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1. 发明授权

EP0873509B1 PARTICLE SEPARATION AND DETECTION APPARATUS 失效
标题翻译： TEILCHENTRENNUNGS-和检测装置
公开(公告)号：EP0873509B1
公开(公告)日：2002-10-23
申请号：EP97900289.6
申请日：1997-01-07
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： HARLEY, Philip
IPC分类号： G01N21/53
CPC分类号： G01N21/53
摘要： Particle detecting apparatus for detecting oil mist or other particulate matter comprises a measuring section (5) and an input/output section (6) which are removably attached together. A measuring chamber (60) receives gaseous fluid by diffusion from a receiving chamber (30) connected via an inlet (16) to an area being monitored. The measuring chamber (60) is defined by a cylindrical body (34) housing pairs of light emitting diodes (46A, 46B...) positioned diametrically opposite each other and directing light towards each other through a sampling volume (62) which is viewed by a photo-diode (52) through a viewing aperture (56). The photo-diode (52) detects light scattered by particles in the sampling volume (62). A glass tube (64) protects the LEDs (46A, 46B) from contamination and can easily be cleaned or removed and replaced. Each of the LEDs (e.g. 46A) can temporarily be de-energised in turn so as to act as a light detector, its output in response to light received from the opposite LED (e.g. 46B) being thus a measure of any contamination. The measuring and input/output sections (5, 6) can easily be separated for servicing or replacement.

2. 发明授权

EP0979125B1 EXPLOSION SUPPRESSION ARRANGEMENTS AND METHODS 失效
标题翻译：爆炸抑制装置和方法
公开(公告)号：EP0979125B1
公开(公告)日：2002-06-26
申请号：EP98917456.0
申请日：1998-04-23
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： MOORE, Peter
IPC分类号： A62C35/02 , A62C13/22
CPC分类号： A62C35/023 , A62C13/22
摘要： An explosion suppression arrangement is described for attachment to the outside wall of an area at risk from explosions which, on detection of an explosion in the area, discharges explosion suppressant material into the area to suppress the explosion. The arrangement comprises a container (14), with an outlet (16) closed by a frangible diaphragm (24), a source (20) of pressurized gas mounted within the container (14) for producing gas upon activation of the source (20), and a suppressant distribution device (22). When an explosion is detected, activating the source (20), the suppressant material (18) is pressurized by the pressurized gas exiting through the pipes (22) and the diaphragm (24) will break so discharging the suppressant material through the outlet (16).
摘要翻译：描述了一种爆炸抑制装置，用于连接爆炸危险区域的外壁，在检测到该区域发生爆炸时，将爆炸抑制材料排入该区域以抑制爆炸。该装置包括具有由易碎隔膜（24）封闭的出口（16）的容器（14），安装在容器（14）内用于在激活源（20）时产生气体的加压气体源（20）和抑制剂分配装置（22）。当检测到爆炸时，启动源（20），抑制材料（18）由通过管道（22）离开的加压气体加压并且隔膜（24）将破裂，从而通过出口（16）排出抑制材料）。

3. 发明公开

EP0979125A1 EXPLOSION SUPPRESSION ARRANGEMENTS AND METHODS 失效
标题翻译：方法和装置EXPLOSIONSUNDERDRÜCKUNG
公开(公告)号：EP0979125A1
公开(公告)日：2000-02-16
申请号：EP98917456.0
申请日：1998-04-23
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： MOORE, Peter
IPC分类号： A62C35/02 , A62C13/22
CPC分类号： A62C35/023 , A62C13/22
摘要： An explosion suppression arrangement is described for attachment to the outside wall of an area at risk from explosions which, on detection of an explosion in the area, discharges explosion suppressant material into the area to suppress the explosion. The arrangement comprises a container (14), with an outlet (16) closed by a frangible diaphragm (24), a source (20) of pressurized gas mounted within the container (14) for producing gas upon activation of the source (20), and a suppressant distribution device (22). When an explosion is detected, activating the source (20), the suppressant material (18) is pressurized by the pressurized gas exiting through the pipes (22) and the diaphragm (24) will break so discharging the suppressant material through the outlet (16).

4. 发明授权

EP0464049B1 ELECTRICAL QUENCHING CIRCUIT 失效
标题翻译：电气火灾CIRCUIT
公开(公告)号：EP0464049B1
公开(公告)日：1996-02-28
申请号：EP90904403.4
申请日：1990-03-16
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： HARLEY, Phillip, Edward
IPC分类号： H03K17/74 , H03K17/78 , H03K17/94 , G01J1/44
CPC分类号： H03K17/941 , G01J1/44 , H03K17/74
摘要： An electrical quenching circuit for detecting, and quenching, avalanches in an avalanching device (5), comprises a TTL comparator (14) having one of its inputs (24) fed with a predetermined potential via a potential divider (18, 20) and a voltage reference (22). When a switchable current source (6) is in its low impedance state, and when the device (5) is quiescent, diodes (10) and (16) conduct and input (12) is held at the potential of the voltage reference (22). Comparator (14) is in one stable state. Variations in the voltage reference affect both comparator inputs substantially equally. When the device (5) avalanches, the current from source (6) is diverted through the device and the diodes (10) and (16) cease to conduct. The potential at comparator input (12) falls and, at a critical value, switches the comparator to its other stable state. This is indicated by a pulse on line (34). The output on line (28) switches current source (6) into its high impedance state and quenches the avalanche in the device (5). A time-delayed output to diode (32) raises the potential at comparator input (12) so as to switch the comparator back to its initial state.

5. 发明公开

EP0656533A1 Temperature detecting methods and systems 失效
标题翻译： Vorrichtungen und Verfahren zur Temperaturdetektion。
公开(公告)号：EP0656533A1
公开(公告)日：1995-06-07
申请号：EP94307404.7
申请日：1994-10-10
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： Powell, Brain David
IPC分类号： G01K3/14 , G01K7/00
CPC分类号： G01K7/00 , G01K3/14
摘要： An elongate temperature sensor (10) comprises two electrical conductors (12,14) having temperature sensitive insulating material between them whose resistance and capacitance varies with temperature but according to respectively different known relationships. An alternating waveform (V in ) is applied across the sensor (10) through a known resistor (R s ). The amplitudes of the voltage waveforms developed across the known resistor (R s ) and across the sensor (10) are compared and the phase difference between them measured to determine the corresponding resistance and capacitance values of the sensor (10). The measured value of one parameter is then substituted into the respective known relationship to produce a corresponding temperature value for the sensor (10). This temperature value is then substituted into the relationship for the other parameter to calculate a notional value for that parameter. If that notional value differs from the measured value, this is used to produce an indication that the sensor is not being uniformly heated but has an overheated sectional part. By means of further processing, the length and position of the overheated section and its actual temperature can be determined.
摘要翻译：细长的温度传感器（10）包括两个电导体（12,14），它们之间具有温度敏感的绝缘材料，其电阻和电容随着温度而变化，但是根据不同的已知关系。通过已知的电阻（Rs）跨越传感器（10）施加交替波形（Vin）。比较已知电阻（Rs）和传感器（10）两端产生的电压波形的振幅，并测量它们之间的相位差，以确定传感器（10）的相应电阻和电容值。然后将一个参数的测量值代入相应的已知关系，以产生传感器（10）的相应温度值。然后将该温度值替换为其他参数的关系，以计算该参数的名义值。如果该名义值与测量值不同，则用于产生传感器未被均匀加热但具有过热部分的指示。通过进一步处理，可以确定过热段的长度和位置及其实际温度。

6. 发明公开

EP0463795A1 Smoke Particle detector 失效
标题翻译： Rauchpartikeldetektor。
公开(公告)号：EP0463795A1
公开(公告)日：1992-01-02
申请号：EP91305562.0
申请日：1991-06-19
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： Dennis, Peter Neil John , Burgess, Douglas Edward
IPC分类号： G08B17/107
CPC分类号： G08B17/107 , G08B17/113
摘要： A high sensitivity smoke detector comprises a housing (10) incorporating a sampling chamber (16) through which air to be sampled is forced through the inlet (18) and outlet (20) in the direction of the arrows. A modulated light source (22), such as a laser, directs modulated light through the chamber (16) to a beam dump (26). The light beam (24) is offset from the axis of the housing (10) by an acute angle of between 15 and 50 degrees. If any smoke particles are positioned within a sampling volume (42), the light is scattered along a path (30) defined by baffles (32 to 40) to a light sensor (28) whose electrical output is passed through a phase-sensitive detection circuit which is referenced by the frequency at which the light source (22) is modulated, so as to produce an output dependent on the light scattered by the smoke particles.
摘要翻译：高灵敏度烟雾探测器包括结合有采样室（16）的壳体（10），待采样的空气通过所述壳体（10）沿着箭头的方向被迫通过入口（18）和出口（20）。诸如激光器的调制光源（22）将调制的光引导通过腔室（16）到光束收集器（26）。光束（24）以15至50度的锐角偏离壳体（10）的轴线。如果任何烟雾颗粒位于采样体积（42）内，则光沿着由挡板（32至40）限定的路径（30）散射到光传感器（28），光传感器（28）的电输出通过相敏检测由调制光源（22）的频率参照的电路，以便产生取决于烟粒子散射的光的输出。

7. 发明授权

EP1023709B1 HIGH SENSITIVITY PARTICLE DETECTION 有权
标题翻译：高灵敏度粒子探测
公开(公告)号：EP1023709B1
公开(公告)日：2002-07-03
申请号：EP98947664.3
申请日：1998-10-13
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： POWELL, Brian
IPC分类号： G08B17/107
CPC分类号： G08B17/107 , G08B17/113
摘要： A smoke detector is shown in which smoke particles are detected by the collection and detection of blue light emitted from a radiation source (3) and scattered by the particles. The emitted radiation (7) is passed into a volume (9) and is scattered by any smoke particles present. Scattered radiation is collected by an ellipsoidal mirror (13) and focussed on a silicon photodiode (15). The light collected by the mirror (13) has been scattered through angles substantially less than 45 DEG and preferably between about 10 DEG and 35 DEG .

8. 发明授权

EP0464048B1 PARTICULATE DETECTING AND OPTICAL COUPLING ARRANGEMENTS 失效
标题翻译：设备对于粒子检测和光学式离合器。
公开(公告)号：EP0464048B1
公开(公告)日：1995-08-16
申请号：EP90904402.6
申请日：1990-03-16
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： HARLEY, Phillip, Edward
IPC分类号： G01N21/47
CPC分类号： G01N21/8507 , G01J2001/4466 , G01J2005/062 , G01N21/51 , G01N21/53 , G01N2015/0238 , G01N2201/0813
摘要： Apparatus for detecting particulates (46) within a medium in a chamber (10) comprises a photo-detector (14) which is maintained at a stable low temperature by a Peltier type cooling device (42). Scattered light from the particulate (46) is focussed by a spherical lens (34) onto the input face (30) of a rod lens (22). The latter has an optical pitch of 0.5 and transfers the image to its output face (25) whence it passes via a light pipe (18) to the sensitive area (16) of the photo-electric device (14). The rod lens (22) provides an inexpensive means for transferring the light and which provides a thermal barrier. Thus, although the photo-electric device (14) is held at a low temperature, the input face (30) of the rod lens (22) can be held at the temperature of the medium within the chamber (10) and is not subjected to the formation of mist or ice. The lens (34) is mounted by means of a collar (28) which is slidable into a position in which the lens (34) focusses the input light onto the face (30) of the lens (22), and then secured in this position by ultra-violet-cured adhesive fillets (32, 34).

9. 发明公开

EP1023709A1 HIGH SENSITIVITY PARTICLE DETECTION 有权
标题翻译：高灵敏度粒子探测
公开(公告)号：EP1023709A1
公开(公告)日：2000-08-02
申请号：EP98947664.3
申请日：1998-10-13
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： POWELL, Brian
IPC分类号： G08B17/107
CPC分类号： G08B17/107 , G08B17/113
摘要： A smoke detector is shown in which smoke particles are detected by the collection and detection of blue light emitted from a radiation source (3) and scattered by the particles. The emitted radiation (7) is passed into a volume (9) and is scattered by any smoke particles present. Scattered radiation is collected by an ellipsoidal mirror (13) and focussed on a silicon photodiode (15). The light collected by the mirror (13) has been scattered through angles substantially less than 45° and preferably between about 10° and 35°.

10. 发明公开

EP0873509A2 PARTICLE SEPARATION AND DETECTION APPARATUS 失效
标题翻译： TEILCHENTRENNUNGS-和检测装置
公开(公告)号：EP0873509A2
公开(公告)日：1998-10-28
申请号：EP97900289.0
申请日：1997-01-07
申请人： KIDDE FIRE PROTECTION LIMITED
发明人： HARLEY, Philip
IPC分类号： G01N15 , G01N21
CPC分类号： G01N21/53
摘要： Particle detecting apparatus for detecting oil mist or other particulate matter comprises a measuring section (5) and an input/output section (6) which are removably attached together. A measuring chamber (60) receives gaseous fluid by diffusion from a receiving chamber (30) connected via an inlet (16) to an area being monitored. The measuring chamber (60) is defined by a cylindrical body (34) housing pairs of light emitting diodes (46A, 46B...) positioned diametrically opposite each other and directing light towards each other through a sampling volume (62) which is viewed by a photo-diode (52) through a viewing aperture (56). The photo-diode (52) detects light scattered by particles in the sampling volume (62). A glass tube (64) protects the LEDs (46A, 46B) from contamination and can easily be cleaned or removed and replaced. Each of the LEDs (e.g. 46A) can temporarily be de-energised in turn so as to act as a light detector, its output in response to light received from the opposite LED (e.g. 46B) being thus a measure of any contamination. The measuring and input/output sections (5, 6) can easily be separated for servicing or replacement.

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