公开(公告)号：US5025242A

公开(公告)日：1991-06-18

申请号：US558324

申请日：1990-07-24

申请人： Calvin J. Holtkamp ,  George L. Hetrick ,  Richard Warren

发明人： Calvin J. Holtkamp ,  George L. Hetrick ,  Richard Warren

IPC分类号： H01H37/10 ,  H01H37/12 ,  H01H37/28 ,  H01H37/38

CPC分类号： H01H37/12 ,  H01H37/10 ,  H01H37/28 ,  H01H37/38

摘要： An oven control for self-cleaning ovens provides a hydraulic sensing system having a wafer-like bellows. The position of the bellows is adjusted by a face cam on a control shaft in the BAKE and BROIL modes of operation. The bellows also controls the temperature of the oven for SELF-CLEANING. However, the face cam does not determine the SELF-CLEANING temperature. A door lock operator switch is also operated by the bellows, but is connected so that the adjusted position of the bellows does not affect the door lock operating temperature. Three separate calibration adjustments are provided. The first calibrates the operating temperature in the BAKE and BROIL modes of operation. The second calibrates the SELF-CLEANING temperature, and the third calibrates the door lock operating temperature. A bimetal ambient temperature compensator is provided to compensate for variations in the ambient temperature of the control.

摘要翻译： 用于自清洁烤箱的烤箱控制器提供具有晶片状波纹管的液压感测系统。 波纹管的位置由BAKE和BROIL操作模式中的控制轴上的面凸轮调节。 波纹管还可以控制烘箱的自动清洗温度。 但是，面凸轮不能确定自清洁温度。 门锁操作开关也由波纹管操作，但是被连接，使得波纹管的调节位置不影响门锁的工作温度。 提供三个单独的校准调整。 首先在BAKE和BROIL操作模式下校准工作温度。 第二个校准SELF-CLEANING温度，第三个校准门锁的工作温度。 提供双金属环境温度补偿器来补偿控制器的环境温度的变化。

公开(公告)号：US5021762A

公开(公告)日：1991-06-04

申请号：US562270

申请日：1990-08-03

申请人： George L. Hetrick

发明人： George L. Hetrick

IPC分类号： H01H37/28 ,  H01H89/04

CPC分类号： H01H37/28 ,  H01H89/04

摘要： A thermal cycling switch has an insulated housing carrying a centrally located rotating cam. The cam operates a first ON/OFF switch connectable between a pair of contacts that are connected to one side of a load and one power line. The rotary cam also moves an adjusted contact mounted on an adjustable arm which cooperates with a cyling arm contact to operate as another switch between the other side of the load and another power line. The cycling arm includes a bimetal member which is electrically insulated at the base, as well as a current conducting strip formed of pure nickel metal extending along the low expansion side of the bimetal member. The metal strip is heated by a separate resistance wire wrapped around an insulated cover on the metal strip and connected across the load so that whenever the load is energized from the power lines, the metal strip is heated to produce an initial biasing force causing the contacts to close in opposition to the thermal expansion of the bimetal, which tends to cause the contacts to open.

摘要翻译： 热循环开关具有承载位于中心的旋转凸轮的绝缘壳体。 凸轮操作第一ON / OFF开关，其可连接在连接到负载的一侧的一对触点和一个电源线之间。 旋转凸轮还移动安装在可调节臂上的调节的触点，其与旋转臂触头配合，以作为负载的另一侧和另一电力线之间的另一个开关。 循环臂包括在基座处电绝缘的双金属构件以及由沿着双金属构件的低膨胀侧延伸的纯镍金属形成的导电条。 金属带被单独的电阻线加热，该电阻丝缠绕在金属带上的绝缘盖上并连接在负载上，使得每当负载从电力线通电时，金属带被加热以产生初始偏压力，使得触点 以与双金属片的热膨胀相对立，这倾向于导致触点断开。

公开(公告)号：US3946201A

公开(公告)日：1976-03-23

申请号：US553847

申请日：1975-02-27

申请人： George L. Hetrick

发明人： George L. Hetrick

IPC分类号： F24C15/10 ,  G05D23/24 ,  H05B3/74 ,  H05B1/02

CPC分类号： H05B3/746 ,  F24C15/105 ,  G05D23/1913 ,  G05D23/24

摘要： A sensor, located to respond to the temperature of the cooking platform and having a positive temperature coefficient of resistance throughout a range of temperatures up to the maximum selected safe operating temperature of the platform, is connected to a thermal cycling control switch and provides an increasing resistance with an increasing platform temperature to effect a wattage limiting control of the heating element supplying heat to the platform.

摘要翻译： 传感器连接到热循环控制开关，该传感器定位成响应于烹饪平台的温度并且在整个平台的最大选择的安全工作温度的整个温度范围内具有正的温度系数，并且提供增加的 具有增加的平台温度的电阻以实现对加热元件供给平台的加热元件的功率的限制。