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    • 4. 发明授权
    • Material flow and air-quality protection, in a particulate-material gun
usable with silica fume
    • 材料流动和空气质量保护,在可用于硅粉的颗粒材料枪中
    • US5645379A
    • 1997-07-08
    • US561788
    • 1995-11-22
    • David J. StonerSteven L. LangPaul E. SulmanDavid C. LawrenceRichard EllisFernando Lopez
    • David J. StonerSteven L. LangPaul E. SulmanDavid C. LawrenceRichard EllisFernando Lopez
    • B01J20060101B65G29/00B65G53/00B65G53/46G05D20060101
    • B65G53/4616B65G53/4641
    • A rotary feed structure for a gunite-conveying machine includes a polymeric body to resist sticking of gunite even if the latter includes silica fume, and even if it has set. The body has chambers in a circle. Preferably the body is urethane, self-bonded to a Ni-hard wear plate to eliminate radial leakage, and the mounting, (typically holes for studs), at least in part, is integral with the plate. A metal axial spacer is preferably next to the plate, but only within the innermost radius of chambers and with a sizable wall thickness. The body is preferably a feed-bowl type, with chambers formed as generally U-shaped pockets. A gunite machine using the polymeric feed structure also has a hopper, delivery tube, support and rotation of the feed structure, compressed-air for expelling the particulate material from the chambers into the tube, and provision for transporting the hopper, tube, body, and other apparatus. Chambers are selectively sealed to the expelling device and delivery tube. Dust emission is controlled by a short fill at the expulsion end of each chamber, and selective venting of residual pressure through the air-inlet end. Remaining dust, collected by a dry bag or atomizer nozzle, is preferably recycled to the bowl. New materials and procedures are used for fabricating the polymeric body.
    • 用于喷砂输送机的旋转进料结构包括聚合物体,以防止喷射剂粘附,即使后者包括硅灰,并且即使已经固化。 身体有一个圆圈的房间。 优选地,主体是聚氨酯,自粘结到Ni-硬质耐磨板以消除径向泄漏,并且至少部分地至少部分地与板形成一体的安装(通常为螺柱的孔)。 金属轴向隔离件优选地在板的旁边,但仅在室的最内半径内并具有相当大的壁厚。 主体优选为进料碗型,其中腔室形成为大致U形的口袋。 使用聚合物进料结构的喷砂机还具有料斗,输送管,进料结构的支撑和旋转,用于将颗粒材料从室排出到管中的压缩空气,以及用于输送料斗,管,主体, 和其他装置。 腔室选择性地密封到排出装置和输送管上。 通过在每个室的排出端的短填充来控制排放物,并且通过进气端选择性排出残余压力。 由干燥袋或雾化器喷嘴收集的剩余灰尘优选地再循环到碗中。 新的材料和程序用于制造聚合物体。
    • 5. 发明授权
    • Low-noise slip ring assembly
    • 低噪音滑环组件
    • US5124608A
    • 1992-06-23
    • US646100
    • 1991-01-25
    • David C. LawrenceSteven L. GrantJohn W. Giles, Jr.
    • David C. LawrenceSteven L. GrantJohn W. Giles, Jr.
    • H01R39/08H01R39/64
    • H01R39/64H01R39/08
    • A slip ring assembly having a rotatable chamber including a shaft rotatably mounted therein. A plurality of slip rings are provided within a ring section of the rotatable chamber and are mounted to the shaft for rotation therewith. The plurality of slip rings for a group of preselected pairs of slip rings. An electrical conductor is connected to each slip ring with each electrical conductor being twisted to at least one adjacent electrical conductor through a central core in the shaft to thereby cancel alternating current due to self-generated voltages. The slip ring assembly also includes a brush assembly having at least one brush support associated with each slip ring with each brush support having brushes extending therefrom in contact with its corresponding slip ring at at least two brush contacts. The brush contacts for each slip are orientated approximately 180 degrees apart. Furthermore, brush contacts for each preselected pair of adjacent slip rings are orientated at an offset of approximately 90 degrees.
    • 一种滑环组件,其具有可旋转地安装在其中的可旋转腔室,所述旋转腔室包括轴。 多个滑环设置在可旋转室的环形部分内并且安装到轴上以与其一起旋转。 用于一组预选的滑环对的多个滑环。 电导体连接到每个滑环,每个电导体通过轴中的中心芯扭转至至少一个相邻的电导体,从而由于自发电压而消除交流电流。 滑环组件还包括具有与每个滑环相关联的至少一个刷子支撑件的刷子组件,每个刷子支撑件具有从其在至少两个刷子触点处与其对应的滑环接触的刷子延伸。 每个滑块的刷子触点定向约180度。 此外,每个预选的一对相邻滑环的刷触点定向在大约90度的偏移处。
    • 6. 发明授权
    • Automatic meter reading system employing common broadcast command channel
    • 自动抄表系统采用通用广播命令通道
    • US06684245B1
    • 2004-01-27
    • US09524200
    • 2000-03-13
    • Kenneth C. ShueyKathyrn J. SmithDavid C. LawrenceArnold W. Bragg
    • Kenneth C. ShueyKathyrn J. SmithDavid C. LawrenceArnold W. Bragg
    • G06F15173
    • G01D4/004G06Q50/06Y02B90/242Y04S20/322Y10S707/99942Y10S707/99943Y10S707/99944
    • An automated meter reading system is provided. The system includes a host server interfaced to a plurality of nodes where each node communicates with a number of utility meters. The system selects a group of noninterfering nodes and uses an RF broadcast from the host server to initiate the reading of meters and the uploading of meter data provided by those meters to the nodes and, ultimately, to the host server. The system also has a number of gateways that communicate with a plurality of nodes, grouped to form sets of noninterfering gateways. In this embodiment, the system selects a set of noninterfering gateways and uses an RF broadcast from the host server to initiate the reading of meters and the uploading of meter data provided by those meters to the nodes and, ultimately, through the gateways to the host server. A method for using an outbound RF channel to automatically read meters is also provided.
    • 提供了一种自动抄表系统。 该系统包括接口到多个节点的主机服务器,其中每个节点与多个公用事业仪表通信。 该系统选择一组非干扰节点,并使用来自主机服务器的RF广播来启动仪表的读取以及由这些仪表提供的仪表数据的上传到节点,最终到主机服务器。 该系统还具有与多个节点进行通信的多个网关,其被分组以形成非干扰网关的集合。 在该实施例中,该系统选择一组非干扰网关,并且使用来自主机服务器的RF广播来启动仪表的读取和由这些仪表提供的仪表数据的上传到节点,并最终通过到主机的网关 服务器。 还提供了一种使用出站RF频道自动读取仪表的方法。