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公开(公告)号：US3699300A
公开(公告)日：1972-10-17
申请号：US3699300D
申请日：1971-11-30
Applicant: NORRIS INDUSTRIES
Inventor： BUERKI CHRISTIAN E
CPC classification number: H05B6/6417 , H01H47/002
Abstract: In a device such as a microwave oven, a pair of interlock switches are placed in series with the power supply to the energy generator, these switches being interlocked with the oven door which seals the microwave compartment such that when the door is opened, both switches which are in series with each other will also open to cut off the supply of power. Each of the switches has a detection circuit connected thereacross so that in the event that such switch should fail and not open when the door opens, a switch mechanism will be actuated so as to actuate circuit breaking means to interrupt the supply of power to the energy generator.
Abstract translation: 在诸如微波炉的设备中，一对互锁开关与能量发生器的电源串联放置，这些开关与烤箱门互锁，密封微波隔室，使得当门打开时，两个开关 相互串联的也将开放切断供电。 每个开关具有连接在其上的检测电路，使得在门打开时这种开关应该失效并且不打开的情况下，将启动开关机构以致动断路装置以中断向能量供电 发电机。
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公开(公告)号：US3593653A
公开(公告)日：1971-07-20
申请号：US3593653D
申请日：1970-05-01
Applicant: NORRIS INDUSTRIES
Inventor： BUERKI CHRISTIAN E
CPC classification number: F24C15/14
Abstract: An electric cooktop has a plurality of heating elements installed therein and may be lifted as a unit to provide access to reflectors and spillover bowls positioned unattachedly on a support surface below, thereby enabling ready removal of the bowls and reflectors for cleaning, without removing the heating elements.
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