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公开(公告)号：US4464164A
公开(公告)日：1984-08-07
申请号：US423381
申请日：1982-09-24
CPC分类号： A61M1/30 , A61M1/303 , A61M1/306 , A61M1/308 , Y10S128/03
摘要： Blood flowrate in a hemodialysis system is controlled in accordance with the relative speeds of two periodically operated blood pumps. Information as to the speeds of the two pumps is converted to flowrate information, which is used to determine the mean flowrate of blood through the system. The mean blood flowrate may be altered by changing the speeds of the blood pumps in a control system which maintains a constant ratio of pump speeds.
摘要翻译： 根据两个周期性操作的血液泵的相对速度来控制血液透析系统中的血流量。 关于两个泵的速度的信息被转换成流量信息，其用于确定通过系统的血液的平均流速。 可以通过改变保持恒定的泵速比的控制系统中的血液泵的速度来改变平均血流量。
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公开(公告)号：US4486189A
公开(公告)日：1984-12-04
申请号：US423376
申请日：1982-09-24
摘要： A hemodialysis system capable of operation in either a single needle mode or a double needle mode includes an arterial blood pump which is the sole blood pump in the system during the double needle mode. For single needle mode operation a venous blood pump is employed to return blood to the patient. A pump speed control adjusts the speed of the arterial pump in the double needle mode, and the speeds of both blood pumps in the single needle mode. A controller continuously operates the arterial pump in the double needle mode, and alternately activates the two pumps in the single needle mode. A module for modifying a commercially available double needle system for operation in either of the two modes is also described.
摘要翻译： 能够以单针模式或双针模式操作的血液透析系统包括在双针模式期间系统中唯一的血液泵的动脉血泵。 对于单针模式操作，使用静脉血泵将血液返回给患者。 泵速度控制器以双针模式调节动脉泵的速度，并以单针模式调节两个血液泵的速度。 控制器以双针模式连续操作动脉泵，并以单针模式交替启动两个泵。 还描述了用于修改用于在两种模式中的任一种中操作的市售双针系统的模块。
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公开(公告)号：US4866881A
公开(公告)日：1989-09-19
申请号：US200534
申请日：1988-05-31
CPC分类号： G01S13/862 , E05F15/43 , E05F15/73 , E05F15/00 , E05F2015/433 , E05Y2400/822 , E05Y2900/132
摘要： A system for controlling the opening and closing operation of a sliding door wherein at least two presence sensing detectors are disposed effective to cast beams in overlapping relation to one another and extending across the pathway of the door to be controlled, and manual means or motion detecting detectors effective to provide for the initiation of movement of the door to open position. Furthermore programmed computer means are included in the system for the controlled sequencing and pulsing of the presence sensing beams in the opening and closing operation of the door.
摘要翻译： 一种用于控制滑动门的打开和关闭操作的系统，其中至少两个存在感测检测器被设置为有效地相互重叠地投射并延伸穿过待控制的门的路径，以及手动装置或运动检测 检测器有效地提供门到开启位置的启动。 此外，系统中还包括编程的计算机装置，用于门的打开和关闭操作中的存在感测波束的受控排序和脉冲。
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公开(公告)号：US06316845B1
公开(公告)日：2001-11-13
申请号：US09434943
申请日：1999-11-05
申请人： Richard A. Morrow
发明人： Richard A. Morrow
IPC分类号： H01F1300
CPC分类号： G01N27/84 , Y10T307/625 , Y10T307/735
摘要： A portable, battery-operated AC electromagnetic yoke for detecting surface defects in ferrous materials by employing an AC magnetic field. The yoke includes a circuit that produces a quasi AC square wave voltage. The resulting AC magnetic field is the required inspection method of common practice and is capable of demagnetizing upon completion of inspection. A first bank of batteries supplies approximately sixty volts positive DC and a second bank of batteries supplies approximately sixty volts negative DC to power transistors that are in electrical communication with the yoke. Logic circuitry is employed to switch the respective banks of batteries on and off to simulate an AC circuit. The logic circuit includes a clock for generating pulses that are fed to a phase splitter circuit and to a delay and pulse shaping circuit. The respective outputs of those circuits are fed to logic gates that are in electrical communication with a voltage level shifting circuit that triggers the power drivers. A plurality of power resistors in conjunction with the inductor in the yoke provides the proper time constant for the magnetizing current to reach a large enough value to provide sufficient magnetic force to detect the surface defects, demagnetize, and lift ten pounds of ferrous material.
摘要翻译： 一种便携式电池供电的交流电磁轭，用于通过采用交流磁场检测黑色金属材料中的表面缺陷。 磁轭包括产生准交流方波电压的电路。 所得到的交流磁场是通常实践所需的检查方法，并且在完成检查时能够退磁。 第一组电池提供大约六十伏的正直流电，第二组电池向与磁轭电连通的功率晶体管提供大约六十伏的负DC。 采用逻辑电路来切换相应的电池组，以模拟AC电路。 逻辑电路包括用于产生馈送到相分离器电路和延迟脉冲整形电路的脉冲的时钟。 这些电路的相应输出被馈送到与触发电源驱动器的电压电平移位电路电连通的逻辑门。 多个功率电阻器与磁轭中的电感器一起提供适当的时间常数，以使磁化电流达到足够大的值，以提供足够的磁力来检测表面缺陷，去磁和提升10磅的铁质材料。
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公开(公告)号：US4090198A
公开(公告)日：1978-05-16
申请号：US394648
申请日：1964-08-31
CPC分类号： G01S13/756 , H01Q15/23 , H01Q3/44
摘要： 1. A reflectance modulator exhibiting an omni-azimuttal reflectance pattern comprising a microwave lens for focusing electromagnetic energy, a plurality of reflector means positioned on a focal surface of said lens and including a gaseous plasma, means for sequentially controlling the ionization level of said plasma to modulate the reflectance of said energy.
摘要翻译： 1.一种反射调制器，其具有包括用于聚焦电磁能的微波透镜的全向平均反射率图案，位于所述透镜的焦点表面上并包括气态等离子体的多个反射器装置，用于依次控制所述等离子体的电离水平的装置 以调制所述能量的反射率。
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