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公开(公告)号：US4846637A
公开(公告)日：1989-07-11
申请号：US218963
申请日：1988-07-14
CPC分类号： F04B43/082 , A61M5/142 , A61M5/16836
摘要： A modular infusion pump system utilizes a positive displacement pump for pumping a known quantity of fluid for each stroke. A plurality of longitudinally spaced apart fixed combs cooperate with a resilient tube to define a known pumping volume. A plurality of movable combs are interdigitated with the fixed combs and are periodically linearly directed to cause the pump volume to be compressed, and therefore the fluid expelled. A rotary to linear drive system is connected with the movable combs and a ratchet system prevents counterrotation when the motor is in the off position. Valves are disposed above and below the pumping unit to appropriately seal off the pumping volume. The valves and the movable combs are operated by means of cams carried by a common shaft.
摘要翻译： 模块化输液泵系统利用正排量泵来泵送每个冲程的已知量的流体。 多个纵向间隔开的固定梳与弹性管配合以限定已知的泵送体积。 多个可动梳子与固定的梳子相互交错，并且周期性地直线引导以使泵体积被压缩，因此流体被排出。 旋转到线性驱动系统与可动梳子连接，棘轮系统防止电动机处于关闭位置时的反向旋转。 阀被布置在泵送单元的上方和下方，以适当地密封泵送体积。 阀和可动梳子通过公共轴承承的凸轮进行操作。
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公开(公告)号：US4781548A
公开(公告)日：1988-11-01
申请号：US36639
申请日：1987-04-10
CPC分类号： A61M5/14228 , A61M5/142 , F04B43/082 , A61M5/16836
摘要： A modular infusion pump system utilizes a positive displacement pump for pumping a known quantity of fluid for each stroke. A plurality of longitudinally spaced apart fixed combs cooperate with a resilient tube to define a known pumping volume. A plurality of movable combs are interdigitated with the fixed combs and are periodically linearly directed to cause the pump volume to be compressed, and therefore the fluid expelled. A rotary to linear drive system is connected with the movable combs and a ratchet system prevents counterrotation when the motor is in the off position. Valves are disposed above and below the pumping unit to appropriately seal off the pumping volume. The valves and the movable combs are operated by means of cams carried by a common shaft.
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公开(公告)号：US5699093A
公开(公告)日：1997-12-16
申请号：US957932
申请日：1992-10-07
申请人： Richard K. Alderson
发明人： Richard K. Alderson
CPC分类号： B41J2/14096
摘要： A head for an ink jet printer has a substrate with a longitudinal dimension extending across the width of the paper to be printed upon. A cavity is formed longitudinally in the substrate and a conduit is provided to supply ink to the cavity. A series of orifices are spaced along a longitudinal surface of the substrate and extend between the surface and the cavity. A plurality of electrodes are provided to generate an arc within each orifice to expel ink there from. A pair of electrodes are associated with each orifice and the electrodes connect to electrical buses that supply bias voltage to the electrodes. The bus connection multiplexes the electrodes enabling relatively few switches to selectively control the expulsion of ink from each orifice. A diaphragm lies against the substrate forming a wall of the cavity and of the orifices. The diaphragm is formed of a resilient material that dampens pressure waves produced within an orifice and the cavity when an arc occurs between electrodes for that orifice.
摘要翻译： 用于喷墨打印机的头部具有纵向尺寸延伸穿过待印刷的纸张的宽度的基底。 在衬底中纵向地形成腔体，并且提供导管以向腔体供应墨水。 一系列孔口沿着基底的纵向表面间隔开并在表面和空腔之间延伸。 提供多个电极以在每个孔内产生电弧以从中排出墨。 一对电极与每个孔相关联，并且电极连接到向电极提供偏置电压的电气总线。 总线连接复用电极，使相对较少的开关能够选择性地控制从每个孔口排出墨水。 隔膜位于衬底上，形成腔和孔的壁。 隔膜由弹性材料形成，当在孔的电极之间发生电弧时，该弹性材料抑制在孔内产生的压力波和腔。
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公开(公告)号：US5939822A
公开(公告)日：1999-08-17
申请号：US914291
申请日：1997-08-18
申请人： Richard K. Alderson
发明人： Richard K. Alderson
CPC分类号： H01J31/123 , H01J29/864 , H01J31/127 , H01J2201/025 , H01J2201/30403 , H01J2329/863 , H01J2329/8635 , H01J2329/864 , H01J2329/8645
摘要： A support structure is provided that enables the use of high-voltage phosphors in field-emission flat panel displays, to maintain the vacuum gap between the cathode and the anode at a constant distance and to prevent distortion of the transparent view screen and backing plate of the display. A number of independent techniques each contributes to the solution of the problem of secondary electron emission. One technique is to alter the geometry of the triple junction of the support structure, the cathode, and the vacuum gap, thereby reducing the electrostatic field created at the triple junction. Reducing the electrostatic field reduces the initial primary electron bombardment originating at the triple junction. Altering the geometry of the support surface with respect to the field lines present at the triple junction also increases the probability that impinging electrons will impact at or nearly at right angles, and will also tend to be directed by the field lines back into the "pocket" created by the shaping of the support structure edge, preventing secondary electrons from escaping and traveling along the structure surface to the anode. In accordance with another technique, the support structure is fluted so as to reduce the average coefficient of secondary electron emission, to trap a proportion of secondary electrons, and to limit the number of hops of other secondary electrons. In another technique, a high resistivity conductive layer is formed at the triple junction in order to reduce the field potential at the triple junction. A similar conductive layer may be formed at the opposite junction of the support structure, the anode, and the vacuum gap. A high resistivity conductive material coated on the surface of the insulating spacer can be used to decrease the charge relaxation time of the insulator, thereby maintaining a constant field potential over the surface of the insulator, reducing areas of high field potential which will tend to accelerate secondary electron emissions. In accordance with other techniques, the support structure is made of a non-porous material and may be coated with a coating having low secondary emission characteristics.
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公开(公告)号：US5655886A
公开(公告)日：1997-08-12
申请号：US469512
申请日：1995-06-06
申请人： Richard K. Alderson
发明人： Richard K. Alderson
摘要： An ion pump permits the continuous evacuation of a small-envelope vacuum chamber while drawing a relatively small amount of power (micro watts). In a preferred embodiment, the present ion pump, due to its small size and integration within the vacuum chamber, enables the device in which the vacuum chamber is incorporated to be portable and to retain its original dimensions.
摘要翻译： 离子泵允许在抽取相对较小量的功率（微瓦）的同时，连续抽真空小真空室。 在优选实施例中，本离子泵由于其小尺寸和集成在真空室内，使得其中结合有真空室的装置可移动并保持其原始尺寸。
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公开(公告)号：US4890984A
公开(公告)日：1990-01-02
申请号：US337877
申请日：1989-04-14
CPC分类号： A61M5/14228 , A61M5/142 , F04B43/082 , A61M5/16836
摘要： A modular infusion pump system utilizes a positive displacement pump for pumping a known quantity of fluid for each stroke. A plurality of longitudinally spaced apart fixed combs cooperate with a resilient tube to define a known pumping volume. A plurality of movable combs are interdigitated with the fixed combs and are periodically linearly directed to cause the pump volume to be compressed, and therefore the fluid expelled. A rotary to linear drive system is connected with the movable combs and a ratchet system prevents counterrotation when the motor is in the off position. Valves are disposed above and below the pumping unit to appropriately seal off the pumping volume. The valves and the movable combs are operated by means of cams carried by a common shaft.
摘要翻译： 模块化输液泵系统利用正排量泵来泵送每个冲程的已知量的流体。 多个纵向间隔开的固定梳与弹性管配合以限定已知的泵送体积。 多个可动梳子与固定的梳子相互交错，并且周期性地直线引导以使泵体积被压缩，因此流体被排出。 旋转到线性驱动系统与可动梳子连接，棘轮系统防止电动机处于关闭位置时的反向旋转。 阀被布置在泵送单元的上方和下方，以适当地密封泵送体积。 阀和可动梳子通过公共轴承承的凸轮进行操作。
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