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1. 发明授权

US5542279A Method of incorporating wide tolerance set point potentiometers into devices with fixed orientation setpoint indicator scales 失效
标题翻译：将宽公差设定点电位计并入具有固定方位设定点指示器的设备的方法
公开(公告)号：US5542279A
公开(公告)日：1996-08-06
申请号：US316584
申请日：1994-09-30
申请人： John L. Erdman , Marcus D. Stoner
发明人： John L. Erdman , Marcus D. Stoner
IPC分类号： G01D5/165 , G01D18/00 , G01R35/00
CPC分类号： G01D5/165 , G01D18/00 , Y10T29/49007
摘要： A manufacturing method for control devices which incorporate potentiometers whose resistance characteristics other than linearity are subject to unit-to-unit variations, and in which a wiper positioning knob in cooperation with a fixed scale indicates the set point for the controlled parameter, the method involving mounting the potentiometer in its theoretically ideal orientation in the device, affixing the knob to the potentiometer so that a pointer thereon points to the desired location on the device for a predetermined point on the scale when the wiper is positioned to control the parameter to the set point corresponding to the predetermined point on the scale, and marking the scale on the device so that the predetermined point on the scale is at its desired location on the device.
摘要翻译：一种控制装置的制造方法，其包括电位器，其电阻特性不是线性度的单位变化，其中与固定刻度配合的刮水器定位旋钮表示受控参数的设定点，该方法涉及将电位计安装在设备理论上的理想方向，将旋钮固定在电位计上，使其上的指针指向设备上的所需位置，当刮水器被定位成将参数控制到设定值时点对应于刻度上的预定点，并标记设备上的刻度，使得刻度尺上的预定点位于设备上的所需位置。

2. 发明授权

US5076780A Digital controller component failure detection for gas appliance ignition function 失效
标题翻译：数字控制器部件故障检测用于燃气器具点火功能
公开(公告)号：US5076780A
公开(公告)日：1991-12-31
申请号：US596413
申请日：1990-10-10
申请人： John L. Erdman
发明人： John L. Erdman
IPC分类号： F23N5/12 , F23N5/18 , F23N5/20 , F23N5/24
CPC分类号： F23N5/242 , F23N5/203 , F23N2023/08 , F23N2025/06 , F23N2031/10 , F23N2033/06 , F23N2035/14 , F23N5/12 , F23N5/18
摘要： A digital control system, for a gas-fired, forced combustion air heating appliance, controls operation of a combustion air blower and a gas valve as a function of essentially square wave input signals derived from a thermostat, a combustion air proving sensor switch, and a gas valve control relay. When a first input signal from the thermostat demands heat, the control system first checks for the presence of a second input signal (which indicates the status of the combustion air sensor switch) before starting the combustion air blower. If the second input signal indicates that combustion air is being delivered before the combustion air blower has started, the control system immediately halts the ignition sequence. If the combustion air sensor switch is functioning properly, the ignition sequence continues and the control system checks a third input signal to determine the status of the contacts of the gas valve relay. If the third input signal indicates that the relay contacts which power the gas valve are already closed before the gas valve relay coil is energized, the control system halts the ignition sequence by turning off the combustion air blower, causing the combustion air sensor switch to open and shut off power to the gas valve.
摘要翻译：用于燃气的强制燃烧空气加热设备的数字控制系统控制作为基本上由恒温器，燃烧空气检测传感器开关和方形波输入信号得到的方波输入信号的燃烧空气鼓风机和燃气阀的操作，气阀控制继电器。当来自恒温器的第一输入信号需要热量时，控制系统首先在启动燃烧鼓风机之前检查是否存在第二输入信号（其指示燃烧空气传感器开关的状态）。如果第二输入信号表示在燃烧空气鼓风机开始之前燃烧空气正在输送，则控制系统立即停止点火顺序。如果燃烧空气传感器开关正常工作，点火顺序继续，控制系统检查第三个输入信号以确定气体继电器的触点状态。如果第三输入信号指示在气体阀继电器线圈通电之前已经关闭了气体阀的继电器触点，则控制系统通过关闭燃烧空气鼓风机来停止点火顺序，使得燃烧空气传感器开关打开并关闭燃气阀的电源。

3. 发明授权

US4789329A Thermostatically operated fuel valve control circuit 失效
标题翻译：恒温操作燃油阀控制电路
公开(公告)号：US4789329A
公开(公告)日：1988-12-06
申请号：US158443
申请日：1988-02-22
申请人： John E. Bohan, Jr. , John L. Erdman , Marvin D. Nelson , James W. Ratz
发明人： John E. Bohan, Jr. , John L. Erdman , Marvin D. Nelson , James W. Ratz
IPC分类号： F23N5/20 , F23Q9/08
CPC分类号： F23N5/203 , F23N2027/36 , F23N2029/00
摘要： A control circuit for a fuel valve in a gas fired furnace controlled by an electronic thermostat is disclosed. The thermostat requires a load current to properly operate, and a pickup and hold circuit along with a time delay circuit are integrated to control a load current circuit to provide the correct load current for the thermostat.
摘要翻译：公开了一种由电子恒温器控制的燃气炉中的燃料阀控制电路。恒温器需要负载电流才能正常工作，并且采集和保持电路与时间延迟电路一起被集成以控制负载电流电路，为恒温器提供正确的负载电流。

4. 发明授权

US5426776A Microprocessor watchdog circuit 失效
标题翻译：微处理器看门狗电路
公开(公告)号：US5426776A
公开(公告)日：1995-06-20
申请号：US159387
申请日：1993-11-30
申请人： John L. Erdman
发明人： John L. Erdman
IPC分类号： G06F11/00 , G06F11/34
CPC分类号： G06F11/0757
摘要： A microprocessor watchdog circuit in which a voltage less than a reference voltage is supplied to a comparator substantially only in response to a pulse train status signal having a predetermined repetition rate. Repetition rate sensitivity results from a charge pump connected to receive the status pulse train through a series connected resistor and capacitor having a suitable time constant. The comparator output terminal, at which a reset signal is produced, provides a low impedance path to ground if the charge pump removes charge from a second capacitor more slowly than charge is supplied thereto through a charging resistor, thereby increasing the voltage supplied to the comparator.
摘要翻译：一种微处理器看门狗电路，其中小于参考电压的电压基本上仅响应于具有预定重复频率的脉冲串状态信号提供给比较器。重复频率灵敏度来自连接的电荷泵，通过串联连接的电阻器和具有合适时间常数的电容器接收状态脉冲串。如果产生复位信号的比较器输出端子，如果电荷泵从第二电容器中去除电荷比通过充电电阻器向其提供电荷更慢的电荷，则提供低接地的阻抗路径，从而增加提供给比较器的电压。

5. 发明授权

US5041775A Speed control for multitap induction motor 失效
标题翻译：多功能感应电机的速度控制
公开(公告)号：US5041775A
公开(公告)日：1991-08-20
申请号：US504736
申请日：1990-04-03
申请人： John L. Erdman
发明人： John L. Erdman
摘要： A control circuit for controlling the speed of a tapped winding motor that includes a set of motor speed selection relays, and a normally open relay connected in series with the set of motor speed selection relays. The motor speed selection relays are connected to the tapped windings of the motor for varying speed of the motor. A microprocessor controls energization of the relay windings upon request for a change in motor speed so that the normally open relay is open before and during any change of state of the motor speed selection relays corresponding to the requested change in motor speed.
摘要翻译：用于控制包括一组电动机速度选择继电器的抽头绕组电动机的速度的控制电路，以及与该组电动机速度选择继电器串联连接的常开继电器。马达速度选择继电器连接到马达的抽头绕组，用于电机的变速。微处理器根据要求改变电动机速度来控制继电器绕组的通电，使得常开继电器在对应于所要求的电动机转速变化的电动机速度选择继电器的任何状态改变之前和期间都是打开的。

6. 发明授权

US4963088A Safety-related parameter inputs for microprocessor ignition controller 失效
标题翻译：微处理器点火控制器的安全相关参数输入
公开(公告)号：US4963088A
公开(公告)日：1990-10-16
申请号：US239453
申请日：1988-09-01
申请人： John L. Erdman
发明人： John L. Erdman
IPC分类号： F23N5/20 , F23N5/24 , G05B9/02
CPC分类号： G05B9/02 , F23N5/242 , F23N2023/08 , F23N2027/16 , F23N2031/10 , F23N5/20
摘要： A control circuit for controlling the ignition time of a control system for a gas-fired combustion air heating appliance comprising a set of potentiometers and a controller for detecting failures in the control circuit. The set of potentiometers are used together to select the ignition time of the control system. The potentiometers are set to produce analog input signals which, when converted to digital signals, have a predetermined complementary relationship (such as one's or two's complement). The controller is connected to the set of potentiometers and includes an analog-to-digital converter which receives the analog input signals from the set of potentiometers and converts them into digital signals. The controller compares or analyzes the digital signals derived from the first and second potentiometers to detect failures in the control circuit and halts operation of the control system if the digital signals do not have the predetermined complementary relationship.
摘要翻译：一种用于控制燃气式燃烧空气加热设备的控制系统的点火时间的控制电路，包括一组电位计和用于检测控制电路中的故障的控制器。电位器组合用于选择控制系统的点火时间。电位计被设置为产生模拟输入信号，当转换成数字信号时，具有预定的互补关系（例如一或二的补码）。控制器连接到一组电位计，并包括一个模数转换器，它接收来自该组电位器的模拟输入信号并将其转换为数字信号。控制器比较或分析从第一和第二电位器得到的数字信号，以检测控制电路中的故障，并且如果数字信号不具有预定的互补关系，则停止控制系统的操作。

7. 发明授权

US5679137A Optical dirty cell sensor for an electronic air cleaner 失效
标题翻译：用于电子空气净化器的光学脏电池传感器
公开(公告)号：US5679137A
公开(公告)日：1997-10-21
申请号：US476968
申请日：1995-06-07
申请人： John L. Erdman , Stephen J. Kemp , Mark R. Schoeneck , Maynard L. Thompson
发明人： John L. Erdman , Stephen J. Kemp , Mark R. Schoeneck , Maynard L. Thompson
IPC分类号： G01N21/59 , B03C3/08 , B03C3/32 , B03C3/74 , B03C3/72
CPC分类号： B03C3/74 , B03C3/08 , B03C3/32
摘要： An electrostatic air cleaner has at least one hole in one of the plates over which air with charged dirt particles is passed. A light source is mounted adjacent to the hole so as to direct its light through the hole. A light sensor detects the level of light passing through the hole. As dirt particles deposit on the plate, they fill in the hole over a period of time, reducing the amount of light passing through the hole. It is possible by measuring the amount of light passing through the hole, to determine the amount of dirt deposited on the plate. In a preferred embodiment, each of the plates contain a hole in alignment with each of the other plates' holes so that light from a single light source can pass through each of the holes. Such a configuration allows both the light source and the light sensor to be located outside of the entire group of plates.
摘要翻译：一个静电空气滤清器在其中一个板上具有至少一个孔，空气带有带电的污垢颗粒。光源邻近孔安装，以便将光引导通过孔。光传感器检测穿过孔的光线。当污垢颗粒沉积在板上时，它们在一段时间内填充孔，减少了通过孔的光量。可以通过测量通过孔的光量来确定沉积在板上的污垢量。在优选实施例中，每个板包含与每个其它板孔对准的孔，使得来自单个光源的光可以穿过每个孔。这种构造允许光源和光传感器都位于整组板的外部。

8. 发明授权

US5074780A Control system for forced combustion air heating appliance 失效
标题翻译：强制燃烧空气加热设备控制系统
公开(公告)号：US5074780A
公开(公告)日：1991-12-24
申请号：US596420
申请日：1990-10-10
申请人： John L. Erdman
发明人： John L. Erdman
IPC分类号： F23N5/18 , F23N5/20 , F23N5/24
CPC分类号： F23N5/242 , F23N5/203 , F23N2005/182 , F23N2027/16 , F23N2031/10 , F23N2033/06 , F23N5/18
摘要： A control system, for a gas-fired, forced combustion air heating appliance, controls operation of a combustion air blower and a gas valve as a function of signals from a thermostat, a combustion air proving sensor switch, and a gas valve control relay. When the thermostat demands heat, the control system first checks the status of the combustion air sensor switch before starting the combustion air blower. If the combustion air sensor switch indicates that combustion air is being delivered before the combustion air blower has started, the control system immediately halts the ignition sequence. If the combustion air sensor switch is functioning properly, the ignition sequence continues and the control system checks the status of the contacts of the gas valve relay. If the relay contacts which power the gas valve are already closed before the gas valve relay coil is energized, the control system halts the ignition sequence by turning off the combustion air blower, causing the combustion air sensor switch to open and shut off power to the gas valve.
摘要翻译：用于燃气的强制燃烧空气加热装置的控制系统根据来自恒温器，燃烧空气检测传感器开关和气体阀控制继电器的信号控制燃烧空气鼓风机和燃气阀的操作。当恒温器需要热量时，控制系统首先检查燃烧空气传感器开关的状态，然后再启动燃烧式鼓风机。如果燃烧空气传感器开关指示在燃烧空气鼓风机开始之前燃烧空气正在输送，则控制系统立即停止点火顺序。如果燃烧空气传感器开关正常工作，点火顺序继续，控制系统检查气体继电器的触点状态。如果在气体继电器线圈通电之前，继电器接触到气体阀已经关闭的电源，则控制系统通过关闭燃烧空气鼓风机来停止点火顺序，使得燃烧空气传感器开关打开并切断对气阀。

9. 发明授权

US4457692A Dual firing rate flame sensing system 失效
标题翻译：双发射率火焰传感系统
公开(公告)号：US4457692A
公开(公告)日：1984-07-03
申请号：US525082
申请日：1983-08-22
申请人： John L. Erdman
发明人： John L. Erdman
IPC分类号： F23N1/02 , F23N5/12 , F23N5/18 , F23N3/00
CPC分类号： F23N1/022 , F23N5/123 , F23N2023/08 , F23N2025/02 , F23N2027/04 , F23N2027/22 , F23N2029/12 , F23N2033/04 , F23N2035/12 , F23N2037/16 , F23N5/12 , F23N5/18
摘要： A flame rod inserted in a flame created by the secondary air supplied to a burner is used to generate a flame signal voltage. This flame signal voltage fluctuates with the amount of secondary air available and with the fuel supplied. These fluctuations are relied upon by an integrated control system that utilizes a microprocessor or microcomputer to safely control an induced draft-type of furnace.
摘要翻译：使用插入由供给燃烧器的二次空气产生的火焰中的火焰棒来产生火焰信号电压。该火焰信号电压随二次空气量和燃料供应而波动。这些波动依赖于利用微处理器或微型计算机来安全地控制诱导的通风式炉的综合控制系统。

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