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公开(公告)号：US4911817A
公开(公告)日：1990-03-27
申请号：US260150
申请日：1988-10-20
申请人： Peter J. Kindlmann
发明人： Peter J. Kindlmann
IPC分类号： G01N27/447
CPC分类号： G01N27/44773 , G01N27/44713
摘要： In an apparatus for electrophoresis, using a support for a gel and a liquid buffer, a plurality of driving electrodes arrayed in spaced relation to one another so as to contact the medium, and a plurality of sensing electrodes arrayed in spaced relation to one another and the driving electrodes so as to contact the medium. Each sensing electrode is preferably radially inward of and paired with a single one of the driving electrodes. Means are provided respectively for providing electrical potentials to be applied to selected ones of the driving electrodes, for applying the provided potentials, for sensing electrical potentials at selected ones of the sensing electrodes, and for adjusting the applied potentials to maintain the sensed potential at a selected value at a sensing electrode of each pair. The apparatus may be programmably controllable so as to enable an electric field to be modulated in amplitude and direction, as a function of time.
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2.发明授权Head top surface measurement utilizing screen parameters in electromagnetic casting 失效使用电磁铸造中的屏幕参数进行头顶表面测量
公开(公告)号：US4470447A
公开(公告)日：1984-09-11
申请号：US374545
申请日：1982-05-03
CPC分类号： B22D11/015
摘要： An apparatus and process for casting metals wherein the molten metal is contained and formed into a desired shape by the application of an electromagnetic field. The apparatus includes an inductor and a non-magnetic shield. Changes in the location or the location of the top surface of the molten metal head are continuously displayed during the casting run by monitoring electrical parameters of the electromagnetic casting system including at least one electrical parameter of the non-magnetic shield.
摘要翻译： 一种用于铸造金属的设备和方法，其中熔融金属通过施加电磁场而被包含并形成为期望的形状。 该装置包括电感器和非磁性屏蔽件。 通过监测包括非磁性屏蔽的至少一个电参数的电磁铸造系统的电参数，在铸造运行期间连续地显示熔融金属头的顶表面的位置或位置的变化。
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公开(公告)号：US4161206A
公开(公告)日：1979-07-17
申请号：US905889
申请日：1978-05-15
申请人： John C. Yarwood , Ik Y. Yun , Derek E. Tyler , Peter J. Kindlmann
发明人： John C. Yarwood , Ik Y. Yun , Derek E. Tyler , Peter J. Kindlmann
CPC分类号： H05B6/067 , B22D11/015
摘要： An apparatus and process for casting metals wherein the molten metal is contained and formed into a desired shape by the application of an electromagnetic field. A control system is utilized to minimize variations in the gap between the molten metal and an inductor which applies the magnetic field. The gap or an electrical parameter related thereto is sensed and used to control the current to the inductor.
摘要翻译： 一种用于铸造金属的设备和方法，其中熔融金属通过施加电磁场而被包含并形成为期望的形状。 使用控制系统来最小化熔融金属和施加磁场的电感器之间的间隙的变化。 检测与之相关的间隙或电参数，并用于控制到电感器的电流。
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公开(公告)号：US4462457A
公开(公告)日：1984-07-31
申请号：US421653
申请日：1982-09-22
CPC分类号： B22D11/015
摘要： An electromagnetic casting process and apparatus utilizing an active transformer-driven copper shield. The shield is actively driven with a voltage out of phase with the voltage in the containment inductor with the result that a bucking current is produced in the shield which is out of phase with the current induced in the shield by the inductor. An active transformer-driven duplex variable impedance shield is also disclosed.
摘要翻译： 一种使用有源变压器驱动铜屏蔽的电磁铸造工艺和装置。 屏蔽被主动驱动，其电压与容纳电感器中的电压异相，结果是在屏蔽中产生与电感器在屏蔽中感应的电流异相的降压电流。 还公开了一种有源变压器驱动的双相可变阻抗屏蔽。
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5.发明授权Process and apparatus for selecting the drive frequencies for individual electromagnetic containment inductors 失效用于选择各个电磁抑制电感器的驱动频率的工艺和设备
公开(公告)号：US4452297A
公开(公告)日：1984-06-05
申请号：US355036
申请日：1982-03-05
CPC分类号： B22D11/015
摘要： A multi-strand process is provided for casting molten materials into ingots of desired shape. The process uses two inductors for receiving the molten material and applying the first and second electromagnetic force fields to form the molten material into the ingots. The inductors are located adjacent each other so that the first and second force fields interact with each other. A first device is associated with one of the inductors for applying a first alternating current at a first desired frequency to an associated inductor to generate the first magnetic force field. A second device is associated with the other of the inductors for applying a second alternating current at a second desired frequency to generate the second magnetic force field. The second frequency is set to a desired value in relation to the first frequency in order to control the first and second resulting containment currents circulating in the molten material. The containment currents are due to the first and second force fields and their interaction with each other. The containment currents each have a frequency above a lower established limit so as to prevent formation of substantial melt stirring and containment instabilities in either of the first or second inductors.
摘要翻译： 提供了一种将熔融材料铸成所需形状的锭料的多股加工方法。 该方法使用两个电感器来接收熔融材料并施加第一和第二电磁场以将熔融材料形成到锭中。 电感器彼此相邻地定位，使得第一和第二力场彼此相互作用。 第一装置与用于将第一所需频率的第一交流电应用于相关联的电感器的一个电感器相关联，以产生第一磁力场。 第二装置与用于以第二所需频率施加第二交流电的另一个电感器相关联，以产生第二磁力场。 相对于第一频率将第二频率设定为期望值，以便控制在熔融材料中循环的第一和第二产生的容纳电流。 容纳电流是由于第一和第二力场以及它们彼此的相互作用。 容纳电流各自具有高于较低建立极限的频率，以便防止在第一或第二电感器中的任一个中形成实质的熔融搅拌和容纳不稳定性。
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公开(公告)号：US4164926A
公开(公告)日：1979-08-21
申请号：US749666
申请日：1976-12-13
申请人： Peter J. Kindlmann
发明人： Peter J. Kindlmann
摘要： An improved spark advance circuit for use in an electronic ignition system for an internal combustion engine in which pulses generated in a pickup synchronized with the engine crankshaft are fed to a circuit for generating a voltage proportional to the desired advance and to a phase locked loop which is adapted to generate, at its output, a ramp synchronized with the input pulses, with the ramp output and proportional voltage supplied to a comparator, the output of which generates firing pulses which are advanced as a function of engine operation for use in the electronic ignition system.
摘要翻译： 一种用于内燃机的电子点火系统的改进的火花提升电路，其中在与发动机曲轴同步的拾取器中产生的脉冲被馈送到用于产生与期望进给成比例的电压的电路和一个锁相环， 适于在其输出处产生与输入脉冲同步的斜坡，其中斜坡输出和比例电压被提供给比较器，比较器的输出产生作为发动机操作的函数而被推进的触发脉冲，用于电子 点火系统。
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公开(公告)号：US5027018A
公开(公告)日：1991-06-25
申请号：US244692
申请日：1988-09-14
IPC分类号： G01N27/447
CPC分类号： G01N27/44713 , G01N27/44773
摘要： A high voltage switch for use in electrophoresis equipment is described. A solid state switch element is triggered by a continuous DC voltage derived from an isolated and rectified AC trigger signal. The gate of solid state element is connected by a low impedancy path to ground when the AC signal ceases.
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8.再颁专利Head top surface measurement utilizing screen parameters in electromagnetic casting 失效使用电磁铸造中的屏幕参数进行头顶表面测量
公开(公告)号：USRE32596E
公开(公告)日：1988-02-09
申请号：US861965
申请日：1986-05-12
IPC分类号： B22D11/01
CPC分类号： B22D11/015
摘要： An apparatus and process for casting metals wherein the molten metal is contained and formed into a desired shape by the application of an electromagnetic field. The apparatus includes an inductor and a non-magnetic shield. Changes in the location or the location of the top surface of the molten metal head are continuously displayed during the casting run by monitoring electrical parameters of the electromagnetic casting system including at least one electrical parameter of the nonmagnetic shield.
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9.发明授权Process and apparatus for electromagnetic casting of multiple strands having individual head control 失效具有单独头部控制的多股线的电磁铸造的工艺和装置
公开(公告)号：US4446909A
公开(公告)日：1984-05-08
申请号：US501941
申请日：1983-06-07
CPC分类号： B22D11/015 , B22D11/16
摘要： A multi-strand apparatus and process for casting molten material into ingots of desired shape. A plurality of structures are provided for receiving and electromagnetically forming the molten material into the desired shape. Each receiving and forming structure includes an inductor for applying a magnetic force field to the molten material. When the inductor is in operation, it is spaced from the molten material by a gap extending from the surface of the molten material to the opposing surface of the inductor. Structure is provided for distributing a current in the inductor to generate the magnetic field. The improvement comprises a device arranged below the inductor for modifying the current distribution in the inductor to minimize the variations in the gap.
摘要翻译： 一种用于将熔融材料浇铸成所需形状的锭料的多股装置和方法。 提供多个结构用于接收和电磁地形成所需形状的熔融材料。 每个接收和形成结构包括用于向熔融材料施加磁力场的电感器。 当电感器工作时，它与熔融材料间隔开一个间隙，从熔融材料的表面延伸到电感器的相对表面。 提供了用于在电感器中分配电流以产生磁场的结构。 该改进包括布置在电感器下方的器件，用于修改电感器中的电流分布以最小化间隙的变化。
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公开(公告)号：US4289946A
公开(公告)日：1981-09-15
申请号：US973475
申请日：1978-12-26
申请人： John C. Yarwood , Ik Y. Yun , Derek E. Tyler , Peter J. Kindlmann
发明人： John C. Yarwood , Ik Y. Yun , Derek E. Tyler , Peter J. Kindlmann
CPC分类号： B22D11/015 , H05B6/067
摘要： An apparatus for casting metals wherein the molten metal is contained and formed into a desired shape by the application of an electromagnetic field. A control system is utilized to minimize variations in the gap between the molten metal and an inductor which applies the magnetic field. The gap or an electrical parameter related thereto is sensed and used to control the current to the inductor.
摘要翻译： 一种用于铸造金属的设备，其中熔融金属通过施加电磁场而被包含并形成为期望的形状。 使用控制系统来最小化熔融金属和施加磁场的电感器之间的间隙的变化。 检测与之相关的间隙或电参数，并用于控制到电感器的电流。
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