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    Seismic surveying using shear waves
    21.
    发明授权
    Seismic surveying using shear waves 失效
    使用剪切波的地震测量

    公开(公告)号：US4481612A

    公开(公告)日：1984-11-06

    申请号：US196008

    申请日：1980-10-10

    申请人： John W. Curran

    发明人： John W. Curran

    IPC分类号： G01V1/053 ,  G01V1/133 ,  G01V1/40

    CPC分类号： G01V1/133 ,  G01V1/053

    摘要： The shear wave source of this invention includes a housing and means for applying forces to the shot hole wall. The force applying means applies a number of forces to the shot hole wall along lines normal to a plane close to the shot hole. No pressure waves, but only shear waves are generated at distant points on the plane. At least one of the forces is applied in opposite direction to the other forces to reduce the net recoil of the housing.A first, second and third force are applied at three source points in the observation plane along three lines normal to the plane to generate respectively a first, second and third shear wave in the plane. The first and third forces are equal in magnitude and the second force has twice the magnitude of the first force. The first and third forces are applied along lines in the same direction, but the second force is applied along a line opposite in direction to the lines of the first and third forces. The three forces are so applied that, at any distant point on the observation plane, the second shear wave lags the first shear wave in phase by a predetermined amount and a third shear wave lags the second shear wave in phase by the same amount. The three shear waves will interfere to produce a resonance. Generation of shear waves with frequencies at or close to the resonance frequencies is thereby enhanced, and generation of shear waves with other frequencies is thereby retarded.

    摘要翻译： 本发明的剪切波源包括壳体和用于向射孔壁施加力的装置。 力施加装置沿着垂直于靠近喷射孔的平面的线沿喷射孔壁施加多个力。 没有压力波，但只有在平面上的远处产生剪切波。 至少一个力被施加在与其他力相反的方向上，以减小壳体的净反冲。 第一，第二和第三力沿着垂直于平面的三条线施加在观察平面中的三个源点处，以在平面中分别产生第一，第二和第三剪切波。 第一和第三力的大小相等，第二力是第一力的两倍。 第一和第三力沿着相同方向的线施加，但是第二力沿着与第一和第三力的线相反的方向施加。 这三个力被应用于在观察平面上的任何远处，第二剪切波相对于预定量的第一剪切波滞后，而第三剪切波相位相差相差的第二剪切波。 三个剪切波将会干扰产生共振。 因此，产生频率处于或接近共振频率的剪切波，从而延迟了产生其他频率的剪切波。

    APPARATUS AND METHOD FOR SYNCHRONIZING VISUAL/AUDIBLE ALARM UNITS IN AN ALARM SYSTEM
    24.
    发明申请
    APPARATUS AND METHOD FOR SYNCHRONIZING VISUAL/AUDIBLE ALARM UNITS IN AN ALARM SYSTEM 有权
    报警系统中可视/可听报警单元同步的装置和方法

    公开(公告)号：US20080266064A1

    公开(公告)日：2008-10-30

    申请号：US12173664

    申请日：2008-07-15

    申请人： John W. Curran ,  Joseph Kosich

    发明人： John W. Curran ,  Joseph Kosich

    IPC分类号： G08B25/00

    CPC分类号： G08B25/04 ,  G08B7/06 ,  Y10T307/438

    摘要： An apparatus and concomitant method of reducing the number of synchronization pulses transmitted to the alarm units for increasing the reliability of the overall alarm system is disclosed. The synchronization signal is implemented as a reference or reset signal from which the alarm units derive a reference time to begin activation of the alarm units. Thus, when an alarm unit receives a reference synchronization pulse, the alarm unit applies the reference synchronization pulse as a reference point in time to trigger a series of flashes or audio tones. A second signal sent in close proximity to the synchronization signal is implemented to trigger a second function of the alarm units, such as a silence function.

    摘要翻译： 公开了一种减少发送到报警单元的同步脉冲数量以提高整个报警系统的可靠性的装置和伴随方法。 同步信号被实现为参考或复位信号，报警单元从该参考或复位信号得到参考时间以开始启动报警单元。 因此，当报警单元接收到参考同步脉冲时，报警单元将参考同步脉冲作为参考点施加时间以触发一系列闪烁或音频音调。 实现靠近同步信号发送的第二信号，以触发警报单元的第二功能，诸如静音功能。

    Apparatus and method for synchronizing visual/audible alarm units in an alarm system
    25.
    发明授权
    Apparatus and method for synchronizing visual/audible alarm units in an alarm system 有权
    用于在报警系统中同步视觉/听觉报警单元的装置和方法

    公开(公告)号：US07403096B2

    公开(公告)日：2008-07-22

    申请号：US11446041

    申请日：2006-06-02

    申请人： John W. Curran ,  Joseph Kosich

    发明人： John W. Curran ,  Joseph Kosich

    IPC分类号： G08B25/00

    CPC分类号： G08B3/10 ,  G08B5/38 ,  G08B7/06 ,  G08B17/00 ,  G08B25/04 ,  G08B25/14 ,  G08B27/00

    摘要： An apparatus and concomitant method of reducing the number of synchronization pulses transmitted to the alarm units for increasing the reliability of the overall alarm system is disclosed. The synchronization signal is implemented as a reference or reset signal from which the alarm units derive a reference time to begin activation of the alarm units. Thus, when an alarm unit receives a reference synchronization pulse, the alarm unit applies the reference synchronization pulse as a reference point in time to trigger a series of flashes or audio tones. A second signal sent in close proximity to the synchronization signal is implemented to trigger a second function of the alarm units, such as a silence function.

    摘要翻译： 公开了一种减少发送到报警单元的同步脉冲数量以提高整个报警系统的可靠性的装置和伴随方法。 同步信号被实现为参考或复位信号，报警单元从该参考或复位信号得到参考时间以开始启动报警单元。 因此，当报警单元接收到参考同步脉冲时，报警单元将参考同步脉冲作为参考点施加时间以触发一系列闪烁或音频音调。 实现靠近同步信号发送的第二信号，以触发警报单元的第二功能，诸如静音功能。

    Apparatus and method for synchronizing visual/audible alarm units in an alarm system
    26.
    发明授权
    Apparatus and method for synchronizing visual/audible alarm units in an alarm system 有权

    公开(公告)号：US06194994B1

    公开(公告)日：2001-02-27

    申请号：US09153105

    申请日：1998-09-15

    申请人： John W. Curran ,  Joseph Kosich

    发明人： John W. Curran ,  Joseph Kosich

    IPC分类号： G08B2500

    CPC分类号： G08B27/00 ,  G08B7/06

    摘要： An apparatus and concomitant method of reducing the number of synchronization pulses transmitted to the alarm units for increasing the reliability of the overall alarm system is disclosed. The synchronization signal is implemented as a reference or reset signal from which the alarm units derive a reference time to begin activation of the alarm units. Thus, when an alarm unit receives a reference synchronization pulse, the alarm unit applies the reference synchronization pulse as a reference point in time to trigger a series of flashes or audio tones.

    Apparatus and method for synchronizing visual/audible alarm units in an alarm system
    28.
    发明授权
    Apparatus and method for synchronizing visual/audible alarm units in an alarm system 有权
    用于在报警系统中同步视觉/听觉报警单元的装置和方法

    公开(公告)号：US07907047B2

    公开(公告)日：2011-03-15

    申请号：US12173664

    申请日：2008-07-15

    申请人： John W. Curran ,  Joseph Kosich

    发明人： John W. Curran ,  Joseph Kosich

    IPC分类号： G08B25/00

    CPC分类号： G08B25/04 ,  G08B7/06 ,  Y10T307/438

    摘要： An apparatus and concomitant method of reducing the number of synchronization pulses transmitted to the alarm units for increasing the reliability of the overall alarm system is disclosed. The synchronization signal is implemented as a reference or reset signal from which the alarm units derive a reference time to begin activation of the alarm units. Thus, when an alarm unit receives a reference synchronization pulse, the alarm unit applies the reference synchronization pulse as a reference point in time to trigger a series of flashes or audio tones. A second signal sent in close proximity to the synchronization signal is implemented to trigger a second function of the alarm units, such as a silence function.

    摘要翻译： 公开了一种减少发送到报警单元的同步脉冲数量以提高整个报警系统的可靠性的装置和伴随方法。 同步信号被实现为参考或复位信号，报警单元从该参考或复位信号得到参考时间以开始启动报警单元。 因此，当报警单元接收到参考同步脉冲时，报警单元将参考同步脉冲作为参考点施加时间以触发一系列闪烁或音频音调。 实现靠近同步信号发送的第二信号，以触发警报单元的第二功能，诸如静音功能。