公开(公告)号：US4587468A

公开(公告)日：1986-05-06

申请号：US692832

申请日：1985-01-18

申请人： Toshihiro Hotta

发明人： Toshihiro Hotta

IPC分类号： H02P6/24 ,  H02P3/00

CPC分类号： H02P6/24

摘要： A sudden stop circuit for a brushless micromotor comprising a means for detecting the off state of the on/off switch of the brushless micromotor and a means for applying a locking pulse signal to at least one motor coil for a specified period depending on the off state detection signal generated by the detection means, whereby the motor rotor is braked by the electromagnetic force generated in the motor coil by the locking pulse signal. This circuit is compact and can apply great braking force to stop the motor in an extremely short time.

摘要翻译： 一种用于无刷微型电动机的突然停止电路，包括用于检测无刷微型电动机的接通/断开开关的断开状态的装置，以及用于根据断开状态向至少一个电动机线圈施加锁定脉冲信号一定时间的装置 由检测装置产生的检测信号，由马达转子通过锁定脉冲信号在电机线圈中产生的电磁力制动。 该电路紧凑，可以在极短的时间内施加大的制动力来停止电机。

公开(公告)号：US4521190A

公开(公告)日：1985-06-04

申请号：US517948

申请日：1983-07-27

申请人： Shozo Nakayama ,  Sekiya Ogino

发明人： Shozo Nakayama ,  Sekiya Ogino

IPC分类号： F16C32/06 ,  A61C1/05 ,  A61C1/08

CPC分类号： F16C32/0685 ,  A61C1/08 ,  F16C32/0614

摘要： An improvement in an air bearing device of an air drive, air journal type dental handpiece is disclosed, wherein a radial gap for journaling a rotor in the radial direction comprises partially enlarged gaps which, serving as air pools, improve the handpiece's cutting performance and prevent abnormal noise and vibration of the turbine blade caused by the whirl phenomenon.

摘要翻译： 公开了一种空气驱动器，空气轴颈型牙科手机的空气轴承装置的改进，其中用于在径向方向上对转子进行记录的径向间隙包括部分扩大的间隙，其用作空气池，从而提高了手持件的切割性能并防止 由涡轮现象引起的涡轮叶片的异常噪声和振动。

公开(公告)号：US4501557A

公开(公告)日：1985-02-26

申请号：US516802

申请日：1983-07-25

申请人： Jun Tamura ,  Takahiro Matsui ,  Kazuo Hozumi

发明人： Jun Tamura ,  Takahiro Matsui ,  Kazuo Hozumi

IPC分类号： A61B6/00 ,  A61B19/00 ,  A61C19/00 ,  A61G15/14 ,  B23Q11/00 ,  F16M11/04 ,  F21V21/26 ,  A61C1/14

CPC分类号： F21V21/26 ,  A61B6/447 ,  A61C19/00 ,  A61G15/14 ,  F16M11/10 ,  F16M11/2064 ,  F16M11/28 ,  F16M13/02 ,  A61B2090/504 ,  F16M2200/044 ,  Y10S362/804

摘要： The present invention relates to a balancing device for vertically movable dental arms such as a dental light arm and a dental tray arm, and more specifically to a balancing device which is capable of accurately positioning the arm at any desired position by sufficiently balancing the weight of a load head with the force of the spring member coaxially inserted in the arm. The balancing device features compact size, low cost and high operability.

摘要翻译： 本发明涉及一种用于垂直移动的牙科臂的平衡装置，例如牙科轻型臂和牙科托盘臂，更具体地涉及一种平衡装置，该平衡装置能够通过充分平衡臂的重量来将臂精确地定位在任何期望的位置 负载头，弹簧构件的力同轴地插入臂中。 平衡装置尺寸紧凑，成本低，操作性好。

公开(公告)号：US4439868A

公开(公告)日：1984-03-27

申请号：US476277

申请日：1983-03-17

申请人： Takao Makino ,  Toshiaki Ikeda

发明人： Takao Makino ,  Toshiaki Ikeda

IPC分类号： H05G1/20 ,  H05G1/32 ,  H05G1/34

CPC分类号： H05G1/20 ,  H05G1/32

摘要： The present invention relates to a medical X-ray radiation power supply apparatus wherein a DC-operated switching circuit is connected at the primary side of a high voltage transformer, and a comparator circuit compares the voltage predetermined by a tube voltage setting circuit with an actual tube voltage detected by a tube voltage detector circuit, then the gain of a comparison voltage is raised so that the actual tube voltage can quickly reach the predetermined tube voltage value, thereby tube voltage errors, which are caused by short photographing time in a medical or breast X-ray photographing apparatus, are eliminated.

摘要翻译： 本发明涉及一种医用X射线辐射电源装置，其中直流操作开关电路连接在高压变压器的初级侧，比较器电路将由管电压设定电路预定的电压与实际 通过管电压检测电路检测到的管电压，则提高比较电压的增益，使得实际的管电压可以快速达到预定的管电压值，从而导致管电压误差，这是由医疗或 乳房X线摄影装置被消除。

公开(公告)号：US4410809A

公开(公告)日：1983-10-18

申请号：US276719

申请日：1981-06-23

申请人： Shuhei Furuichi ,  Masakazu Suzuki ,  Toshiaki Ikeda

发明人： Shuhei Furuichi ,  Masakazu Suzuki ,  Toshiaki Ikeda

IPC分类号： H03K17/56 ,  H03K17/0412 ,  H03K17/687 ,  H03K17/691 ,  H03K3/01 ,  H03K17/60

CPC分类号： H03K17/04123 ,  H03K17/6877 ,  H03K17/691

摘要： The disclosure relates to a gate driving circuit for a depletion type, static induction transistor, including a capacitor coupled between the emitters of complementary-connected NPN and PNP transistors and the SIT gate, high value resistor parallel-connected to a series connection of a diode and a resistor between the SIT gate, and a negative gate voltage source.

摘要翻译： 本发明涉及用于耗尽型静电感应晶体管的栅极驱动电路，其包括耦合在互补NPN和PNP晶体管的发射极之间的电容器和SIT栅极，并联连接到二极管的串联连接的SIT栅极 以及SIT栅极和负栅极电压源之间的电阻器。

公开(公告)号：US4370752A

公开(公告)日：1983-01-25

申请号：US319925

申请日：1981-11-10

申请人： Shuhei Furuichi ,  Masakazu Suzuki

发明人： Shuhei Furuichi ,  Masakazu Suzuki

IPC分类号： H05G1/34 ,  H05G1/30

CPC分类号： H05G1/34

摘要： This device feeds back an output proportional to the electric current flowing through an X-ray tube to a filament current controlling means, reads out a difference between the increase and decrease in the current of the X-ray tube made by the effect of charge on the wall of the X-ray tube, and constantly stabilizes the current in the tube at the optimum value by increasing and decreasing a filament current in response to the difference read out.

摘要翻译： 该装置将与流过X射线管的电流成比例的输出反馈到灯丝电流控制装置，读出由电荷效应引起的X射线管的电流的增加和减小之间的差异 通过根据读出的差异增加和减少灯丝电流，恒定地将管中的电流稳定在最佳值。

公开(公告)号：US4326274A

公开(公告)日：1982-04-20

申请号：US165385

申请日：1980-07-03

申请人： Mitsuhiko Hotta ,  Shuhei Furuichi ,  Takanori Shigihara

发明人： Mitsuhiko Hotta ,  Shuhei Furuichi ,  Takanori Shigihara

IPC分类号： H04R1/00 ,  B06B1/06 ,  G10K11/00 ,  H04B11/00 ,  H04R1/20 ,  H04R17/00

CPC分类号： G10K11/002 ,  B06B1/0681 ,  H04B11/00

摘要： The disclosure relates to a system for aerially transmitting an ultrasonic view of a vibration mode, small in angle of direction, in a clear state and to a transmitter and a receiver used in the system. According to the system, an ultrasonic pulse can be used for distance measurement, control and other signal means even at relatively short distance.

摘要翻译： 本公开涉及一种用于在清洁状态下以小角度的振动模式以及系统中使用的发射机和接收机的空中传输超声波视图的系统。 根据该系统，即使在距离较短的情况下，也可以使用超声波脉冲进行距离测量，控制等信号手段。

公开(公告)号：US4286163A

公开(公告)日：1981-08-25

申请号：US131709

申请日：1980-03-19

申请人： Masakazu Suzuki

发明人： Masakazu Suzuki

IPC分类号： A61B6/14 ,  H02P5/50

CPC分类号： A61B6/14 ,  H02P5/51

摘要： The disclosure relates to a dental radiographic apparatus for photographing the entire jaws wherein the apparatus includes an X-ray generator and an X-ray film cassette holder mounted respectively at one end of a rotary arm and at the other end thereof. The apparatus electrically controls an X-ray film feed speed so as to be corresponding to and synchronous with the rotatingly travelling speed of the X-ray generator.

摘要翻译： 本公开涉及一种用于拍摄整个爪的牙科放射线照相设备，其中该装置包括分别安装在旋转臂的一端并在其另一端的X射线发生器和X射线胶片盒保持架。 该装置电动控制X射线胶片进给速度，以便与X射线发生器的旋转行进速度对应并同步。

公开(公告)号：US4286161A

公开(公告)日：1981-08-25

申请号：US121499

申请日：1980-02-14

申请人： Kazuo Hozumi

发明人： Kazuo Hozumi

IPC分类号： G03B42/02 ,  A61B6/14 ,  G03B42/04

CPC分类号： A61B6/14

摘要： The disclosure relates to a film cassette drive mechanism in a dental radiographic apparatus for photographing the entire jaws which apparatus is used in tomography. The drive mechanism is of such construction that a film cassette disposed at one end of a rotary arm of the apparatus in an opposed relation with respect to an X-ray source disposed at the other end thereof is moved to feed a film necessary for tomography by driving a variable speed motor inside the cassette holder in synchronism with the speed of travel of the X-ray source responsive to the rotation of the rotary arm.

摘要翻译： 本公开涉及一种用于拍摄整个颌骨的牙科放射线照相设备中的薄膜盒驱动机构，该装置用于层析成像。 驱动机构的结构是，将设置在设备的旋转臂的一端处的薄膜盒相对于设置在其另一端的X射线源相对地移动，以便通过 与旋转臂的旋转的X射线源的行进速度同步地驱动盒式磁带架内的变速电动机。

公开(公告)号：US4218216A

公开(公告)日：1980-08-19

申请号：US923544

申请日：1978-07-11

申请人： Hiroshi Sugai ,  Haruo Ogawa

发明人： Hiroshi Sugai ,  Haruo Ogawa

IPC分类号： A61C1/08 ,  A61C1/18 ,  A61C11/00

CPC分类号： A61C1/181

摘要： A method of lubricating a dental hand-piece wherein a small-sized lubricating oil sealed oiler is detachably mounted in a position adjacent to the rotor side of a rotor driving air passageway of a dental hand-piece device, the lubricating oil from said oiler is continuously mixed into rotor driving air to atomize said oil by utilizing the pressure and flow rate of said rotor driving air when said hand-piece is in use, and the mist oil thus obtained is supplied together with said air to said rotor to thereby continuously lubricate the rotor; and a novel small-sized oiler used in the method; are disclosed.

摘要翻译： 一种润滑牙科用手柄的方法，其中小型润滑油密封的加油器可拆卸地安装在与牙科手持装置的转子驱动空气通道的转子侧相邻的位置，来自所述加油器的润滑油是 当所述手持件使用时，利用所述转子驱动空气的压力和流量，连续混合到转子驱动空气中以使所述油雾化，并将所得到的雾油与所述空气一起供应到所述转子，从而连续润滑 转子; 和该方法中使用的新型小型加油机; 被披露。