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1. 发明授权

US06688329B2 Water feeder controller for boiler 有权
公开(公告)号：US06688329B2
公开(公告)日：2004-02-10
申请号：US09900377
申请日：2001-07-06
申请人： Christopher L. Murray , Richard A. Lyons
发明人： Christopher L. Murray , Richard A. Lyons
IPC分类号： G05D912
CPC分类号： G05D9/12 , Y10T137/0324 , Y10T137/7306 , Y10T137/8342 , Y10T137/86389 , Y10T137/86413 , Y10T307/779 , Y10T307/957
摘要： A water feeder controller for a boiler monitors a low water cutoff sensor in a boiler and uses a feed timer to feed water to the boiler for a predetermined feed period of time. The feed timer brings the water level in the boiler well above the low water cutoff sensor. The feed timer supplies water to the boiler only if the low water cutoff sensor continues to indicate a low water level for a delay period of time measured by a delay timer. A resettable display indicates the quantity of water supplied by the water feeder to the boiler based on a feed counter incremented during water feeding. A manual feed button allows water to be manually fed to the boiler. The quantity of water manually supplied to the boiler is also shown on the display. The feed timer and delay timer are preferably implemented in software in a microcontroller in the water feeder controller. A lockout loop in the software prevents overfeeding of water to the boiler in the event of a failure of the low water cutoff sensor.

2. 发明授权

US06615861B2 Liquid cylinder manifold system 有权
公开(公告)号：US06615861B2
公开(公告)日：2003-09-09
申请号：US09839580
申请日：2001-04-20
申请人： Paul Drube , Paul Sjogren
发明人： Paul Drube , Paul Sjogren
IPC分类号： G05D912
CPC分类号： G05D7/0658 , Y10T137/3124 , Y10T137/313
摘要： A dispensing system allows cryogenic liquid to be dispensed from either a primary bank manifold and associated cylinders or a secondary bank manifold and associated cylinders. Each manifold includes a gas header and a liquid header. The associated cylinders communicate with the gas header through flexible lines and excess flow check valves and the liquid header through flexible lines and spring-loaded check valves. An automatic control system selects between dispensing from the primary bank manifold or the secondary bank manifold. A pressure gauge detects the pressure of the cryogenic liquid from the dispensing manifold. The pressure gauge is in communication with a controller which opens and closes the appropriate valves to begin dispensing cryogenic liquid from the originally idle manifold if the detected pressure drops below a predetermined minimum. After the manifold is switched over, the controller checks the pressure in the non-selected manifold. If pressure buildup occurs in the non-selected manifold due to residual liquid in the associated cylinders, the system is reconfigured to dispense the residual liquid.

3. 发明授权

US06598617B2 Cascaded variable bias feedforward and feedback flow and level control system 失效
公开(公告)号：US06598617B2
公开(公告)日：2003-07-29
申请号：US10118131
申请日：2002-04-06
申请人： Guy Kevin Spicer
发明人： Guy Kevin Spicer
IPC分类号： G05D912
CPC分类号： G05D9/12 , Y10T137/7303 , Y10T137/7306 , Y10T137/7313 , Y10T137/8342 , Y10T137/86187 , Y10T137/86196
摘要： A control system for maintaining the liquid levels in a plurality of reservoirs connected in series includes one or more nested control modules. The nested control module, one for each reservoir, includes a proportional only level controller in electrical communication with the respective level sensor of each respective reservoir and is adapted to produce an output that becomes a set point for one or more respective PID flow controllers adapted to control the respective outflows of said respective reservoirs. The control system results in maintaining liquid levels in the reservoirs while substantially eliminating flow and level oscillations.

4. 发明授权

US06422263B1 Nested and cascaded variable bias feedfoward and feedback flow and level control system 失效
标题翻译：嵌套和级联可变偏置馈电和反馈流量和电平控制系统
公开(公告)号：US06422263B1
公开(公告)日：2002-07-23
申请号：US09655296
申请日：2000-09-05
申请人： Guy Kevin Spicer
发明人： Guy Kevin Spicer
IPC分类号： G05D912
CPC分类号： G05D9/12 , Y10T137/7303 , Y10T137/7306 , Y10T137/7313 , Y10T137/8342 , Y10T137/86187 , Y10T137/86196
摘要： A control system for maintaining the liquid levels in a plurality of reservoirs connected in series includes a parenthetical control module and one or more nested control modules. The parenthetical control module includes a proportional only level controller in electrical communication with the level sensor of said last reservoir (VOUT) in the series and is adapted to produce an output signal that becomes a set point for one or more PID flow controllers controlling the inflow (FIN) into the first reservoir (V1) in the series. The nested control module, one for each reservoir upstream of said last reservoir (VOUT), includes a proportional only level controller in electrical communication with the respective level sensor of each respective upstream reservoir and is adapted to produce an output that becomes a set point for one or more PID flow controllers adapted to control the respective outflows of said respective upstream reservoirs. The control system results in maintaining liquid levels in the reservoirs while substantially eliminating flow and level oscillations.
摘要翻译：用于维持串联连接的多个储存器中的液位的控制系统包括括号控制模块和一个或多个嵌套控制模块。括号控制模块包括与该串联的所述最后一个储存器（VOUT）的液位传感器电通信的比例仅电平控制器，并适于产生一个输出信号，该输出信号成为控制流入的一个或多个PID流量控制器的设定点（FIN）进入该系列的第一个水库（V1）。嵌套控制模块，一个用于在所述最后一个储存器（VOUT）上游的每个储存器，包括与每个相应的上游储存器的各个水平传感器电通信的比例仅电平控制器，并适于产生成为设定点的输出一个或多个PID流量控制器，其适于控制所述各个上游储存器的相应流出。控制系统导致在储存器中保持液位，同时基本上消除流动和水平振荡。

5. 发明授权

US06196253B1 Continuously operated condensate drain valve 失效
标题翻译：连续运行的冷凝水排放阀
公开(公告)号：US06196253B1
公开(公告)日：2001-03-06
申请号：US09075631
申请日：1998-05-11
申请人： H. Worth Love
发明人： H. Worth Love
IPC分类号： G05D912
CPC分类号： F16T1/00 , F16K13/10 , F16K31/06 , Y10T137/3052 , Y10T137/3105
摘要： The invention is a continuously operated condensate drain valve operating in real-time response to the presence of an electrically conductive media in the interior chamber of the condensate drain valve. The invented valve includes a valve body, a subminiature sensor embedded in the valve body and an electric control circuit electrically connected to the sensor. Because the sensor is located in the valve body and because the control circuit does not include a delay means, the invented valve can operate at an extremely high cycle rate thereby keeping the air compression system virtually condensate free. Consequently, the invented valve enables an air compressor to maintain optimal capacity and to operate at an unprecedented level of efficiency.
摘要翻译：本发明是一种连续运行的冷凝水排放阀，可以实时响应冷凝水排出阀的内部腔室中导电介质的存在。本发明的阀包括阀体，嵌入在阀体中的超小型传感器和与传感器电连接的电控制回路。因为传感器位于阀体中，并且由于控制电路不包括延迟装置，所以本发明的阀可以以非常高的循环速率运行，从而保持空气压缩系统几乎不凝结。因此，本发明的阀使得空气压缩机保持最佳容量并以前所未有的效率水平运行。

6. 发明授权

US06662084B2 Data processing system 失效
公开(公告)号：US06662084B2
公开(公告)日：2003-12-09
申请号：US10075288
申请日：2002-02-15
申请人： Mitsuru Hiraki , Takayasu Ito
发明人： Mitsuru Hiraki , Takayasu Ito
IPC分类号： G05D912
CPC分类号： H02M3/155 , G06F1/26 , G06F1/32 , H02M2001/0032 , H02M2001/0045 , Y02B70/16 , Y10T307/696
摘要： For an internal circuit having a first operation mode consuming a first operational current and a second operation mode consuming a second operational current, which is smaller than the first operational current, a first power source regulator for stepping down a predefined output power supply voltage from an input power supply voltage and having a current supply ability corresponding to the first operational current of the internal circuit and a second power source gulator having a current supply ability corresponding to the second operational current are combined in order to, under the control of a power supply control unit, operate the first step-down type regulator in response to a first control signal instructing the first operation mode in the internal circuit and to operate the second step-down type regulator in response to a second control signal instructing the second operation mode. In this case, the internal circuit and power supply control unit are provided in one semiconductor integrated circuit device so that reduced power consumption and power supply switching in accordance with the operation mode can be achieved.

7. 发明授权

US06588443B2 Method of draining condensate and condensate drain device 有权
标题翻译：排水冷凝水排水装置的方法
公开(公告)号：US06588443B2
公开(公告)日：2003-07-08
申请号：US10172237
申请日：2002-06-14
申请人： Herbert Schlensker , Berthold Koch
发明人： Herbert Schlensker , Berthold Koch
IPC分类号： G05D912
CPC分类号： F16T1/00 , Y10T137/0324 , Y10T137/3024 , Y10T137/3052
摘要： The invention relates to a method of draining condensate from a reservoir that communicates with a trap via a drain pipe. The reservoir is subjected to a gas pressure p(reservoir) that can be below atmospheric pressure p(air) or above atmospheric pressure p(air). The method involves the following steps: a) collecting condensate in the reservoir, b) acquiring the fill level by means of a level meter, c) providing a control pressure p(control) which, in any operating conditions of the compressed gas system, is above the pressure p(reservoir) in the reservoir and above atmospheric pressure p(air), d) providing, under control, a control conduit input of an exhaust valve, which is assigned to the reservoir and is intended to drain the condensate collected in the reservoir, with a pressure p(input).
摘要翻译：本发明涉及一种从通过排水管与捕集器连通的储存器排出冷凝物的方法。储存器经受可以低于大气压p（空气）或高于大气压p（空气）的气体压力p（储存器）。该方法包括以下步骤：a）收集储存器中的冷凝物，b）通过液位计获取填充量; c）提供控制压力p（控制），在压缩气体系统的任何操作条件下，高于大气压p（空气）中的压力p（储层），d）在控制下提供排放阀的控制管道输入，该排放阀被分配到储存器并用于排出收集的冷凝物在水库中，压力为p（输入）。

8. 发明授权

US06311711B1 Method of regulating the level in a buffer tank 失效
标题翻译：调节缓冲罐水位的方法
公开(公告)号：US06311711B1
公开(公告)日：2001-11-06
申请号：US09380152
申请日：1999-11-01
申请人： Tomas Skoglund
发明人： Tomas Skoglund
IPC分类号： G05D912
CPC分类号： G05D9/12 , Y10T137/0324 , Y10T137/7287 , Y10T137/8342
摘要： The disclosure relates to a method of regulating the level in a buffer tank (4). By means of conduits (2, 6), the tank (4) is connected to different parts in or peripheral to a process (1). There is an inflow F1 in the incoming conduit (2) and an outflow F2 in the outgoing conduit (6). The method comprises periodic measurements of the inflow F1 and also of the level L of the product which is held in the tank (4). The method also encompasses calculated and indicated level norm values which are indicated such that the level norm value is high when the outflow F2 out of the tank (4) is slight and the level norm value is low when the outflow F2 out of the tank (4) is great.
摘要翻译：本公开涉及一种调节缓冲罐（4）中的液位的方法。通过管道（2,6），罐（4）连接到工艺（1）中或周围的不同部件。输入管道（2）中有一个入口F1和出口管道（6）中的一个出口F2。该方法包括流入F1的周期性测量以及保持在罐（4）中的产品的水平L的周期性测量。该方法还包括计算和指示的水平范数值，其被指示为当罐（4）中的流出物F2出现轻微且水平范围值低时，水平范数值较高 4）很棒

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