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1. 发明授权

US07441569B2 Will call wireless tank level monitoring system 有权
标题翻译：将呼叫无线坦克级监控系统
公开(公告)号：US07441569B2
公开(公告)日：2008-10-28
申请号：US11117099
申请日：2005-04-28
申请人： Benjamin N. Lease
发明人： Benjamin N. Lease
IPC分类号： B65B1/30 , E03B7/07 , G01F19/00
CPC分类号： G01F23/18 , G01F23/0069 , Y10T137/8342
摘要： A wireless tank level monitoring system is provided. The system includes a transmitter that is located in close proximity to the storage tank. The transmitter is coupled to a remote-ready tank level gauge, which provides a ratio-metric voltage output proportional to the liquid volume inside the tank. The transmitter periodically monitors the output from the level gauge and transmits the information to a base station located remotely from the storage tank. The base station displays the tank level numerically in percent full, graphically with a bar chart, or both. A conspicuous visual indication is provided by the base station when the tank level drops below a predetermined set point. In battery powered applications, the base station also reads and provides a visual indication of a low battery condition for both the transmitter and base station.
摘要翻译：提供无线水箱监控系统。该系统包括位于紧邻储罐的发射器。发射机耦合到远程准备好的液位计，其提供与罐内的液体体积成比例的比率公制电压输出。发射机周期性地监测电平计的输出，并将信息发送到远离储罐的基站。基站以百分比满量程数字显示油箱液位，以图形形式显示柱形图，或两者都显示。当坦克水平低于预定设定点时，由基站提供显着的视觉指示。在电池供电的应用中，基站还读取和提供发射机和基站两者的低电量条件的可视指示。

2. 发明授权

US5861811A Fluid sensor 失效
标题翻译：流体传感器
公开(公告)号：US5861811A
公开(公告)日：1999-01-19
申请号：US832560
申请日：1997-04-02
申请人： Benjamin N. Lease , Lee Paul Dollison
发明人： Benjamin N. Lease , Lee Paul Dollison
IPC分类号： G01F23/26 , H01R13/66 , G08B21/00
CPC分类号： G01F23/266 , G01F23/265 , G01F23/268 , H01R13/6683
摘要： A fluid sensor (100) senses a level of fluid (20) in a receptacle (10). The fluid sensor comprises a detector assembly (200) for detecting fluid and comprises sensor circuitry. The detector assembly comprises a detector body (201) comprising an electrically insulative material and defining first and second surfaces (210, 220) in a predetermined spaced relation. The detector body defines a space (250) between the first and second surfaces and defines a port (255, 257) for allowing fluid to pass in the space between the first and second surfaces. The detector assembly also comprises first and second conductive layers (212, 222) deposited over at least a portion of the first and second surfaces of the detector body, respectively. The sensor circuitry is conductively coupled to at least one of the first and second conductive layers for generating an electrical signal based on whether fluid is present in the space between the first and second surfaces.
摘要翻译：流体传感器（100）感测容器（10）中的流体（20）的水平。流体传感器包括用于检测流体并包括传感器电路的检测器组件（200）。检测器组件包括检测器主体（201），其包括电绝缘材料并且以预定的间隔关系限定第一和第二表面（210,220）。检测器主体在第一和第二表面之间限定一个空间（250），并且限定一个用于允许流体在第一和第二表面之间的空间中通过的端口（255,257）。检测器组件还包括分别沉积在检测器主体的第一和第二表面的至少一部分上的第一和第二导电层（212,222）。传感器电路与第一和第二导电层中的至少一个导电耦合，用于基于流体是否存在于第一和第二表面之间的空间中产生电信号。

3. 发明申请

US20090243863A1 Intrinsically Safe Cellular Tank Monitor For Liquified Gas and Cryogenic Liquids 审中-公开
标题翻译：液化气和低温液体本质安全型蜂窝罐监测仪
公开(公告)号：US20090243863A1
公开(公告)日：2009-10-01
申请号：US12059424
申请日：2008-03-31
申请人： Benjamin N. Lease
发明人： Benjamin N. Lease
IPC分类号： G08B21/00
CPC分类号： G01F23/0076
摘要： An intrinsically safe cellular tank level monitor for use with consumer LP storage tanks is provided. The cellular monitor is adapted to read the LP storage tank gauge and transmit the level information through a cellular network to a data center. The data center may be part of or may communicate with a fuel delivery service company serving the residential consumer. The cellular monitor is a smart device that allows two-way communication over the cellular network. Control logic within the cellular monitor controls transmission of data to the data center as well as the determination and transmission of alarm conditions as determined by the local cellular monitor.
摘要翻译：提供了一种用于消费者LP储罐的本质安全的蜂窝罐液位监视器。蜂窝监视器适用于读取LP储罐表，并通过蜂窝网络将数据信号传输到数据中心。数据中心可能是与服务于住宅消费者的燃料输送服务公司的一部分或可以通信。蜂窝监视器是允许通过蜂窝网络进行双向通信的智能设备。蜂窝监控器内的控制逻辑控制数据传输到数据中心，以及由本地蜂窝监视器确定的报警条件的确定和传输。

4. 发明授权

US06529017B2 Capacitance level measurement circuit and system 有权
公开(公告)号：US06529017B2
公开(公告)日：2003-03-04
申请号：US09835272
申请日：2001-04-13
申请人： Barry E. Martin , Stephen Tymoszuk , Benjamin N. Lease
发明人： Barry E. Martin , Stephen Tymoszuk , Benjamin N. Lease
IPC分类号： G01R2726
CPC分类号： G01F23/266 , G01F23/26 , G01F23/268
摘要： A capacitance measurement circuit and probe includes a drive circuit couplable to a constant-current source, a threshold detector, a probe capacitor, and a reference capacitor. The circuit includes a plurality of switches being actuatable to alternately couple the current source to the probe capacitor and to the reference capacitor. The drive circuit is configured to alternately generate a signal of linear ramp waveform having a slope that is proportional to the magnitude of capacitance of the probe capacitor and of the reference capacitor. The voltage differential between the probe capacitor and reference capacitor are actively nulled to nominally eliminate a parasitic capacitance therebetween.

5. 发明授权

US5446444A Capacitive threshold detector test circuit 失效
标题翻译：电容阈值检测器测试电路
公开(公告)号：US5446444A
公开(公告)日：1995-08-29
申请号：US169340
申请日：1993-12-17
申请人： Benjamin N. Lease
发明人： Benjamin N. Lease
IPC分类号： G01F23/26 , G01F25/00 , G01R27/26 , G01R31/28 , G08B29/00 , G01R31/02
CPC分类号： G01F25/0076 , G01F23/265 , G01F23/266 , G01R31/2829
摘要： A test circuit for testing operation of a liquid level detector. The liquid level detector includes a probe that is placed at a test site. A control circuit monitors changes in capacitance of the probe due to changes in the liquid level at the test site. A test switch grounds an input to the probe which and causes the control circuit to sense an alarm condition. If the detector does not activate an alarm when the test switch is actuated, the detector is not properly functioning and repair or replacement of the level detector is needed.
摘要翻译：用于测试液位检测器操作的测试电路。液位检测器包括放置在测试位置的探针。控制电路监测由于测试点的液面变化引起的探针的电容变化。测试开关将探头的输入接地，并使控制电路感测到报警状态。如果检测器在启动测试开关时未激活报警，检测器功能不正常，需要维修或更换液位探测器。

6. 发明申请

US20090177767A1 Local Web Server Based Controller 审中-公开
标题翻译：本地Web服务器控制器
公开(公告)号：US20090177767A1
公开(公告)日：2009-07-09
申请号：US11970354
申请日：2008-01-07
申请人： Benjamin N. Lease
发明人： Benjamin N. Lease
IPC分类号： G06F15/16
CPC分类号： H04L51/04 , H04L51/38
摘要： A system for monitoring parameters related to a product in a storage tank is provided. The system includes a monitor operably coupled to the storage tank, an internet protocol (IP) enabled electronic device, and an internet protocol enabled controller. The controller is in communication with the monitor and the electronic device. The controller and the electronic device communicate through an internet regarding information observed by the monitor.
摘要翻译：提供了一种用于监视与存储罐中的产品相关的参数的系统。该系统包括可操作地耦合到存储罐的监视器，启用互联网协议（IP）的电子设备和启用了因特网协议的控制器。控制器与显示器和电子设备通信。控制器和电子设备通过互联网与监视器观察到的信息进行通信。

7. 发明授权

US06748805B2 Multiple input level sensor 有权
标题翻译：多输入电平传感器
公开(公告)号：US06748805B2
公开(公告)日：2004-06-15
申请号：US10051954
申请日：2002-01-17
申请人： Benjamin N. Lease
发明人： Benjamin N. Lease
IPC分类号： G01F2372
CPC分类号： G01F23/0061
摘要： A liquid level measuring apparatus is provided, which includes an input circuit configured to receive electrical signals from level sensors configured to provide an electrical signal proportional to a liquid level in a tank portion. The input circuit provides a single output signal proportional to the combined liquid level in one or more liquid storage vessel portions. The apparatus may further include or be connected to a transmitter such as a wireless transmitting device.
摘要翻译：提供了一种液位测量装置，其包括输入电路，该输入电路被配置为从水平传感器接收电信号，该电平传感器被配置为提供与罐部分中的液位成比例的电信号。输入电路提供与一个或多个液体存储容器部分中的组合液面成比例的单个输出信号。该装置还可以包括或连接到诸如无线发射装置的发射机。

8. 发明授权

US5838241A Liquid level transmitter 失效
标题翻译：液位变送器
公开(公告)号：US5838241A
公开(公告)日：1998-11-17
申请号：US768528
申请日：1996-12-18
申请人： Benjamin N. Lease , Otis P. Pierson
发明人： Benjamin N. Lease , Otis P. Pierson
IPC分类号： G01F23/26 , G08B21/00
CPC分类号： G01F23/266 , G01F23/268
摘要： A level detector circuit for detecting a level of immersion of an elongated probe within a liquid. The level detection circuit includes a first set of transistors. One of these transistors charges an elongated probe and a second charges a capacitor. A reference current source provides a reference current based on the charging current provided to the elongated probe by the first transistor and an additional transistor which also charges the probe at a rate such that the voltage on the capacitor and the probe are maintained the same. A monitoring circuit develops an analog level signal based on the current provided by the reference current source. This analog level signal is converted by the combination of an analog to digital circuit and a microprocessor for providing a pulse frequency modulated communications signal corresponding to the analog level signal which in turn is related to the length of the probe immersed within the liquid.
摘要翻译：一种液位检测器电路，用于检测细长探针在液体内的浸入水平。电平检测电路包括第一组晶体管。这些晶体管中的一个为细长的探针充电，而第二个对电容器充电。参考电流源基于由第一晶体管提供给细长探针的充电电流和附加晶体管提供参考电流，该额外晶体管还以使得电容器和探针上的电压保持相同的速率对探针充电。监控电路基于由参考电流源提供的电流来产生模拟电平信号。该模拟电平信号由模数电路和微处理器的组合转换，用于提供对应于模拟电平信号的脉冲频率调制通信信号，该模拟电平信号又与浸没在液体中的探头的长度有关。

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