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    • 7. 发明授权
    • Sensor test method and apparatus
    • 传感器测试方法和装置
    • US5686885A
    • 1997-11-11
    • US535707
    • 1995-09-28
    • John Bergman
    • John Bergman
    • G08B29/14G08B29/00
    • G08B25/10G08B29/14G08B25/002
    • In a security system having a remote monitoring station, a sensor is tested when the security system is in a normal operating mode. The sensor is tested by actuation of a button on the sensor. Actuation of the button generates a signal indicating that a test has been conducted. Upon the generatation of both an alarm signal generated by the test and a signal indicating that a test has been conducted, the security system determines that the alarm signal was generated by a test of the sensor and not by the detection of alarm conditions by the sensor.
    • 在具有远程监视站的安全系统中,当安全系统处于正常操作模式时,测试传感器。 传感器通过致动传感器上的按钮进行测试。 按钮的启动产生一个指示已经进行了测试的信号。 在通过测试产生的报警信号和表示进行了测试的信号的生成时,安全系统确定报警信号是通过传感器的测试产生的,而不是由传感器检测报警条件 。
    • 10. 发明申请
    • Method and apparatus for mixing pulverous material with liquid
    • 粉碎材料与液体混合的方法和装置
    • US20050002270A1
    • 2005-01-06
    • US10495809
    • 2002-11-21
    • John Bergman
    • John Bergman
    • B01F3/12B01F5/00B01F5/24B01F13/10B01F15/02
    • B01F5/248B01F5/0057B01F13/1033B01F2003/125B01F2005/0017
    • Liquid is supplied within a substantially vertical mixing chamber in a substantially tangential manner from a chamber top section, such that the liquid is deflected for rotatory motion against a chamber wall while advancing, in response to a pressure difference, downwards in the direction of a chamber longitudinal axis. Pulverous material is supplied by compressed air into the chamber (3) from the top section and into an air core (A) established by the liquid in rotatory motion, such that the pulverous material containing little air, and by being heavier than the air contained in the pulverous material and/or used for carrying the same, is driven in response to a centrifugal force into the liquid in rotatory motion, and the air separates towards the eddy center, and that the liquid containing pulverous material and the air supplied into the chamber, are discharged through an open bottom section of the chamber (3).
    • 液体在基本上垂直的混合室内以基本上切向的方式从室顶部供应,使得液体响应于压力差在腔室的方向上向下偏转以转动抵抗室壁的旋转运动 纵轴。 粉末材料由压缩空气从顶部供给到室(3)中并进入通过旋转运动由液体建立的空气芯(A),使得含有少量空气并且比包含的空气重的粉状材料 在粉状材料中和/或用于承载它们时,响应于旋转运动中的离心力而驱动到液体中,并且空气朝向涡流中心分离,并且将含有粉状材料的液体和供应到 通过室(3)的开口底部排出。