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1. 发明授权

US5347223A Gas leak detector sensing tip with interior concentric bores and corona current generation 失效
标题翻译：气体泄漏检测器检测尖端具有内部同心孔和电晕电流产生
公开(公告)号：US5347223A
公开(公告)日：1994-09-13
申请号：US7844
申请日：1993-01-22
申请人： Jan Krcma , Dennis Martell
发明人： Jan Krcma , Dennis Martell
IPC分类号： G01M3/16 , G01M3/20 , G01N27/70 , G01N27/60 , G08B21/00
CPC分类号： G01M3/20 , G01M3/16 , G01N27/70
摘要： A gas leak detector that operates on the corona principle having a sensing tip with a pair of electrodes across which a high voltage is provided to generate a corona current through the electrodes. The sensing tip includes a first electrode having a conductive housing with a first end having a gas inlet formed therein and a second end and a flow passage formed therein. The flow passage has a first bore provided between the gas inlet and the second end of said conductive housing and a second bore having a diameter smaller than that of the first bore. The second bore is provided between the first bore and the gas inlet of the conductive housing and abuts the first bore to form an edge in the interior of the housing. The flow passage also has a third bore of a diameter smaller than that of the second bore provided between the second bore and the gas inlet. The gas leak detector also includes a second electrode provided in the interior of the conductive housing. The second electrode has a tip provided at a defined location with respect to the edge in the interior of said housing. The leak detector also has a voltage supply circuit for generating a voltage sufficient to cause a corona to be formed across the electrodes, with the corona being formed between the second electrode and the edge in the interior of the housing.
摘要翻译：一种气体检测器，其操作在电晕原理上，其具有带有一对电极的感测尖端，跨越电极提供高电压以产生通过电极的电晕电流。感测尖端包括具有导电壳体的第一电极，第一端部具有形成在其中的气体入口，第二端部和形成在其中的流动通道。流动通道具有设置在气体入口和所述导电壳体的第二端之间的第一孔，第二孔的直径小于第一孔的直径。第二孔设置在第一孔和导电壳体的气体入口之间，并邻接第一孔以在壳体的内部形成边缘。流动通道还具有直径小于设置在第二孔和气体入口之间的第二孔的直径的第三孔。气体泄漏检测器还包括设置在导电壳体内部的第二电极。第二电极具有设置在相对于所述壳体内部的边缘的限定位置的尖端。泄漏检测器还具有电压供应电路，用于产生足以在电极之间形成电晕的电压，其中电晕形成在第二电极和壳体内部的边缘之间。

2. 发明授权

US5184500A Gas detector 失效
标题翻译：气体探测器
公开(公告)号：US5184500A
公开(公告)日：1993-02-09
申请号：US496333
申请日：1990-03-20
申请人： Jan Krcma , Terry A. Batt
发明人： Jan Krcma , Terry A. Batt
IPC分类号： G01N33/00
CPC分类号： G01N27/122
摘要： A battery-powered gas detector comprises a gas sensor coupled to a current source and a power supply. The power supply generates a relatively high voltage when the gas sensor is warming up and a relatively low voltage after the sensor has warmed up. The gas sensor, which is responsive to the presence of a gas, is coupled to an amplifier having a variable sensitivity circuit. The amplifier is connected to a microprocessor that determines the concentration of the sensed gas and provides a visual indication of the concentration on a display. The gas detector can sense the presence of a variety of different gases. The gas concentration of the sensed gas is determined based upon the magnitudes of a gas sensing signal generated by the amplifier, a calibration signal generated during a calibration routine when the detector is in a controlled environment, and an error signal generated when the detector is in a no-gas environment.
摘要翻译：电池供电的气体检测器包括耦合到电流源和电源的气体传感器。当气体传感器升温时，电源产生相对较高的电压，传感器加热后电压相对较低。气体传感器响应于气体的存在而被耦合到具有可变灵敏度电路的放大器。放大器连接到微处理器，该微处理器确定检测到的气体的浓度，并在显示器上提供浓度的视觉指示。气体检测器可以感测各种不同气体的存在。检测气体的气体浓度基于放大器产生的气体感测信号的大小，当检测器处于受控环境中时在校准程序期间产生的校准信号以及当检测器处于受控环境时产生的误差信号一个无气的环境。

3. 外观设计

USD330521S Combustible gas indicator 失效
公开(公告)号：USD330521S
公开(公告)日：1992-10-27
申请号：US595930
申请日：1990-10-11
申请人： Rudy Krolopp
设计人： Rudy Krolopp

4. 发明授权

US5897836A Thermal gas sensing apparatus 失效
标题翻译：热气体感测装置
公开(公告)号：US5897836A
公开(公告)日：1999-04-27
申请号：US770133
申请日：1996-12-19
申请人： Dennis Martell , Jan Krcma
发明人： Dennis Martell , Jan Krcma
IPC分类号： G01N27/18 , G01N27/04
CPC分类号： G01N27/185
摘要： A thermal gas sensing apparatus for a gas detector is provided with a gas compartment containing a gas, a gas sensor exposed to the gas in the gas compartment, and a temperature sensor exposed to the gas in the gas compartment. The gas sensing apparatus includes a circuit for generating a gas signal having a magnitude which relates to the heat capacity of the gas and a circuit for generating a temperature signal having a magnitude which relates to the temperature of the gas. The apparatus includes a circuit for supplying a variable magnitude of electrical current through the gas sensor to cause the resistance of the gas sensor to remain substantially constant. The apparatus also includes a difference amplifier for generating a gas concentration signal based upon the temperature signal and the gas signal.
摘要翻译：一种用于气体检测器的热气体检测装置设置有包含气体的气室，暴露于气室中的气体的气体传感器和暴露于气室中的气体的温度传感器。气体感测装置包括用于产生气体信号的电路，该气体信号具有与气体的热容有关的大小，以及用于产生具有与气体温度有关的温度的温度信号的电路。该装置包括用于通过气体传感器供应可变大小的电流以使气体传感器的电阻基本上保持不变的电路。该装置还包括差分放大器，用于基于温度信号和气体信号产生气体浓度信号。

5. 发明授权

US5827948A Gas sensor with liquid-tight seal 失效
标题翻译：气体传感器具有液密密封
公开(公告)号：US5827948A
公开(公告)日：1998-10-27
申请号：US889648
申请日：1997-07-08
申请人： Dennis Martell , Richard Grove Warburton , Laura Ann Lindner , Juergen Lindner
发明人： Dennis Martell , Richard Grove Warburton , Laura Ann Lindner , Juergen Lindner
IPC分类号： G01N27/49 , G01N33/00 , G01N21/77
CPC分类号： G01N27/4045 , G01N33/004
摘要： A gas sensor assembly having a first housing portion having a receptacle formed therein and a second housing portion in the form of a cover. A gas-sensing agent is disposed in the receptacle, and a working electrode, a counter electrode, and a reference electrode provided on a single electrode support sheet are disposed in fluid contact with the gas-sensing agent. The first housing portion is provided with three conductive housing portions which are in electrical contact with the three electrodes, and the cover maintains pressurized contact between the three conductive housing portions and the three corresponding electrodes. The gas sensor may be provided with two different types of leakage detectors to sense leakage of the gas-sensing agent from the sensor.
摘要翻译：一种气体传感器组件，其具有第一壳体部分和第二壳体部分，第一壳体部分具有形成在其中的容器和第二壳体部分。气体感应剂设置在容器中，并且设置在单个电极支撑片上的工作电极，对电极和参考电极设置成与气体感测剂流体接触。第一壳体部分设置有与三个电极电接触的三个导电壳体部分，并且盖保持三个导电壳体部分和三个对应电极之间的加压接触。气体传感器可以设置有两种不同类型的泄漏检测器，以感测气体感测剂从传感器的泄漏。

6. 发明授权

US5744697A Gas sensor with conductive housing portions 失效
标题翻译：具有导电壳体部分的气体传感器
公开(公告)号：US5744697A
公开(公告)日：1998-04-28
申请号：US515688
申请日：1995-08-16
申请人： Dennis Martell , Piers Richard Grove Warburton , Laura Ann Lindner , Juergen Lindner
发明人： Dennis Martell , Piers Richard Grove Warburton , Laura Ann Lindner , Juergen Lindner
IPC分类号： G01N27/49 , G01N33/00 , G01N21/77
CPC分类号： G01N27/4045 , G01N33/004
摘要： A gas sensor assembly having a first housing portion having a receptacle formed therein and a second housing portion in the form of a cover. A gas-sensing agent is disposed in the receptacle, and a working electrode, a counter electrode, and a reference electrode provided on a single electrode support sheet are disposed in fluid contact with the gas-sensing agent. The first housing portion is provided with three conductive housing portions which are in electrical contact with the three electrodes, and the cover maintains pressurized contact between the three conductive housing potions and the three corresponding electrodes. The gas sensor may be provided with two different types of leakage detectors to sense leakage of the gas-sensing agent from the sensor.
摘要翻译：一种气体传感器组件，其具有第一壳体部分和第二壳体部分，第一壳体部分具有形成在其中的容器和第二壳体部分。气体感应剂设置在容器中，并且设置在单个电极支撑片上的工作电极，对电极和参考电极设置成与气体感测剂流体接触。第一壳体部分设置有与三个电极电接触的三个导电壳体部分，并且盖保持三个导电壳体部分和三个相应电极之间的加压接触。气体传感器可以设置有两种不同类型的泄漏检测器，以感测气体感测剂从传感器的泄漏。

7. 发明授权

US5777208A Gas sensor with pressurized seal 失效
标题翻译：气体传感器带加压密封
公开(公告)号：US5777208A
公开(公告)日：1998-07-07
申请号：US734899
申请日：1996-10-22
申请人： Dennis Martell , Richard Grove Warburton , Laura Ann Lindner , Juergen Lindner
发明人： Dennis Martell , Richard Grove Warburton , Laura Ann Lindner , Juergen Lindner
IPC分类号： G01N27/49 , G01N33/00 , G01N27/26
CPC分类号： G01N27/4045 , G01N33/004
摘要： A gas sensor assembly having a first housing portion having a receptacle formed therein and a second housing portion in the form of a cover. A gas-sensing agent is disposed in the receptacle, and a working electrode, a counter electrode, and a reference electrode provided on a single electrode support sheet are disposed in fluid contact with the gas-sensing agent. The first housing portion is provided with three conductive housing portions which are in electrical contact with the three electrodes, and the cover maintains pressurized contact between the three conductive housing portions and the three corresponding electrodes. The gas sensor may be provided with two different types of leakage detectors to sense leakage of the gas-sensing agent from the sensor.
摘要翻译：一种气体传感器组件，其具有第一壳体部分和第二壳体部分，第一壳体部分具有形成在其中的容器和第二壳体部分。气体感应剂设置在容器中，并且设置在单个电极支撑片上的工作电极，对电极和参考电极设置成与气体感测剂流体接触。第一壳体部分设置有与三个电极电接触的三个导电壳体部分，并且盖保持三个导电壳体部分和三个对应电极之间的加压接触。气体传感器可以设置有两种不同类型的泄漏检测器，以感测气体感测剂从传感器的泄漏。

8. 发明授权

US5987965A Gas sensor with conductive housing portions 有权
标题翻译：具有导电壳体部分的气体传感器
公开(公告)号：US5987965A
公开(公告)日：1999-11-23
申请号：US172487
申请日：1998-10-14
申请人： Dennis Martell , Richard Grove Warburton , Laura Ann Lindner , Juergen Lindner
发明人： Dennis Martell , Richard Grove Warburton , Laura Ann Lindner , Juergen Lindner
IPC分类号： G01N27/49 , G01N33/00 , G01N21/77
CPC分类号： G01N27/4045 , G01N33/004
摘要： A gas sensor assembly having a first housing portion having a receptacle formed therein and a second housing portion in the form of a cover. A gas-sensing agent is disposed in the receptacle, and a working electrode, a counter electrode, and a reference electrode provided on a single electrode support sheet are disposed in fluid contact with the gas-sensing agent. The first housing portion is provided with three conductive housing portions which are in electrical contact with the three electrodes, and the cover maintains pressurized contact between the three conductive housing portions and the three corresponding electrodes. The gas sensor may be provided with two different types of leakage detectors to sense leakage of the gas-sensing agent from the sensor.
摘要翻译：一种气体传感器组件，其具有第一壳体部分和第二壳体部分，第一壳体部分具有形成在其中的容器和第二壳体部分。气体感应剂设置在容器中，并且设置在单个电极支撑片上的工作电极，对电极和参考电极设置成与气体感测剂流体接触。第一壳体部分设置有与三个电极电接触的三个导电壳体部分，并且盖保持三个导电壳体部分和三个对应电极之间的加压接触。气体传感器可以设置有两种不同类型的泄漏检测器，以感测气体感测剂从传感器的泄漏。

9. 发明授权

US5351037A Refrigerant gas leak detector 失效
标题翻译：制冷剂气体检漏仪
公开(公告)号：US5351037A
公开(公告)日：1994-09-27
申请号：US7594
申请日：1993-01-22
申请人： Dennis Martell , Jan Krcma
发明人： Dennis Martell , Jan Krcma
IPC分类号： G01M3/16 , G01M3/18 , G01M3/22 , G01N27/70 , G08B17/10
CPC分类号： G01N27/70 , G01M3/16 , G01M3/188 , G01M3/228
摘要： A refrigerant gas leak detector for detecting the location of leaks of refrigerant gas such as halogen has a sensing tip with a pair of electrodes across which a relatively high voltage is generated to cause a corona current to pass through the electrodes. The voltage applied across the electrodes is varied to maintain the corona current through the electrodes at a substantially constant magnitude. The leak detector includes a gas sensing circuit that detects changes in the concentration of refrigerant gas by sensing the voltage applied to the electrodes. The sensitivity of the gas sensing circuit is automatically varied based on the concentration of refrigerant gas present. The leak detector includes a signal generating circuit that causes a number of audible and visual indications to be generated based on the concentration of refrigerant gas sensed as well as other operating conditions. The leak detector also has a circuit for detecting the presence of an abnormal operating condition, which is assumed to occur when the corona current falls below its substantially constant magnitude.
摘要翻译：用于检测诸如卤素的制冷剂气体的泄漏位置的制冷剂气体泄漏检测器具有感测尖端，其具有一对电极，通过该电极产生相对高的电压以使电晕电流通过电极。改变施加在电极两端的电压以维持电极电流以基本上恒定的大小。泄漏检测器包括气体感测电路，其通过感测施加到电极的电压来检测制冷剂气体的浓度的变化。气体检测回路的灵敏度根据存在的制冷剂气体的浓度自动变化。泄漏检测器包括信号发生电路，其基于感测的制冷剂气体的浓度以及其它操作条件而产生多个可听见和可视指示。泄漏检测器还具有用于检测异常运行状态的存在的电路，假设在电晕电流低于其基本上恒定的幅度时发生。

10. 外观设计

USD319596S Gas detector 失效
公开(公告)号：USD319596S
公开(公告)日：1991-09-03
申请号：US347789
申请日：1989-05-05
申请人： Rudy Krolopp
设计人： Rudy Krolopp

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