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105 条记录 (耗时 0.051 秒)

    Nozzle members, compositions and methods for micro-fluid ejection heads
    81.
    发明申请
    Nozzle members, compositions and methods for micro-fluid ejection heads 有权
    用于微流体喷射头的喷嘴构件，组合物和方法

    公开(公告)号：US20070076053A1

    公开(公告)日：2007-04-05

    申请号：US11239799

    申请日：2005-09-30

    申请人： Brian Hart ,  Gary Holt ,  Melissa Waldeck ,  Sean Weaver ,  Gary Williams

    发明人： Brian Hart ,  Gary Holt ,  Melissa Waldeck ,  Sean Weaver ,  Gary Williams

    IPC分类号： B41J2/14 ,  B41J2/16 ,  G01D15/00 ,  G11B5/127

    CPC分类号： B41J2/1603 ,  B41J2/162 ,  B41J2/1631 ,  B41J2/1645

    摘要： Improved photoimaged nozzle members for a micro-fluid ejection head, micro-fluid ejection heads containing such nozzle members, and methods for making any of the same. One such nozzle member is provided by a photoresist nozzle layer applied adjacent a thick film layer on a substrate having fluid ejector actuators. The photoresist nozzle layer has a plurality of nozzles therein. The nozzles are formed in the nozzle layer from an exit surface of the nozzle layer to an entrance surface of the nozzle layer. The nozzles have a reentrant hole profile with a wall angle greater than about 40 up to about 30° measured from an axis orthogonal to a plane defined by the exit surface of the nozzle layer.

    摘要翻译： 用于微流体喷射头的改进的光成像喷嘴构件，包含这种喷嘴构件的微流体喷射头及其制造方法。 一个这样的喷嘴构件由邻近具有流体喷射器致动器的基板上的厚膜层施加的光致抗蚀剂喷涂层提供。 光致抗蚀剂喷涂层在其中具有多个喷嘴。 喷嘴从喷嘴层的出射面到喷嘴层的入射面形成在喷嘴层中。 喷嘴具有从垂直于由喷嘴层的出射表面限定的平面的轴测量的壁角大于约40至约30°的折入孔轮廓。

    AUTOMATIC GAIN CONTROL AND LOW POWER START-OF-PACKET DETECTION FOR A WIRELESS LAN RECEIVER
    82.
    发明申请
    AUTOMATIC GAIN CONTROL AND LOW POWER START-OF-PACKET DETECTION FOR A WIRELESS LAN RECEIVER 有权
    无线局域网接收机的自动增益控制和低功耗起动分组检测

    公开(公告)号：US20070066259A1

    公开(公告)日：2007-03-22

    申请号：US11557728

    申请日：2006-11-08

    申请人： Philip Ryan ,  Andrew Adams ,  John O'Sullivan ,  Uri Parker ,  Brian Hart ,  Grzegorz Zyner

    发明人： Philip Ryan ,  Andrew Adams ,  John O'Sullivan ,  Uri Parker ,  Brian Hart ,  Grzegorz Zyner

    IPC分类号： H04B17/00 ,  H04B7/00

    CPC分类号： H03G3/3078

    摘要： A digital AGC system for burst operation, particularly suited for receiving packets in a wireless local area network. One embodiment includes a log detector that provides a signal strength measure, called the received signal strength indication (RSSI) over a wide dynamic range. The AGC system includes estimating the power in a received signal by averaging the log of the signal power. The Start of Packet detection avoids using the radio receiver's main analog to digital converters to preserve power.

    摘要翻译： 一种用于突发操作的数字AGC系统，特别适用于在无线局域网中接收分组。 一个实施例包括在宽动态范围内提供称为接收信号强度指示（RSSI）的信号强度测量的对数检测器。 AGC系统包括通过对信号功率的对数求平均来估计接收信号中的功率。 分组检测的开始避免使用无线电接收机的主要模数转换器来保持功率。

    Error vector magnitude selection diversity metric for OFDM
    85.
    发明申请
    Error vector magnitude selection diversity metric for OFDM 有权
    OFDM的误差矢量幅度选择分集度量

    公开(公告)号：US20050208897A1

    公开(公告)日：2005-09-22

    申请号：US11122560

    申请日：2005-05-04

    申请人： Daniel Lyons ,  Brian Hart

    发明人： Daniel Lyons ,  Brian Hart

    IPC分类号： H04B7/06 ,  H04B7/08 ,  H04B17/00 ,  H04B1/06 ,  H04B7/00 ,  H04B7/10 ,  H04L1/02

    CPC分类号： H04B7/0814 ,  H04B7/0608 ,  H04B7/0811 ,  H04B7/082 ,  H04B17/309

    摘要： Described herein is an apparatus for inclusion in a station of a wireless network, and a method implemented in a station of a wireless network. The method includes wirelessly receiving data via each of a plurality of antennas, the data corresponding to a packet of information transmitted from a remote station, sampling the received data corresponding to the received packet to form data samples for each of the antennas, and determining a measure of signal quality from samples of the received data for each of the antennas. The method further includes selecting one of the plurality of receive antennas as the antenna for receiving from the remote station according to the determined measure of signal quality.

    摘要翻译： 这里描述了一种用于包括在无线网络的站中的装置以及在无线网络的站中实现的方法。 该方法包括通过多个天线中的每一个无线地接收数据，该数据对应于从远程站发送的信息分组，对与所接收的分组相对应的接收数据进行采样，以形成每个天线的数据样本，并且确定 从每个天线的接收数据的采样中测量信号质量。 该方法还包括根据确定的信号质量测量，从多个接收天线中选择一个作为从远程站接收的天线。

    Wellhead assembly
    87.
    发明授权
    Wellhead assembly 失效
    井口总成

    公开(公告)号：US5992527A

    公开(公告)日：1999-11-30

    申请号：US950655

    申请日：1997-10-15

    申请人： David Garnham ,  Brian Hart ,  Craig Duell

    发明人： David Garnham ,  Brian Hart ,  Craig Duell

    IPC分类号： E21B33/035 ,  E21B34/04 ,  E21B33/03 ,  E21B33/04

    CPC分类号： E21B34/04 ,  E21B33/035

    摘要： A wellhead assembly in which an in-line tree (10) is landed within a wellhead housing (3). The in-line tree has a vertical production through bore (11), two hydraulically or electrically controllably in-line valves (13A, 13B) in the vertical production bore, and a lateral bore (16) leading from the vertical production through bore. A horizontal tree (20) having a vertical through bore (23) is landed on the wellhead housing (3) so that the in-line tree (20) is within the vertical bore. The horizontal tree has a lateral bore (24) which is aligned with the lateral bore (16) of the in-line tree. The in-line tree (10) can be run in and retrieved through the horizonal tree (20). Alternatively the horizontal tree (20) can be removed from the wellhead housing (3) without a BOP if the in-line valves (13A, 13B) are closed.

    摘要翻译： 井口组件，其中在线树（10）降落在井口壳体（3）内。 在线树具有通过钻孔（11）的垂直生产，垂直生产孔中的两个液压或电可控制的在线阀（13A，13B）和从垂直产生通孔的侧孔（16）。 具有垂直通孔（23）的水平树（20）在井口壳体（3）上着陆，使得直列树（20）在垂直孔内。 水平树具有与内嵌树的侧孔（16）对准的侧孔（24）。 在线树（10）可以运行并通过水平树（20）检索。 或者，如果在线阀（13A，13B）关闭，则可以从井口壳体（3）中移除水平树（20）而不用BOP。

    Adjustable connection apparatus
    88.
    发明授权
    Adjustable connection apparatus 失效
    可调连接装置

    公开(公告)号：US4998756A

    公开(公告)日：1991-03-12

    申请号：US443388

    申请日：1989-11-30

    申请人： Brian Hart

    发明人： Brian Hart

    IPC分类号： E21B43/013 ,  F16L27/12

    CPC分类号： F16L1/26 ,  E21B43/013 ,  F16L27/12

    摘要： An adjustable connection apparatus for joining tubular members including a first tubular member with a central bore, a counterbore on one end thereof, a flange on the other end thereof and external fine pitch grooves and ridges, a second tubular member with a central bore, a flange on one end thereof, a first reduced external diameter portion on the opposite end for insertion into said counterbore of said first tubular member, a second reduced diameter portion on the end of said first reduced diameter portion with external threads on the end of said second reduced diameter portion and external fin pitch grooves and ridges, clamping elements having internal fine pitch grooves and ridges for gripping engagement with the external grooves and ridges of said tubular members and means for securing the clamping elements together in gripping engagement with the tubular members to secure them into a joint having a preselected length and sealing means between the tubular members.

    Oil field system for through tubing rotary drilling
    89.
    发明授权
    Oil field system for through tubing rotary drilling 有权
    油田系统用于通过管道旋转钻孔

    公开(公告)号：US08875782B2

    公开(公告)日：2014-11-04

    申请号：US12673922

    申请日：2008-08-13

    申请人： Brian Hart

    发明人： Brian Hart

    IPC分类号： E21B33/06 ,  E21B34/04 ,  E21B33/035 ,  E21B33/064

    CPC分类号： E21B33/063 ,  E21B33/035 ,  E21B33/064 ,  E21B34/04

    摘要： An oil field system comprising a main body having a bore therethrough, the main body having a connection at one end of the bore for, in use, connecting the main body to an existing wellhead, tree or other oil field equipment, a transverse cavity through the bore, the cavity having at least one opening to the outside of the main body, a plurality of flow control devices for insertion, at different times, into the cavity in order to selectively control fluid flow through the bore, wherein the plurality of flow control devices includes a gate valve and drilling BOP rams.

    摘要翻译： 一种油田系统，包括具有穿过其中的孔的主体，所述主体在孔的一端具有连接，用于在使用中将主体连接到现有的井口，树或其他油田设备，横向腔通过 所述孔具有至少一个通向所述主体外部的开口;多个流量控制装置，用于在不同时间插入所述空腔中，以选择性地控制通过所述孔的流体流动，其中所述多个流动 控制装置包括闸阀和钻孔BOP公柱。

    SEALING MECHANISM FOR SUBSEA CAPPING SYSTEM
    90.
    发明申请
    SEALING MECHANISM FOR SUBSEA CAPPING SYSTEM 有权
    密封机械系统

    公开(公告)号：US20130175054A1

    公开(公告)日：2013-07-11

    申请号：US13344843

    申请日：2012-01-06

    申请人： Brian Hart ,  Cameron J. Berry

    发明人： Brian Hart ,  Cameron J. Berry

    IPC分类号： E21B33/12 ,  E21B33/03

    CPC分类号： E21B33/037 ,  E21B33/035 ,  E21B33/038

    摘要： A sealing mechanism is provided. In one embodiment, a system includes a connector configured to couple one or more flow-control valves to equipment installed at a well and an isolation sleeve configured to be retained by the connector. The isolation sleeve may include a seal and a hydraulically actuated piston disposed adjacent one another about a body of the isolation sleeve such that actuation of the piston engages the seal. Additional systems, devices, and methods are also disclosed.

    摘要翻译： 提供了一种密封机构。 在一个实施例中，系统包括被配置为将一个或多个流量控制阀耦合到安装在井处的设备和被配置为由连接器保持的隔离套管的连接器。 隔离套管可以包括密封件和液压致动的活塞，其围绕隔离套筒的本体彼此相邻设置，使得活塞的致动接合密封件。 还公开了附加的系统，装置和方法。