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1. 发明授权

US4954694A Cooking oven having function to automatically clean soils attached to inner walls thereof 失效
标题翻译：烹饪炉具有自动清洁附着于其内壁的污物的功能
公开(公告)号：US4954694A
公开(公告)日：1990-09-04
申请号：US303882
申请日：1989-01-30
申请人： Takeshi Nagai , Hiroshi Fukuda , Masahiko Itoh , Takao Shitaya
发明人： Takeshi Nagai , Hiroshi Fukuda , Masahiko Itoh , Takao Shitaya
IPC分类号： F24C14/02
CPC分类号： F24C14/02
摘要： A self-cleaning type cooking oven with a cooking chamber which has a function to pyrolytically eliminate food soils accumulated on walls of the cooking chamber. The cooking oven includes a heater for supplying heat into the cooking chamber so as to allow to pyrolytically degrade the food soils and an exhausting passage coupled to the cooking chamber to exhaust gases generated due to the pyrolytical degradation to an ambient atmosphere. In the exhausting passage is provided an oxidizing catalyst which oxidizes the gases introduced thereinto for exhausting and also provided a gas sensor to detect a gas component therearound. Also included in the cooking oven is a heat control unit electrically connected to the heater for controlling heat supply into the cooking chamber, the heat control unit being responsive to a gas signal therefrom to determine a heating time period for chamber cleaning. With the temperature of the cooking chamber being kept at a predetermined cleaning temperature, the heat control unit samples the gas signal at a given time interval to detect a variation of amount of the gas component and detect an inflection point from decreasing to increasing or vice versa in the gas-component variation to determine the heating time period in conjunction with the inflection point, the food soils being substantially degraded by heating during the heating time period.
摘要翻译：一种具有烹饪室的自清洁型烹饪炉，其具有热解消除积聚在烹饪室壁上的食物污垢的功能。烹饪炉包括用于向烹饪室供热的加热器，以便使食物污垢热解降解，以及耦合到烹饪室的排气通道，以将由于热解降解而产生的气体排放到环境大气中。在排气通道中设有一个氧化催化剂，氧化引入其中的气体进行排气，还提供一个气体传感器来检测周围的气体成分。还包括在烹饪炉中的是热控制单元，其电连接到加热器，用于控制对烹饪室的供热，热控单元响应于其中的气体信号，以确定室清洁的加热时间段。随着烹饪室的温度保持在预定的清洁温度，热控制单元以给定的时间间隔对气体信号进行采样，以检测气体成分的量的变化，并检测拐点从减少到增加，反之亦然在气体成分变化中，结合拐点确定加热时间段，食物土壤在加热时间段内通过加热显着降解。

2. 发明授权

US4757181A Weighing apparatus 失效
标题翻译：称重设备
公开(公告)号：US4757181A
公开(公告)日：1988-07-12
申请号：US884892
申请日：1986-07-14
申请人： Kazuho Sakamoto , Takao Shitaya , Makoto Mihara
发明人： Kazuho Sakamoto , Takao Shitaya , Makoto Mihara
IPC分类号： F24C7/02 , G01G3/12 , G01G7/06 , G01G19/414 , G01G19/56 , H05B6/68 , H05B6/80 , H05B1/02
CPC分类号： H05B6/6482 , G01G19/414 , G01G19/56 , G01G7/06 , H05B6/6464
摘要： A heating oven has a weighing apparatus, and a weight of a food material placed on a tray in a heating cavity is conveyed by Roberval mechanism. The conveyed weight is measured by the weighing apparatus, and the heating oven controls heating time, heating power and the like responding to the measured weight of the food stuff.
摘要翻译：加热炉具有称重装置，并且通过Roberval机构输送放置在加热腔中的托盘上的食物重量。输送的重量由称重装置测量，加热炉控制加热时间，加热功率等与食品的测量重量相对应。

3. 发明授权

US5091617A High frequency heating apparatus using inverter-type power supply 失效
标题翻译：使用逆变器电源的高频加热装置
公开(公告)号：US5091617A
公开(公告)日：1992-02-25
申请号：US526521
申请日：1990-05-22
申请人： Naoyoshi Maehara , Takahiro Matsumoto , Kazuho Sakamoto , Daisuke Bessyo , Takashi Niwa , Shigeru Kusunoki , Takao Shitaya
发明人： Naoyoshi Maehara , Takahiro Matsumoto , Kazuho Sakamoto , Daisuke Bessyo , Takashi Niwa , Shigeru Kusunoki , Takao Shitaya
IPC分类号： H05B6/66 , H05B6/68
CPC分类号： H05B6/666 , H05B6/685
摘要： A high-frequency heating apparatus comprises an inverter including a semiconductor switch and a resonance capacitor, a boosting transformer for a supplying high-voltage power and heater to a magnetron an inductance device inserted in the heater circuit of the magnetron, and an inverter control unit for controlling the semiconductor switch. The inverter control unit is controlled by a start control at the start time of the inverter so that the conduction time of the semiconductor switch becomes shorter than that under a normal operating condition and the non-conduction time thereof becomes longer than that under a normal operating condition and so that the switching period of the semiconductor switch becomes substantially an integral multiple of a resonance period of the resonance circuit formed by the resonance capacitor, whereby the operating frequency of the inverter at the time of starting thereof becomes substantially equal to its normal operating frequency.

4. 发明授权

US4886951A Power supply for a magnetron having a rectifying circuit, switching circuit, and transformer 失效
标题翻译：具有整流电路，开关电路和变压器的磁控管的电源
公开(公告)号：US4886951A
公开(公告)日：1989-12-12
申请号：US189170
申请日：1988-05-02
申请人： Takahiro Matsumoto , Haruo Suenaga , Naoyoshi Maehara , Kazuho Sakamoto , Takashi Niwa , Daisuke Bessyo , Shigeru Kusunoki , Takao Shitaya
发明人： Takahiro Matsumoto , Haruo Suenaga , Naoyoshi Maehara , Kazuho Sakamoto , Takashi Niwa , Daisuke Bessyo , Shigeru Kusunoki , Takao Shitaya
IPC分类号： H05B6/68 , H01F27/30 , H01J20060101 , H02M3/335 , H02M7/527 , H03B9/10 , H03C20060101 , H05B6/66
CPC分类号： H05B6/666 , H02M3/33507 , H02M3/33523 , H03B9/10 , H05B2206/043
摘要： A power supply for a magnetron includes a rectifying circuit, a switching circuit, and a transformer. The rectifying circuit converts an ac-power source signal into a dc-power source signal. The switching circuit converts the dc-power source signal output from the rectifying circuit into a high-frequency signal in accordance with a driving circuit. A transformer connected to the switching circuit converts the high-frequency signal into a high-voltage high-frequency signal for driving the magnetron. The transformer includes a primary winding connected to the switching circuit, a secondary winding connected to the magnetron, a tertiary winding connected to a cathode heater of said magnetron, and a fourth winding connected to the driving circuit. The coupling coefficient between the fourth winding and the second winding is larger than the coupling coefficient between the fourth winding and the primary winding.
摘要翻译：用于磁控管的电源，其具有逆变器电路，高压变压器，磁控管。为了缩短从磁控管的功率供给到阴极至通过振荡开始到达额定输出所需的时间，提供了用于检测磁控管的振荡开始时间点的机构，适于在振荡之后立即进行控制操作以进行额定输出。在高压变压器上设置用于输出电压检测的绕组，以检测磁控管的振荡。

5. 发明授权

US4812960A Power feeding apparatus 失效
标题翻译：供电设备
公开(公告)号：US4812960A
公开(公告)日：1989-03-14
申请号：US131717
申请日：1987-12-11
申请人： Kazuho Sakamoto , Takao Shitaya , Shigeru Kusunoki , Naoyoshi Maehara , Takashi Niwa , Takahiro Matsumoto , Daisuke Bessyo
发明人： Kazuho Sakamoto , Takao Shitaya , Shigeru Kusunoki , Naoyoshi Maehara , Takashi Niwa , Takahiro Matsumoto , Daisuke Bessyo
IPC分类号： H02M3/325 , H05B6/66 , H02M3/335
CPC分类号： H05B6/666
摘要： A power feeding apparatus which is used in a high-frequency heater or the like, is further power-converted by a transformer after the power provided by the power supply such as commercial power supply or the like has been converted into the high-frequency power by a transducer including a semiconductor, feeds the converted power into the load having the unidirectional electrical current characteristics of magnetron or the like. The generating voltage is dropped so that the stable power may be fed without the corona discharge and the acr discharge to be caused, the insulating withstand voltage between the windings of the transformer, the pulling of the wirings, and the insulating withstand voltage may be reduced.

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