K1/18 ,  H02K37/12

    CPC classification number: H02K1/145 ,  H02K1/187 ,  H02K37/12

    Abstract: A stator core of a motor includes a disk portion and a pole-tooth yoke. The disk portion has a disk shape that extends in a radial direction around a central axis extending in a vertical direction. The pole-tooth yoke is located along a radially outer end of the disk portion. The pole-tooth yoke includes an annular portion and a pole tooth. The annular portion is connected to the radially outer end of the disk portion and extends in a circumferential direction. The pole tooth protrudes to one axial side from the annular portion. The disk portion and the pole-tooth yoke are defined by different members.

    STATOR CORE AND MOTOR
    100.
    发明公开
    STATOR CORE AND MOTOR 审中-公开

    公开(公告)号：US20230155428A1

    公开(公告)日：2023-05-18

    申请号：US17915131

    申请日：2021-04-23

    Applicant: Nidec Corporation

    Inventor： Junya MIZUKAMI

    IPC: H02K1/14 ,  H02K37/12

    CPC classification number: H02K1/145 ,  H02K37/12

    Abstract: A stator core of a motor includes a disk portion and a pole-tooth yoke. The disk portion has a disk shape that extends in a radial direction around a central axis extending in a vertical direction. The pole-tooth yoke is located along a radially outer end of the disk portion. The pole-tooth yoke includes an annular portion and a pole tooth. The annular portion is connected to the radially outer end of the disk portion and extends in a circumferential direction. The pole tooth protrudes to one axial side from the annular portion. The disk portion and the pole-tooth yoke are defined by different members.

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