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13 条记录 (耗时 0.013 秒)

    Binary signal receiver for time compression multiplexing
    1.
    发明授权
    Binary signal receiver for time compression multiplexing 失效
    用于时间压缩复用的二进制信号接收器

    公开(公告)号：US4472800A

    公开(公告)日：1984-09-18

    申请号：US403312

    申请日：1982-07-30

    申请人： Marvin Krym ,  William F. McGee

    发明人： Marvin Krym ,  William F. McGee

    IPC分类号： H04L5/14 ,  H04J3/00

    CPC分类号： H04L5/1492

    摘要： A receive circuit for binary signals in time compression multiplexing systems mitigates effects of the local data decay tail and zero line wander by means of a sample-and-hold circuit, having a fast attack and a decay time constant equal to a combination of the transmission line, and dc blocking device time constants followed by a subtracting difference amplifier. Power feed of the line via dc blocking capacitors is thus possible. Also higher receiver gain is possible when sampling switch is left on during local data transmission without receiver instability.

    摘要翻译： 用于时间压缩复用系统中的二进制信号的接收电路通过采样和保持电路来减轻局部数据衰减尾部和零线漂移的影响，其具有等于传输的组合的快速攻击和衰减时间常数 线路和直流阻塞器件时间常数，后跟减法差分放大器。 因此可以通过直流阻塞电容器对电源进行馈电。 当本地数据传输中没有接收机不稳定性时，采样开关仍处于开启状态时，接收机增益更高。

    "> Plasma arc welding torch having means for
    3.
    发明授权
    Plasma arc welding torch having means for "vortexing" plasma gas exiting the welding torch 失效
    等离子弧焊枪具有“涡流”离开焊炬的等离子体气体的装置

    公开(公告)号：US5362938A

    公开(公告)日：1994-11-08

    申请号：US158327

    申请日：1993-11-29

    申请人： William F. McGee ,  Daniel J. Rybicki

    发明人： William F. McGee ,  Daniel J. Rybicki

    IPC分类号： H05H1/34 ,  B23K9/00 ,  B23K10/00

    CPC分类号： H05H1/34 ,  H05H2001/3457 ,  H05H2001/3468 ,  H05H2001/3478 ,  H05H2001/3484

    摘要： A plasma arc welding torch wherein a plasma gas is directed through the body of the welding torch and out of the body across the tip of the welding electrode disposed at the forward end of the body. The plasma gas is provided with a vortexing motion prior to exiting the body by a vortex motion imparting member which is mounted in an orifice housing member and carried in the forward portion of the torch body. The orifice housing member is provided with an orifice of an predetermined diameter through which the electric arc and the plasma gas exits.

    摘要翻译： 一种等离子体电弧焊炬，其中等离子体气体穿过焊炬的主体并且穿过设置在身体前端的焊接电极的尖端。 等离子体气体在通过涡流运动施加构件离开体之前被提供涡旋运动，该涡流运动施加构件安装在孔口壳体构件中并被携带在手电筒本体的前部。 孔口壳体部件设置有预定直径的孔口，电弧和等离子体气体通过该孔口离开。

    Gas arc constriction for plasma arc welding
    4.
    发明授权
    Gas arc constriction for plasma arc welding 失效
    等离子体电弧焊的气弧压缩

    公开(公告)号：US5302804A

    公开(公告)日：1994-04-12

    申请号：US81890

    申请日：1993-06-25

    申请人： William F. McGee ,  Daniel J. Rybicki

    发明人： William F. McGee ,  Daniel J. Rybicki

    IPC分类号： H05H1/34 ,  B23K10/00 ,  B23K9/167

    CPC分类号： H05H1/3405

    摘要： A welding torch for plasma arc welding apparatus has an inert gas applied circumferentially about the arc column externally of the constricting nozzle so as to apply a constricting force on the arc after it has exited the nozzle orifice and downstream of the auxiliary shielding gas. The constricting inert gas is supplied to a plenum chamber about the body of the torch and exits through a series of circumferentially disposed orifices in an annular wall forming a closure at the forward end of the constricting gas plenum chamber. The constricting force of the circumferential gas flow about the arc concentrates and focuses the arc column into a more narrow and dense column of energy after exiting the nozzle orifice so that the arc better retains its energy density prior to contacting the workpiece.

    摘要翻译： 用于等离子体电弧焊接装置的焊炬具有围绕收缩管外部的弧形柱周向地施加的惰性气体，以便在已经离开喷嘴孔和辅助保护气体的下游之后对电弧施加约束力。 收缩的惰性气体被供应到围绕火炬主体的增压室，并且通过一系列周向设置的孔口在环形壁中离开，该环形壁在收缩气室室的前端形成封闭件。 围绕电弧的周向气流的收缩力集中并且在离开喷嘴孔之后将弧形柱聚焦成更窄和致密的能量列，使得弧在接触工件之前更好地保持其能量密度。

    Ternary gas plasma welding torch
    7.
    发明授权
    Ternary gas plasma welding torch 失效
    三元气等离子焊枪

    公开(公告)号：US5399831A

    公开(公告)日：1995-03-21

    申请号：US172961

    申请日：1993-12-27

    申请人： William F. McGee ,  Daniel J. Rybicki ,  Douglas J. Waldron

    发明人： William F. McGee ,  Daniel J. Rybicki ,  Douglas J. Waldron

    IPC分类号： H05H1/34 ,  B23K10/00

    CPC分类号： H05H1/3405

    摘要： A plasma arc welding torch wherein a first plasma gas is directed through the body of the welding torch and out of the body across the tip of a welding electrode disposed at the forward end of the body. A second plasma gas is disposed for flow through a longitudinal bore in the electrode. The second plasm gas enters one end of the electrode and exits the electrode at the tip thereof for coacting with the electric welding arc to produce the desired weld. A shield gas is directed through the torch body for circulating around the head of the torch adjacent the electrode tip.

    摘要翻译： 一种等离子体电弧焊炬，其中第一等离子体气体被引导通过焊炬主体并且穿过设置在主体前端的焊接电极的尖端。 设置第二等离子体气体以流过电极中的纵向孔。 第二等离子体气体进入电极的一端并在其顶端离开电极，以与电焊弧共同作用以产生所需的焊接。 屏蔽气体被引导通过割炬本体，用于在靠近电极末端的火炬头周围循环。

    Apparatus for coupling a two-way transmission path to a one-way transmitting path and a one-way receiving path
    8.
    发明授权
    Apparatus for coupling a two-way transmission path to a one-way transmitting path and a one-way receiving path 失效
    用于将双向传输路径耦合到单向传输路径和单向接收路径的装置

    公开(公告)号：US4326109A

    公开(公告)日：1982-04-20

    申请号：US138839

    申请日：1980-04-11

    申请人： William F. McGee ,  Wasfy B. Mikhael

    发明人： William F. McGee ,  Wasfy B. Mikhael

    IPC分类号： H04B1/58

    CPC分类号： H04B1/586

    摘要： A one-way receiving path is connected to the input side of a first phase-shift network which produces signals in phase quadrature at its output side, which is connected to the input side of a second phase-shift network which is conjugate to the first and whose output side is connected to a one-way transmitting path. A two-way transmission path and a balancing impedance are connected to the junction between the phase-shift networks. The arrangement provides a balanced or unbalanced hybrid circuit. Each phase-shift network can comprise a symmetrical polyphase network with cascaded network sections for handling voice frequency signals.

    摘要翻译： 单向接收路径连接到第一相移网络的输入侧，该第一相移网络在其输出侧产生相位正交的信号，其连接到与第一相移网络共轭的第二相移网络的输入侧 并且其输出侧连接到单向发送路径。 双向传输路径和平衡阻抗连接到相移网络之间的连接点。 该装置提供了一种平衡或非平衡混合电路。 每个相移网络可以包括具有用于处理语音频率信号的级联网络部分的对称多相网络。