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    • 24. 发明授权
    • Pneumatic valve and regulator
    • 气动阀和调节器
    • US5755213A
    • 1998-05-26
    • US506183
    • 1995-07-25
    • William M. Gardner, Jr.Adam C. GardnerDavid L. SmithRaymond S. Gaston
    • William M. Gardner, Jr.Adam C. GardnerDavid L. SmithRaymond S. Gaston
    • F41B11/32G05D16/10F41B11/00
    • F41B11/724G05D16/10Y10T137/1714Y10T137/3786Y10T137/7737Y10T137/7826
    • A pneumatic valve and regulator, and more particularly to a pneumatic valve and regulator used in a compressed gas powered gun system which is designed to project a fragile liquid-containing spherical unit which bursts upon impact with the intended target. The regulator possesses a pressure balancing device, a temperature compensating device, and relief valve features. The temperature compensator of the temperature compensating device is made of a synthetic compound material which expands and contracts at a rate that equals but is inverse to the rate of change caused by changes in the modulus of elasticity of a helical compression spring caused by a temperature differential. The valve possesses a seal made of pressure-activated material, the outer diameter of the seal is mechanically captured, the inner diameter of the seal is not constrained from moving into the cavity. The application of pressure initiates flow characteristics of the seal at the interface of the inner diameter of the seal and the outer diameter of the poppet. This sealing technique has inherent lubricity, is self-healing, is non-temperature sensitive, and is compatible with all noble gases used.
    • 一种气动阀和调节器,更具体地涉及一种用于压缩气体动力枪系统中的气动阀和调节器,其被设计成投射一个脆弱的含液体的球形单元,该单元在与预期目标碰撞时爆裂。 调压器具有压力平衡装置,温度补偿装置和安全阀特征。 温度补偿装置的温度补偿器由合成复合材料制成,该合成复合材料以等于但与由温度差引起的螺旋压缩弹簧的弹性模量变化引起的变化率相反的速率膨胀和收缩 。 阀具有由压力激活材料制成的密封件,机械地捕获密封件的外径,密封件的内径不受限于不进入腔体。 压力的施加启动密封件在密封件的内径和提升阀的外径的界面处的流动特性。 这种密封技术具有固有的润滑性,是自愈性,不受温度敏感,并且与所使用的所有惰性气体兼容。
    • 25. 发明授权
    • Speaker system with reconfigurable, high-frequency dispersion pattern
    • 扬声器系统具有可重新配置的高频色散模式
    • US5751821A
    • 1998-05-12
    • US141369
    • 1993-10-28
    • David L. Smith
    • David L. Smith
    • H04R5/02H04R5/00
    • H04R5/02
    • The present invention features a high-quality audio frequency loudspeaker system utilizing an array of tweeters placed in vertical alignment along an axis. The tweeter array, containing a plurality of tweeters, is mounted on a tweeter baffle board which may be reoriented by a user, so that the speaker system may be positioned in either a horizontal or a vertical orientation relative to the floor or other supporting surface. Reorientation of the tweeter array, in conjunction with other novel features, allows the speaker system to meet horizontal and vertical radiation pattern specifications for home theaters.
    • 本发明的特征在于使用沿轴线垂直排列的高频扬声器阵列的高品质音频扬声器系统。 包含多个高音扬声器的高音扬声器阵列安装在可由用户重新定向的高音扬声器挡板上,使得扬声器系统可相对于地板或其他支撑表面定位在水平或垂直方向。 高音扬声器阵列的重新定向以及其他新颖特征使得扬声器系统能够满足家庭影院的水平和垂直辐射图形规格。
    • 26. 发明授权
    • Cartridge for dispensing toner concentrate
    • 用于分配调色剂浓缩物的墨盒
    • US5435461A
    • 1995-07-25
    • US285387
    • 1994-08-03
    • David L. SmithDavid J. Arcaro
    • David L. SmithDavid J. Arcaro
    • G01F11/14G01F11/16G01F11/18G03G15/10B67D5/22B65D37/00G01F11/00
    • G01F11/14G01F11/16G01F11/18G03G15/104Y10S222/01
    • A cartridge for dispensing metered amounts of liquid electrophotography toner concentrate. The cartridge comprises first and second endcaps within a hollow of the cartridge for confining the concentrate; a tube rigidly attached to the first endcap having a passage therein for allowing expulsion of the concentrate when pressure is applied to the concentrate by the first endcap; and a first and second control lip rigidly attached to the tube for metering the expulsion of concentrate out through the passage. In an alternate embodiment, the first endcap is a diaphragm whereby the bowing capacity of the diaphragm meters a controlled amount of concentrate out through the passage. A pressurized medium or vacuum acts upon the first endcap to effectuate a pumping of the concentrate out through the passage for mixing with a carrier fluid.
    • 用于分配计量量的液体电子照相调色剂浓缩物的盒。 墨盒包括用于限制浓缩物的墨盒的中空部内的第一和第二端盖; 刚性地附接到第一端盖的管,其中具有通道,用于当压力通过第一端盖施加到浓缩物时允许浓缩物排出; 以及刚性地连接到管上用于计量通过通道排出浓缩物的第一和第二控制唇缘。 在替代实施例中,第一端盖是隔膜,由此隔膜的弯曲能力通过通道计量控制量的浓缩物。 加压介质或真空器作用在第一端盖上以实现浓缩物通过通道泵送以与载体流体混合。
    • 27. 发明授权
    • Method for grinding
    • 研磨方法
    • US4150513A
    • 1979-04-24
    • US714405
    • 1976-08-16
    • David L. SmithNorman J. Scherr, Jr.
    • David L. SmithNorman J. Scherr, Jr.
    • B23Q15/02B24B47/20B24B49/04B24B49/16
    • B24B47/20B23Q15/02B24B49/04
    • A method and apparatus for grinding for use with a grinding machine of the type comprising a circular grinding wheel adapted to rotate about its axis and a spindle adapted to hold a workpiece at a position radially spaced from the grinding wheel wherein the workpiece deflects away from the grinding wheel, and vice versa, as the grinding wheel is moved into the workpiece. The grinding machine includes means for advancing the grinding wheel into the workpiece, such as a threaded shaft and boss arrangement, and gauge means contact the workpiece on the spindle and provide an electrical output signal representative of the diameter of the workpiece. The advancing means is controlled by a microprocessor which, at the initiation of a grinding operation, rapidly advances the grinding wheel into contact with the workpiece a sufficient lineal amount to compensate for the total deflection of the workpiece, grinding wheel, and associated components. Thereafter the microprocessor advances the grinding wheel into the workpiece at a predetermined lineal rate. The output from the gauge means is coupled to the input of the microprocessor so that when the diameter of the workpiece attains predetermined dimension, the microprocessor controls the adavncing means to rapidly retract the grinding wheel from the workpiece at a third lineal rate. Both the first and the third lineal rates are greater than the mean second lineal rate.
    • 一种用于研磨的方法和装置,所述研磨机包括适于围绕其轴线旋转的圆形砂轮,以及适于将工件保持在与所述砂轮径向间隔开的位置的主轴,其中所述工件偏离所述砂轮 砂轮移动到工件中,反之亦然。 研磨机包括用于将砂轮推进到工件中的装置,例如螺纹轴和凸台装置,并且量规装置将主轴上的工件接触并提供表示工件直径的电输出信号。 推进装置由微处理器控制,微处理器在研磨操作开始时迅速地将砂轮推进到与工件接触的足够的线性量以补偿工件,砂轮和相关部件的总挠度。 此后,微处理器以预定的线速将砂轮推入工件。 仪表装置的输出端耦合到微处理器的输入端,使得当工件的直径达到预定的尺寸时,微处理器控制加固装置以三线速率从工件快速地收回砂轮。 第一和第三个线性率均高于平均第二线性率。
    • 29. 发明授权
    • Rooftop access system
    • 屋顶通道系统
    • US08307590B2
    • 2012-11-13
    • US11270697
    • 2005-11-09
    • David L. Smith
    • David L. Smith
    • E04B7/00
    • E04D13/1407H01R25/006
    • A roof access system mounted on a roof having a roof support member, said device being adapted for use with an internal component and an external component. The device includes an enclosure and an access panel providing resealable access to a central aperture located through said enclosure, a channel extending from said aperture to the underlying roof support member and being adapted for receiving tubing extending from said internal component to said connection point. A second tubing section extends from the external component to said connection point, said internal component being in communication with said external component.
    • 一种安装在具有屋顶支撑构件的屋顶上的屋顶通道系统,所述装置适于与内部部件和外部部件一起使用。 该装置包括一个外壳和一个检修面板,提供可通过所述外壳定位的中心孔的可重新密封的通道,从所述孔延伸到下面的屋顶支撑构件并适于接收从所述内部部件延伸到所述连接点的管道的通道。 第二管段从外部部件延伸到所述连接点,所述内部部件与所述外部部件连通。