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103 条记录 (耗时 0.024 秒)

    Porous-wall compact laser diffuser
    51.
    发明授权
    Porous-wall compact laser diffuser 失效
    多孔壁紧凑型激光扩散器

    公开(公告)号：US4487366A

    公开(公告)日：1984-12-11

    申请号：US523509

    申请日：1983-08-15

    申请人： James A. Davis ,  Lamar F. Moon

    发明人： James A. Davis ,  Lamar F. Moon

    IPC分类号： H01S3/0953 ,  H01S3/08

    CPC分类号： H01S3/0953 ,  Y10S415/914

    摘要： A porous-wall compact diffuser designed for chemical laser applications. The laminar boundary layer in the diffuser is removed through the porous wall by suction provided by a chemical pump concept, thereby stabilizing the normal shock wave in the supersonic flow channel at the juncture with the wide-angle subsonic diffuser section.

    摘要翻译： 设计用于化学激光应用的多孔壁紧凑型扩散器。 扩散器中的层流边界层通过由化学泵概念提供的抽吸通过多孔壁去除，从而在与广角亚音速扩散器部分的接合处稳定超音速流动通道中的正常冲击波。

    Rubber compositions and articles thereof having improved metal adhesion and metal adhesion retention
    52.
    发明授权
    Rubber compositions and articles thereof having improved metal adhesion and metal adhesion retention 失效
    橡胶组合物及其制品具有改进的金属粘附性和金属粘合保持性

    公开(公告)号：US4480066A

    公开(公告)日：1984-10-30

    申请号：US524496

    申请日：1983-08-18

    申请人： James A. Davis ,  Robert C. Koch

    发明人： James A. Davis ,  Robert C. Koch

    IPC分类号： C08L7/00 ,  C08J5/10 ,  C08K7/00 ,  C08L1/00 ,  C08L15/02 ,  C08L21/00 ,  C08L23/00 ,  C08L27/00 ,  C08L101/00 ,  C08L9/00 ,  C08L9/06

    CPC分类号： C08J5/10 ,  C08L21/00 ,  C08J2321/00

    摘要： Vulcanizable rubber compositions and articles such as tires having improved metal adhesion and metal adhesion retention to brass and brass-plated metallic reinforcement. The improvement comprises substituting at least about 10.0 parts by weight of a halogenated rubber for non-halogenated rubber present in the vulcanizable rubber composition. The non-halogenated rubber can be natural or synthetic or blends thereof. A method for improving the metal adhesion and metal adhesion retention between a vulcanizable rubber and brass or brass-plated metallic reinforcement includes the steps of blending at least about 10.0 parts by weight of a halogenated rubber with up to about 90.0 parts by weight of a vulcanizable rubber essentially free of other halogenated rubber and curing the blend of rubbers with the brass or brass-plated metallic reinforcement embedded therein.

    摘要翻译： 可硫化的橡胶组合物和诸如轮胎的制品，其具有改善的金属粘合性和对黄铜的金属粘合保持性以及镀黄铜的金属增强材料。 该改进包括将至少约10.0重量份的卤化橡胶代替在可硫化橡胶组合物中的非卤化橡胶中。 非卤化橡胶可以是天然的或合成的或它们的共混物。 一种用于改善可硫化橡胶和黄铜或镀黄铜金属增强材料之间的金属粘合性和金属粘合保持性的方法包括以下步骤：将至少约10.0重量份的卤化橡胶与至多约90.0重量份的可硫化橡胶 橡胶基本上不含其他卤化橡胶，并将橡胶与黄铜或黄铜镀金属强化剂混合固化。

    Control circuitry for high voltage solid-state switches
    54.
    发明授权
    Control circuitry for high voltage solid-state switches 失效
    高压固态开关的控制电路

    公开(公告)号：US4345163A

    公开(公告)日：1982-08-17

    申请号：US150184

    申请日：1980-05-15

    申请人： James A. Davis ,  William F. MacPherson ,  Harry E. Mussman ,  Peter W. Shackle

    发明人： James A. Davis ,  William F. MacPherson ,  Harry E. Mussman ,  Peter W. Shackle

    IPC分类号： H03K17/567 ,  H03K17/60

    CPC分类号： H03K17/567

    摘要： To switch a first gated diode switch (GDS1) to the "OFF" state requires a voltage applied to the gate which is more positive than that of the anode or cathode and a sourcing of current into the gate of substantially the same order of magnitude as flows between the anode and cathode of the first switch. Control circuitry, which uses a second gated diode switch (GDSC) coupled by the cathode to the gate of the first switch (GDS1), is used to control the state of the first switch (GDS1). The control circuitry comprises a first branch circuit coupled to the gate of GDSC and to a first potential source +V1, a second branch circuit coupled to the anode of GDSC and to a second potential source +V2, and a third branch circuit coupled to the anode of GDSC and to a third potential source +V3. The first branch circuit is connected to the gate of the second switch (GDSC) and controls the state thereof. The second branch circuit maintains the state of the load switch (GDS1) and is adapted to supply up to a preselected maximum amount of current into the anode of GDSC and then to automatically reduce the amount of supplied current substantially. The third branch circuit is used to provide a surge of current during a current break operation to turn GDS1 to an OFF state.

    摘要翻译： 要将第一门控二极管开关（GDS1）切换到“OFF”状态，需要施加到栅极的电压，该电压比阳极或阴极的正电压更大，并且电流进入栅极的电流基本上与数量级大致相同 在第一开关的阳极和阴极之间流动。 使用由阴极耦合到第一开关（GDS1）的栅极的第二门控二极管开关（GDSC）的控制电路来控制第一开关（GDS1）的状态。 控制电路包括耦合到GDSC的栅极和耦合到第一电位源+ V1的第一分支电路，耦合到GDSC的阳极和第二电位源+ V2的第二支路，以及耦合到 GDSC的阳极和第三电位源+ V3。 第一分支电路连接到第二开关（GDSC）的栅极并控制其状态。 第二分支电路保持负载开关（GDS1）的状态，并且适于提供预先选定的最大量的电流进入GDSC的阳极，然后自动减小供电电流量。 第三分支电路用于在当前断开操作期间提供电流浪涌以将GDS1转变为截止状态。

    Engine roughness sensor
    55.
    发明授权
    Engine roughness sensor 失效
    发动机粗糙度传感器

    公开(公告)号：US4337647A

    公开(公告)日：1982-07-06

    申请号：US101396

    申请日：1979-12-07

    申请人： Charles R. Radcliffe ,  James A. Davis

    发明人： Charles R. Radcliffe ,  James A. Davis

    IPC分类号： G01M15/11 ,  G01M15/00

    CPC分类号： G01M15/11

    摘要： An engine roughness sensor for generating speed normalized digital roughness signals indicative of the variations in magnitude between successive torque impulses imparted to the engine's crankshaft by measuring the period or time it takes the crankshaft to rotate through the same angle for each torque impulse is disclosed herein. The digital roughness signal is normalized as a function of engine speed by dividing the measured magnitude of each torque impulse by a signal indicative of the engine speed to reduce the magnitude of operator induced variations in the generated roughness signals. The disclosed engine roughness sensor generates a second difference roughness signal which is the difference between the sequentially generated roughness signals.

    摘要翻译： 这里公开了一种发动机粗糙度传感器，用于产生速度归一化的数字粗糙度信号，其表示通过测量曲轴通过相同的角度旋转每个扭矩脉冲所花费的时间或时间，来表示施加到发动机曲轴的连续扭矩脉冲之间的幅度变化。 数字粗糙度信号通过将每个转矩脉冲的测量幅度除以指示发动机转速的信号来减小操作者产生的粗糙度信号的变化幅度，将发动机转速的函数归一化为发动机转速的函数。 所公开的发动机粗糙度传感器产生作为顺序产生的粗糙度信号之间的差的第二差分粗糙度信号。

    Naturally occurring thermoplastic resins as a substitute for various petroleum-derived materials in rubber stocks
    56.
    发明授权
    Naturally occurring thermoplastic resins as a substitute for various petroleum-derived materials in rubber stocks 失效
    天然存在的热塑性树脂作为橡胶原料中各种石油衍生物的替代品

    公开(公告)号：US4324710A

    公开(公告)日：1982-04-13

    申请号：US193198

    申请日：1980-10-02

    申请人： James A. Davis ,  Robert C. Koch

    发明人： James A. Davis ,  Robert C. Koch

    IPC分类号： C08L7/00 ,  C08L1/00 ,  C08L21/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00 ,  C08L93/04 ,  C09F1/00

    CPC分类号： C08L7/00 ,  C08L21/00 ,  C08K5/09 ,  C08K5/098 ,  C08L93/00 ,  C08L93/04 ,  Y10T152/10495

    摘要： Natural occurring thermoplastic resins are used as a substitute for process oils and/or hydrocarbon resins, as well as for tackifiers, softeners, extenders, processing aids, and cure retarders, in rubber stocks, as for example, a rubber skim stock used in making a tire. The resins, which are derived from crude wood rosin, are high melting thermoplastic resins having carboxylic acid groups and are insoluble in aliphatic hydrocarbons. The source of the natural occurring resins is in ample supply as they are obtained from pine trees grown in North America. A specific type of thermoplastic resin is Vinsol, a registered trademark of Hercules Corporation.

    摘要翻译： 天然存在的热塑性树脂用作工艺油和/或烃树脂的替代物，以及用于橡胶原料中的增粘剂，软化剂，​​增量剂，加工助剂和固化缓凝剂的替代物，例如用于制备的橡胶脱脂剂 轮胎 衍生自粗木松香的树脂是具有羧酸基并且不溶于脂族烃的高熔点热塑性树脂。 自然发生的树脂的来源是充足的供应，因为它们是从北美生长的松树获得的。 特定类型的热塑性树脂是Hercules Corporation的注册商标Vinsol。

    Direct diode contact high power fiber optic laser system
    59.
    发明授权
    Direct diode contact high power fiber optic laser system 有权
    直接二极管接触大功率光纤激光系统

    公开(公告)号：US07215859B2

    公开(公告)日：2007-05-08

    申请号：US10887373

    申请日：2004-07-06

    申请人： James A. Davis

    发明人： James A. Davis

    IPC分类号： G02B6/02

    CPC分类号： H01S3/06704 ,  G02B6/2852 ,  H01S3/0407 ,  H01S3/06729 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094015 ,  H01S3/094019 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/2383 ,  H01S5/4031

    摘要： Embodiments include a fiber optic laser system having at least one optical waveguide with a laseable core and a pump cladding disposed adjacent the lasing core. A source of electromagnetic pumping energy is disposed adjacent to the optical waveguide and has an emission axis that is directed toward the optical waveguide. An optically reflective surface is disposed towards the optical waveguide and may be configured as an enclosure disposed about at least a portion of the optical waveguide. An index matching material may be disposed within the enclosure and in contact with at least a portion of the optical waveguide.

    摘要翻译： 实施例包括光纤激光器系统，其具有至少一个具有可插芯的光波导和邻近激光芯设置的泵包层​​。 电磁抽吸能量源被布置成与光波导相邻，并具有指向光波导的发射轴。 光学反射表面朝向光波导设置，并且可以被配置为围绕光波导的至少一部分设置的外壳。 折射率匹配材料可以设置在外壳内并与光波导的至少一部分接触。

    Aquifer remediation barrier for removal of inorganic contaminants
    60.
    发明授权
    Aquifer remediation barrier for removal of inorganic contaminants 失效
    用于去除无机污染物的含水层修复屏障

    公开(公告)号：US06428695B1

    公开(公告)日：2002-08-06

    申请号：US09791765

    申请日：2001-02-26

    申请人： David L. Naftz ,  James A. Davis

    发明人： David L. Naftz ,  James A. Davis

    IPC分类号： C02F162

    CPC分类号： B09C1/002 ,  C02F1/281 ,  C02F1/283 ,  C02F2101/20 ,  C02F2103/06 ,  Y10S210/912

    摘要： A permeable barrier for decontaminating groundwater having two distinct components for increasing contaminant removal. Preferably, the barrier material is a mixture or distinct layers of bone-char phosphate material and iron oxide pellets. The barrier material can be incorporated as part of a shallow trenching decontamination system, or incorporated in a non-pumping well, or array of non-pumping wells, as part of a deep underground decontamination system. The system can be used for removing, among other things, a radionuclide, such as uranium, from water.

    摘要翻译： 用于净化地下水的可渗透屏障，具有两个不同的组分，用于增加污染物去除。 优选地，阻挡材料是骨 - 焦磷酸盐材料和氧化铁颗粒的混合物或不同层。 阻隔材料可以作为浅挖沟去污系统的一部分而被掺入，或作为深层地下净化系统的一部分并入非抽水井或非抽水井阵列中。 该系统可用于从水中去除诸如铀的放射性核素。