Magnetic head with improved supporter for perpendicular magnetization
recording
    1.
    发明授权
    Magnetic head with improved supporter for perpendicular magnetization recording 失效
    磁头具有改进的垂直磁化记录支持

    公开(公告)号:US4745509A

    公开(公告)日:1988-05-17

    申请号:US409895

    申请日:1982-08-20

    IPC分类号: G11B5/127 G11B5/31 G11B5/187

    CPC分类号: G11B5/3106 G11B5/1278

    摘要: In a magnetic head of perpendicular magnetization type having main and sub magnetic poles arranged at both sides of a recording medium, a nonmagnetic supporter holding a high permeability magnetic thin layer of the main magnetic pole is formed by a polycrystalline sintered body substantially composed of titanium carbide and alumina. This polycrystalline sintered product well matches with a recording medium having a cobalt-chromium alloy layer so that the recording medium does not wear for a long time of use, and therefore, so that the contact surface of the main magnetic pole is hardly damaged. The same sintered body may also be used for the sub magnetic pole arranged to be in contact with the recording medium. Some structural improvements are also provided so that undesirable influence due to an adhesive layer adjacent to the magnetic thin layer is removed. One or more additional thin layers may be provided for reducing crosstalk between adjacent tracks. A magnetically shielding block is provided to prevent undesirable influence caused by an external magnetic field.

    摘要翻译: 在具有设置在记录介质两侧的主磁极和副磁极的垂直磁化型的磁头中,保持主磁极的高磁导率磁性薄层的非磁性载体由基本上由碳化钛组成的多晶烧结体形成 和氧化铝。 该多晶烧结体与具有钴 - 铬合金层的记录介质良好地匹配,使得记录介质长时间不磨损,因此,主磁极的接触表面几乎不被损坏。 相同的烧结体也可以用于与记录介质接触的副磁极。 还提供了一些结构改进,以便消除由于与磁性薄层相邻的粘合剂层引起的不期望的影响。 可以提供一个或多个附加的薄层以减少相邻轨道之间的串扰。 提供磁屏蔽块以防止由外部磁场引起的不期望的影响。

    Shredder with increased reversed unlocking torque
    2.
    发明授权
    Shredder with increased reversed unlocking torque 失效
    破碎机具有增加的反向解锁力矩

    公开(公告)号:US4545537A

    公开(公告)日:1985-10-08

    申请号:US356924

    申请日:1982-03-10

    摘要: A shredder comprises a cutter unit including a pair of rotary cutters for shredding a material therebetween while the rotary cutters are rotating in a normal direction, a reversible motor for rotating the rotary cutters through a speed reducer, and a switch unit for selectively causing the motor to rotate the rotary cutter in the normal direction or reversing the motor to rotate the rotary cutters in a reverse direction to remove the material from the rotary cutters when the material is jammed in the rotary cutters. An electrical control circuit is responsive to actuation of the switch unit for enabling the motor to produce a larger torque while rotating in the reverse direction than the torque produced while rotating in the normal direction, thereby reliably releasing the rotary cutters from biting engagement with the material when jammed. The switch unit has means for generating a time delay while switching between rotation of the motor in the normal direction and rotation of the motor in the reverse direction, so that the motor and the speed reducer are protected against an undue load when starting to rotate in the reverse direction.

    摘要翻译: 切碎机包括:切刀单元,包括一对旋转切割器,用于在旋转切割器沿正向旋转的同时切割材料;旋转切割器通过减速器旋转的可逆马达;以及用于选择性地使马达 使旋转刀具沿正常方向转动或反转电机,使旋转刀具沿相反方向转动,以便当材料卡在旋转刀具中时,从旋转刀具中取出材料。 电气控制电路响应于开关单元的致动,使得电动机能够在反向旋转时产生比在正向旋转时产生的转矩更大的转矩,从而可靠地释放旋转刀具与材料咬合 卡住时 开关单元具有用于在正常方向上转动电动机和在相反方向上旋转电动机之间产生时间延迟的装置,使得电动机和减速器在开始旋转时被保护以防止过大的负载 反方向。

    Methane fermentation
    3.
    发明授权
    Methane fermentation 失效
    甲烷发酵

    公开(公告)号:US4540666A

    公开(公告)日:1985-09-10

    申请号:US407273

    申请日:1982-08-10

    摘要: A methane fermentation process wherein a strain of the genus Methanobacterium is cultivated in a fermenter containing at least a carbon source, a nitrogen source, inorganic salts and micro-flora for methane fermentation. The strain has a methanogenic activity above 8.7.times.10.sup.-8 ml/cell.day in the stationary phase of growth, exhibits the methanogenic activity even at an oxygen partial pressure of 1/30 atm. and is allowed to live under an oxygen partial pressure up to 1/5 atm. The seed of the strain is obtained by anaerobically cultivating the strain in a culture medium containing at least nitrogen sources, inorganic salts and reducing agents in a mesophilic range of 25.degree. to 45.degree. C. using a substrate such as a mixed gas of hydrogen and carbon dioxide, a formate or an acetate. The growth of the strain is facilitated when cocultured with a strain belonging to the genus Clostridium.

    摘要翻译: 一种甲烷发酵方法,其中在含有至少一个碳源,氮源,无机盐和用于甲烷发酵的微生物群的发酵罐中培养甲烷杆菌属菌株。 该菌株在生长的固定期中具有高于8.7×10-8毫升/小时的甲烷生成活性,即使在1/30大气压的氧分压下也显示产甲烷活性。 并允许在高达1/5大气压的氧分压下生活。 菌株的种子通过在含有至少氮源,无机盐和还原剂的培养基中在25℃至45℃的中温范围内通过厌氧培养菌株获得,使用底物如氢气和 二氧化碳,甲酸盐或乙酸盐。 当与属于梭菌属的菌株共培养时,菌株的生长变得容易。

    Liquid fuel burner having an oxygen sensor located in a flame
    4.
    发明授权
    Liquid fuel burner having an oxygen sensor located in a flame 失效
    具有位于火焰中的氧传感器的液体燃料燃烧器

    公开(公告)号:US4534727A

    公开(公告)日:1985-08-13

    申请号:US320761

    申请日:1981-11-12

    申请人: Mituhiro Imajima

    发明人: Mituhiro Imajima

    CPC分类号: F23D3/02 F23D3/18 F23N5/006

    摘要: In a liquid fuel burner of the type wherein vaporization of the fuel is sustained by the heat of its own flame, an oxygen sensor is located in the flame to provide a signal when the flame diminishes indicating the occurrence of an oxygen shortage condition to permit a safety device to automatically extinguish the flame.

    摘要翻译: 在燃料蒸发由其自身火焰的热量维持的液体燃料燃烧器中,氧气传感器位于火焰中,以在火焰消失时提供信号,指示氧气短缺状况的发生,以允许 安全装置自动熄灭火焰。

    Arc scan ultrasonic transducer array
    6.
    发明授权
    Arc scan ultrasonic transducer array 失效
    电弧扫描超声波换能器阵列

    公开(公告)号:US4462092A

    公开(公告)日:1984-07-24

    申请号:US263739

    申请日:1981-05-14

    摘要: A plurality of transducers is arranged successively on a common impedance matching layer of a resilient material. Each transducer comprises an elongated piezoelectric element having a width expansion vibrational mode, a pair of first and second electrodes attached to opposite surfaces of the element across its thickness and an elongated block of an impedance matching material disposed between the second electrode and the common impedance matching layer. The common impedance matching layer is bent to take the shape of an arch to conform to the surface of a frame structure which is convexed in the direction of propagation of ultrasonic energy. The piezoelectric elements are secured to the frame so that they bridge the parallel side members of the frame. The piezoelectric members are divided into a plurality of subgroups, each composed of successively arranged elements. The piezoelectric elements of a given subgroup are selected and energized during each clock interval for transmission of focused ultrasonic energy. The subgroup to be selected is shifted linearly to the next by at least one element in response to successive clock pulses. Becuase of the convex shape of the array, the transmitted energy is successively angulated to provide arc scan.

    摘要翻译: 多个换能器依次布置在弹性材料的公共阻抗匹配层上。 每个换能器包括具有宽度膨胀振动模式的细长压电元件,连接到元件横跨其厚度的相对表面的一对第一和第二电极以及设置在第二电极和公共阻抗匹配之间的阻抗匹配材料的细长块 层。 弯曲公共阻抗匹配层以使拱形形状符合在超声波能量传播方向上凸起的框架结构的表面。 压电元件固定到框架上,使得它们桥接框架的平行侧构件。 压电构件被分成多个子组,每个子组由连续排列的元件组成。 给定子组的压电元件在每个时钟间隔期间被选择和激励以传输聚焦的超声波能量。 所选择的子组响应于连续的时钟脉冲,被至少一个元素线性地移位到下一个元件。 成为阵列的凸形,发射能量被连续成角度,以提供电弧扫描。

    Semiconductor integrated circuit having stacked integrated injection
logic circuits
    7.
    发明授权
    Semiconductor integrated circuit having stacked integrated injection logic circuits 失效
    具有层叠集成注入逻辑电路的半导体集成电路

    公开(公告)号:US4459496A

    公开(公告)日:1984-07-10

    申请号:US251966

    申请日:1981-04-03

    IPC分类号: H03K19/091 H03K19/092

    CPC分类号: H03K19/091

    摘要: In a stacked, multilayer IIL (integrated injection logic) circuit, with which power consumption can be significantly reduced, a discharging circuit constructed of an IIL constant-current circuit or of a resistor is provided for one of transistors which are used for shifting the level of a signal from an IIL circuit of a top layer to an IIL circuit of a bottom layer, so that signal transmission therebetween is prevented from deterioration. A charging circuit may be added to another transistor, while a diode may be interposed between these transistors. Additional diodes may be interposed between adjacent layers for speeding up the signal transmission from one layer to another upper layer.

    摘要翻译: 在堆叠的多层IIL(集成注入逻辑)电路中,功率消耗可以显着降低,由用于移位电平的晶体管之一提供由IIL恒流电路或电阻构成的放电电路 从顶层的IIL电路到底层的IIL电路的信号,从而防止它们之间的信号传输劣化。 充电电路可以被添加到另一个晶体管,而二极管可以插在这些晶体管之间。 可以在相邻层之间插入附加的二极管,以加速从一个层到另一个上层的信号传输。

    Combination tomographic and cardiographic ultrasonic imaging method and
system
    9.
    发明授权
    Combination tomographic and cardiographic ultrasonic imaging method and system 失效
    组合断层扫描和心脏超声成像方法及系统

    公开(公告)号:US4423737A

    公开(公告)日:1984-01-03

    申请号:US231935

    申请日:1981-02-04

    摘要: Ultrasonic echo signals are successively sampled and converted to digital echo data which are written into a first digital memory column by column and then read out row by row into a first buffer memory. The digital echo data which are derived in response to beams successively transmitted in a predetermined direction are written into columns of a second digital memory and read out of the memory in rows into a second buffer memory. The data stored in the first and second buffer memories are read out for digital-to-analog conversion and selectively applied within a television "frame" interval to control electron beam intensity of a single cathode ray tube so as to present tomographic and cardiographic images in different display areas of the tube.

    摘要翻译: 超声波回波信号被连续采样并转换成数字回波数据,数字回波数据逐列地写入第一数字存储器,然后逐行读出到第一缓冲存储器中。 响应于沿预定方向连续发送的波束而导出的数字回波数据被写入第二数字存储器的列,并以行的形式从存储器读出到第二缓冲存储器中。 读出存储在第一和第二缓冲存储器中的数据进行数模转换,并选择性地施加在电视“帧”间隔内以控制单个阴极射线管的电子束强度,以便将断层摄影和心电图像呈现在 管的不同显示区域。

    Bandpass filter for UHF band
    10.
    发明授权
    Bandpass filter for UHF band 失效
    UHF频带带通滤波器

    公开(公告)号:US4423396A

    公开(公告)日:1983-12-27

    申请号:US306855

    申请日:1981-09-29

    摘要: In a bandpass filter having five or more resonator stages, a sub transmission line is coupled to the main transmission line at the first and fourth resonators. The first to fourth resonators provide peak attenuation points at both sides of the center frequency in the attenuation curve, while the remaining resonators following the fourth resonator further sharpen the attenuation characteristics of the bandpass filter. The main and sub transmission lines may be formed by striplines on a printed circuit board, while the sub transmission line can be capacity coupled to the main transmission line. Coupling capacitances are freely set by setting the length of each gap between adjacent striplines to a desired value. Thus, the peak attenuation points can be accurately controlled to provide a bandpass filter having superior characteristics.

    摘要翻译: 在具有五个或更多个谐振器级的带通滤波器中,在第一和第四谐振器处将副传输线耦合到主传输线。 第一至第四谐振器在衰减曲线中的中心频率的两侧提供峰值衰减点,而在第四谐振器之后的剩余谐振器进一步削弱带通滤波器的衰减特性。 主传输线和副传输线可以由印刷电路板上的带状线形成,而副传输线可以电容耦合到主传输线。 通过将相邻带状线之间的每个间隙的长度设置为所需值,可以自由设置耦合电容。 因此,可以精确地控制峰值衰减点,以提供具有优异特性的带通滤波器。