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1. 发明授权

US06812445B2 Electrode apparatus for stray field radio frequency heating 失效
标题翻译：用于杂散场射频加热的电极装置
公开(公告)号：US06812445B2
公开(公告)日：2004-11-02
申请号：US10388179
申请日：2003-03-14
申请人： Timothy D. Gorbold
发明人： Timothy D. Gorbold
IPC分类号： H05B646
CPC分类号： H05B6/54
摘要： An RF heating system for generating precision stray RF fields that can be used to heat materials. The RF heating system includes an RF power supply for generating RF signals and an electrode apparatus that is coupled to the RF power supply. An electrode apparatus according to the present invention has many advantages over existing electrode apparatuses. For example, the electrode apparatus is easier to manufacture, easier to duplicate, easier to control the manufacturing tolerances on the electrode system, and easier to correctly place and design the resulting RF stray field.
摘要翻译：一种RF加热系统，用于产生可用于加热材料的精密杂散RF场。 RF加热系统包括用于产生RF信号的RF电源和耦合到RF电源的电极装置。根据本发明的电极装置与现有的电极装置相比具有许多优点。例如，电极装置更容易制造，更容易复制，更容易控制电极系统上的制造公差，并且更容易正确地放置和设计所产生的射频杂散场。

2. 发明授权

US06246040B1 Solid state RF generator for dielectric heating of food products 有权
标题翻译：用于食品介质加热的固态RF发生器
公开(公告)号：US06246040B1
公开(公告)日：2001-06-12
申请号：US09347620
申请日：1999-07-02
申请人： Bradley R. Gunn
发明人： Bradley R. Gunn
IPC分类号： H05B646
CPC分类号： H05B6/48
摘要： A solid state radio frequency (RF) generator for dielectric heating of food products. In the preferred embodiment, a distributed oscillator comprising an array of solid state devices (e.g., MOSFETs) and a high voltage inductor drives a capacitor to produce an intense alternating electric field. Dielectric materials moving through the field, preferably food products in a glass pipe, are substantially instantaneously, preferentially, and uniformly heated by the field. Operators of the heater may observe the process, and may incorporate a number of heating stages into a food processing system having an easily controllable temperature profile. The use of a large number of individual low-cost low-power devices increases the reliability and ease of maintenance of the generator. Each coil turn of the inductor is shunted by a tuning capacitor to evenly distribute the load across all inductor coil turns. Each coil turn is driven by a pair of push-pull series device chains, with each device synchronously driven by individual gate transformers also connected to the coil turn, and with each device shunted by a balancing capacitor to evenly distribute the load across the devices in the chain.
摘要翻译：一种用于食品介质加热的固态射频（RF）发生器。在优选实施例中，包括固态器件阵列（例如MOSFET）和高压电感器的分布式振荡器驱动电容器以产生强烈的交变电场。通过现场移动的电介质材料，优选玻璃管中的食品，基本上瞬间地，优选地并且均匀地被场加热。加热器的操作者可以观察该过程，并且可以将多个加热阶段并入具有易于控制的温度分布的食品加工系统中。使用大量单独的低成本低功率设备增加了发电机的可靠性和易维护性。电感器的每个线圈圈由调谐电容器分流，以将负载均匀分布在所有电感线圈匝间。每个线圈匝由一对推挽式串联装置链驱动，每个装置由单独的栅极变压器同步驱动，也连接到线圈匝，并且每个装置由平衡电容器分流，以将负载均匀地分布在装置中连锁，链条。

3. 发明授权

US06657173B2 Variable frequency automated capacitive radio frequency (RF) dielectric heating system 有权
公开(公告)号：US06657173B2
公开(公告)日：2003-12-02
申请号：US09938468
申请日：2001-08-23
申请人： Benjamin A. Flugstad , Qingyue Ling , Edward R. Kolbe , John Henry Wells , Yanyun Zhao , Jae W. Park
发明人： Benjamin A. Flugstad , Qingyue Ling , Edward R. Kolbe , John Henry Wells , Yanyun Zhao , Jae W. Park
IPC分类号： H05B646
CPC分类号： A23B4/01 , A23B9/04 , A23L3/01 , H05B6/50
摘要： A food product is heated by maintaining the food product in an AC electrical field generated by an RF signal. As the heating takes place, maximum energy is delivered to the food product using automatic impedance matching to adjust the rate of the process.

4. 发明授权

US06242726B1 Adjustable microwave field stop 失效
标题翻译：可调微波场停止
公开(公告)号：US06242726B1
公开(公告)日：2001-06-05
申请号：US09126551
申请日：1998-07-30
申请人： George M. Harris , Peter Robicheau , Leonard J. Groves
发明人： George M. Harris , Peter Robicheau , Leonard J. Groves
IPC分类号： H05B646
CPC分类号： H05B6/68 , B27D3/00 , B27N3/203 , F26B3/347 , H05B6/705 , H05B6/74 , H05B6/766 , H05B6/782 , Y02B40/143
摘要： An improved magnetic field stop. The field stop adjusts to allow different sizes of products to be passed through a microwave heating system. The field stop prevents undue radiation from escaping a heating chamber which is used in a microwave heating process for a variety of substrates.
摘要翻译：改进的磁场停止。现场停止调整，以允许不同尺寸的产品通过微波加热系统。现场停止可防止不必要的辐射逸出用于各种基板的微波加热过程中的加热室。

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