公开(公告)号：US06381518B1

公开(公告)日：2002-04-30

申请号：US09376031

申请日：1999-08-17

申请人： Jeffrey M. Huffington ,  Robert J. Alvord ,  John L. Courtney ,  Kimble Vitkus

发明人： Jeffrey M. Huffington ,  Robert J. Alvord ,  John L. Courtney ,  Kimble Vitkus

IPC分类号： G05D2300

CPC分类号： G05D23/1919

摘要： An oven temperature controller for regulating temperature to a temperature setpoint over a temperature range in an oven compartment comprising a microprocessor and memory storage means. The memory storage means stores temperature setpoint related information for temperature setpoints over the temperature range and this information is used by the microprocessor for establishing an upper control limit curve and a lower control limit curve. The upper control limit curve and lower control limit curve have no discontinuities over a majority of the temperature range and at least one of these curves is non-parallel to a temperature setpoint line, the temperature setpoint line formed in a stepwise linear manner between temperature setpoints as the temperature setpoint is varied over the temperature range.

摘要翻译： 一种用于在包括微处理器和存储器存储装置的烤箱室中的温度范围内将温度调节到温度设定点的烤箱温度控制器。 存储器存储装置将温度设定点相关信息存储在温度范围内，并且该信息由微处理器用于建立上控制极限曲线和下控制极限曲线。 上限控制极限曲线和下控制极限曲线在大多数温度范围内没有不连续性，并且这些曲线中的至少一个与温度设定点线不平行，温度设定点线以温度设定点之间的逐步线性方式形成 因为温度设定值在温度范围内变化。

公开(公告)号：US5668359A

公开(公告)日：1997-09-16

申请号：US609204

申请日：1996-03-01

申请人： Robert J. Alvord ,  Jeffrey M. Huffington ,  Yoshio W. Kano ,  Joseph S. Calabrese ,  Kayvan K. Mirza

发明人： Robert J. Alvord ,  Jeffrey M. Huffington ,  Yoshio W. Kano ,  Joseph S. Calabrese ,  Kayvan K. Mirza

IPC分类号： G01D5/25 ,  H01H19/63 ,  H01H19/60 ,  H01H21/80

CPC分类号： H01H19/63 ,  G01D5/25

摘要： A rotary encoded switch having a plurality of stationary discrete micro switches operated by a rotor having a plurality of concentric cam tracks. The cam tracks and switches are disposed such that for each rotary position of the rotor at least two switches, on opposite sides of the rotor are actuated and a discrete combination of switches is actuated for each position of the rotor. The number of microswitches required is less than half the number of rotary positions.

摘要翻译： 一种旋转编码开关，具有由具有多个同心凸轮轨道的转子操作的多个固定离散微型开关。 凸轮轨道和开关被布置成使得对于转子的每个旋转位置，在转子的相对侧上的至少两个开关被致动，并且为转子的每个位置致动离散的开关组合。 所需的微动开关数量小于旋转位置数量的一半。

公开(公告)号：US5570520A

公开(公告)日：1996-11-05

申请号：US443588

申请日：1995-05-17

申请人： Jeffrey M. Huffington

发明人： Jeffrey M. Huffington

IPC分类号： D06F58/28 ,  F26B25/22 ,  F26B13/10

CPC分类号： D06F58/28 ,  F26B25/22 ,  D06F2058/2819 ,  D06F2058/2829

摘要： In a clothes dryer, the air exiting the dryer for wet clothes has a high relative humidity compared to the relative humidity when the load is dry. A change in the relative humidity of the air leaving the dryer indicates a change in dryness of the load. The relative humidity is measured by using two thermistors located in an air outlet of the dryer. The first thermistor is nonself-heating and uses a relatively low current to detect the temperature of the air in the air outlet. The second thermistor is self-heating and operates at a higher current so that its temperature is higher than the air temperature. As the air moves across the heated thermistor it will conduct more heat away from the thermistor when the relative humidity of the air is high than when it is low. The air temperature and heated thermistor temperature are compared frequently during the drying cycle. When the load is wet the difference between the two thermistors is small. When the load is dry the difference is greater. A microcontroller circuit controls the temperature sensing and difference computation.

摘要翻译： 在干衣机中，与干燥时的相对湿度相比，从湿衣服吹出的空气的相对湿度高。 离开干燥机的空气的相对湿度的变化表示负载干燥度的变化。 通过使用位于干燥器的空气出口中的两个热敏电阻来测量相对湿度。 第一个热敏电阻是非自加热的，并且使用相对较低的电流来检测出风口中的空气的温度。 第二个热敏电阻是自热的，工作在较高的电流，使其温度高于空气温度。 当空气流过加热的热敏电阻时，当空气的相对湿度高于低温时，它将从热敏电阻传导更多的热量。 干燥循环期间，空气温度和加热热敏电阻温度经常比较。 当负载变湿时，两个热敏电阻之间的差异很小。 当负载干燥时，差值较大。 微控制器电路控制温度感测和差分计算。