Controllable variable magnetic field apparatus for flow control of molten steel in a casting mold

    公开(公告)号:US06502627B2

    公开(公告)日:2003-01-07

    申请号:US09955579

    申请日:2001-09-17

    CPC classification number: B22D11/115

    Abstract: An apparatus for providing a magnetic field in a casting mold to slow and redirect in a controllable fashion the flow of liquid steel exiting from a submerged entry nozzle into the casting mold uses selectable removable ferromagnetic and non-magnetic laminar elements stackable on the ends of core fingers in the vicinity of the poles of an electromagnetic yoke positioned adjacent the mold face. By selecting the type and location of the stackable elements on the ends of the fingers, one can modify the properties of the magnetic field permeating the interior of the mold. Optionally, independent field coils may be provided for energizing selected portions of the magnetic field core structure to provide further magnetic field control without having to remove and replace laminar elements.

    Controllable variable magnetic field apparatus for flow control of
molten steel in a casting mold
    3.
    发明授权
    Controllable variable magnetic field apparatus for flow control of molten steel in a casting mold 失效
    用于浇铸模具中钢水流量控制的可变磁场设备

    公开(公告)号:US6006822A

    公开(公告)日:1999-12-28

    申请号:US108466

    申请日:1998-07-01

    CPC classification number: B22D11/115

    Abstract: An apparatus for providing a magnetic field in a casting mold to slow and redirect in a controllable fashion the flow of liquid steel exiting a submerged entry nozzle in the casting mold using removable laminar elements arrangeable in a horizontal series of vertical stacked arrays in association with corresponding side-by-side laminar constituents of the magnetic field core, or independent field coils for energizing each laminar portion of the magnetic field core, or both. The removable elements are preferably stackable rectangular parallelepiped plates together forming selectably a portion or all of the poles of the core as they extend into proximity with the transverse mold sides at selected locations.

    Abstract translation: 一种用于在铸模中提供磁场的装置,以缓冲并以可控的方式重新定向流出铸模中的浸没入口喷嘴的液态钢,其中可移动的层状元件可排列在水平的垂直堆叠阵列中,与相应的 磁场磁芯的并列层状结构或用于激励磁场磁芯的每个层状部分的独立的励磁线圈,或两者。 可移动元件优选地是可堆叠的长方体平板六面体板,它们一起形成了芯部的一部分或全部的极点,当它们在选定位置处延伸到横向模具侧面附近时。

    Devices, systems and methods for testing of gas detectors
    4.
    发明授权
    Devices, systems and methods for testing of gas detectors 有权
    用于气体探测器测试的设备,系统和方法

    公开(公告)号:US07530255B2

    公开(公告)日:2009-05-12

    申请号:US11171861

    申请日:2005-06-30

    CPC classification number: G01N33/0006

    Abstract: A testing module for use with a gas detector, includes a plurality of gas inlets and outlets, each outlet being in fluid connection with one of the inlets. Each of the outlets is adapted to mate with and form a fluid connection with one of the inlets of a second like testing module. Gases can then flow from the outlets of the testing module into the inlets of the second like testing module. A gas container module for use with a gas container, includes a plurality of gas inlets and outlets, each inlet being in fluid connection with one of the outlets. Each of the inlets is adapted to mate with and form a fluid connection with one of a the outlets on a second like gas container module. Gases can then flow from the outlets of the second like gas container module into the inlets of the gas container module.

    Abstract translation: 用于气体检测器的测试模块包括多个气体入口和出口,每个出口与入口之一流体连接。 每个出口适于与第二类似的测试模块的一个入口配合并形成流体连接。 然后,气体可以从测试模块的出口流入第二个类似的测试模块的入口。 一种与气体容器一起使用的气体容器模块,包括多个气体入口和出口,每个入口与其中一个出口流体连通。 每个入口适于与第二类似气体容器模块上的出口之一配合并形成流体连接。 然后,气体可以从第二类似气体容器模块的出口流入气体容器模块的入口。

    Passive occupant restraint system
    6.
    发明授权
    Passive occupant restraint system 失效
    被动乘员约束系统

    公开(公告)号:US4203618A

    公开(公告)日:1980-05-20

    申请号:US945309

    申请日:1978-09-25

    CPC classification number: B60R22/06

    Abstract: A fixed length of belt has an outboard end attached to the door and an inboard end attached to the vehicle body forwardly of the seat. A track extends longitudinally inboard the seat and mounts a belt carriage which slidably receives the belt intermediate the inboard and outboard ends. Opening movement of the door causes the outboard end of the belt to be moved outwardly and forwardly so that sliding movement of the belt through the belt carriage causes forward movement of the belt carriage to stow the belt forwardly of the seat. A spring retracts the carriage toward the seat to establish the belt in a rearward restraining position when the door is closed. In the preferred embodiment, the belt having its inboard end mounted on the vehicle body forwardly of the seat has its outboard end attached high on the vehicle door to provide a diagonal shoulder belt. A lap belt has an outboard end attached low on the vehicle door and an inboard end mounted inboard the seat. A retractor is associated with at least one end of the lap belt to extend the length of the lap belt during door opening movement. The lap belt is slidably received by the belt carriage so that forward movement of the carriage by the shoulder belt during door opening movement also unwinds lap belt from the retractor and moves the inboard portion of the lap belt to a stowed position forwardly of the occupant.

    Abstract translation: 带的固定长度具有附接到门的外侧端部和在座椅前方附接到车身的内侧端部。 轨道纵向延伸到座椅内并安装一个皮带托架,该皮带托架可滑动地容纳带内侧和外侧端部的中间带。 门的打开运动导致皮带的外侧端部向外和向前移动,使得皮带穿过皮带托架的滑动运动导致皮带托架的向前运动以将皮带向前收放在座椅上。 当门关闭时,弹簧将托架朝向座椅缩回以将带设置在向后限制位置。 在优选实施例中,其内侧端部安装在座椅前方的车体上的带的外侧端部高度附接在车门上以提供对角肩带。 腰带的外侧端部附着在车门上,内侧端部安装在座椅的内侧。 卷收器与腰带的至少一端相关联,以在开门运动期间延伸腰带的长度。 所述腰带可滑动地被所述皮带托架接收,使得所述滑架在所述开门运动期间由所述肩带向前运动,还使所述卷收器从所述牵开器解开,并将所述腰带的内侧部分移动到所述乘员的前方的收纳位置。

    Controllable variable magnetic field apparatus for flow control of molten steel in a casting mold

    公开(公告)号:US06341642B1

    公开(公告)日:2002-01-29

    申请号:US09404902

    申请日:1999-09-24

    CPC classification number: B22D11/115

    Abstract: An apparatus for providing a magnetic field in a casting mold to slow and redirect in a controllable fashion the flow of liquid steel exiting from a submerged entry nozzle into the casting mold uses selectable removable ferromagnetic and non-magnetic laminar elements stackable on the ends of core fingers in the vicinity of the poles of an electromagnetic yoke positioned adjacent the mold face. By selecting the type and location of the stackable elements on the ends of the fingers, one can modify the properties of the magnetic field permeating the interior of the mold. Optionally, independent field coils may be provided for energizing selected portions of the magnetic field core structure to provide further magnetic field control without having to remove and replace laminar elements.

    System and method for pump control and fault detection
    9.
    发明授权
    System and method for pump control and fault detection 失效
    泵控制和故障检测的系统和方法

    公开(公告)号:US6092992A

    公开(公告)日:2000-07-25

    申请号:US736466

    申请日:1996-10-24

    CPC classification number: F04B49/06 F04B2203/0202 F04B2203/0209

    Abstract: The present invention provides a system and a method for controlling and detecting faults in a pump system for use in a gas detection device. The system comprises a power source and a switch in operative or electrical connection with the power source. The system further comprises a pump motor in operative connection with the switch such that the pump motor receives energy from the power source when the switch in a first state, and the pump motor does not receive energy from the power source when the switch in a second state. The system preferably also comprises regeneration circuitry in operative connection with the pump motor. The regeneration circuitry operates to redirect energy produced from momentum of the pump motor while the switch is in the second state back to the pump motor. Transmitting circuitry is preferably provided to transmit a motor signal proportional to the speed of the pump motor during the second state of the switch. Preferably, the switch is modulated between the first state and the second state using a processing or control unit such as a microprocessor. The processing unit preferably controls the modulation of switch in response to the motor signal received from the transmitting circuitry.

    Abstract translation: 本发明提供一种用于控制和检测用于气体检测装置的泵系统中的故障的系统和方法。 该系统包括电源和与电源工作或电连接的开关。 该系统还包括与开关操作连接的泵马达,使得当开关处于第一状态时,泵马达接收来自电源的能量,并且当电动机处于第二状态时,该泵马达不接收来自电源的能量 州。 该系统还优选地还包括与泵马达有效连接的再生电路。 再生电路用于将开关处于第二状态的泵马达的转向由泵马达的动量产生的能量重新定向。 优选地,提供传输电路以在开关的第二状态期间传输与泵电动机的速度成比例的电动机信号。 优选地,使用诸如微处理器的处理或控制单元在第一状态和第二状态之间调制开关。 处理单元优选地响应于从发送电路接收的电动机信号来控制开关的调制。

    Engine balancing system having at least one pivoting counterbalance
weight
    10.
    发明授权
    Engine balancing system having at least one pivoting counterbalance weight 失效
    具有至少一个枢转平衡重的发动机平衡系统

    公开(公告)号:US5282397A

    公开(公告)日:1994-02-01

    申请号:US855059

    申请日:1992-03-19

    Abstract: The engine balancing system preferably has two pivoting counterbalance weights connected to eccentric journals on the crankshaft via their respective link arms. The use of the two pivoting weights and the particular geometrical relationships between the balancing system components enable the balancing system to substantially mimic and oppose the non-sinusoidal piston forces. Several methods of balancing the non-sinusoidal piston forces are disclosed. In a first method, the centers of gravity of the respective counterbalance weights are moved at non-sinusoidal angular accelerations. These angular accelerations are greater when the piston is near its Top Dead Center position than when the piston is near its Bottom Dead Center position to yield higher balancing forces when the piston is near Top Dead Center. In a second method, the centers of gravity move through arcs which are substantially parallel to the piston axis when the piston is near its Top Dead Center position, and move in directions less parallel to the piston axis when the piston is near its Bottom Dead Center position. The movement of the centers of gravity parallel to but in the opposite direction from the moving piston when the piston is near Top Dead Center results in greater balancing forces when the piston is near Top Dead Center. The invention also includes a combined method of balancing the non-sinusoidal piston forces. In this combined method, the angular accelerations of the centers of gravity vary as in the first method, and the directions of movement of the centers of gravity vary as in the second method.

    Abstract translation: 发动机平衡系统优选地具有通过其相应的连杆臂连接到曲轴上的偏心轴颈的两个枢转平衡重块。 使用两个枢转重物和平衡系统组件之间的特定几何关系使得平衡系统能够基本上模拟和对抗非正弦活塞力。 公开了平衡非正弦活塞力的几种方法。 在第一种方法中,各个平衡重重心的重心以非正弦角加速度移动。 当活塞接近上死点位置时,这些角加速度大于当活塞接近底死中心位置时产生更大的平衡力,当活塞靠近上止点时。 在第二种方法中,当活塞靠近其上死点位置时,重心移动通过弧线,该弧线基本上平行于活塞轴线,并且当活塞靠近其底部死点时,其运动方向与活塞轴线平行 位置。 当活塞靠近上死点时,重心平行于活动活塞的相反方向的运动导致当活塞靠近上止点时更大的平衡力。 本发明还包括平衡非正弦活塞力的组合方法。 在这种组合方法中,重心的角加速度与第一种方法一样变化,并且重心的运动方向如第二种方法那样变化。

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