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    Power divider circuit for two-unit hotplate
    2.
    发明授权
    Power divider circuit for two-unit hotplate 失效
    用于两个单元HOTPLATE的分路器电路

    公开(公告)号：US3610886A

    公开(公告)日：1971-10-05

    申请号：US3610886D

    申请日：1970-07-15

    Applicant: GEN MOTORS CORP

    Inventor： PANSING NELSON J ,  SIEGLA DONALD C

    IPC: F24C15/10 ,  H05B1/02

    CPC classification number: F24C15/106

    Abstract: In preferred form, an electric hotplate with dual resistancetype heating elements which produce a maximum power output at a predetermined current level when operated separately. When operated simultaneously, the current is divided between the elements to energize them at less than the maximum power output without exceeding the predetermined current level. The hotplate circuit includes two parallel branches each containing a heating element, a heat control switch and a diode for energizing one element with the positive half wave of alternating current and the other element with the negative half wave of alternating current. A current-responsive bypass circuit which is normally in parallel with the diodes opens when both elements are energized simultaneously.

    Thermal cycling heat range switch with wiping action
    8.
    发明授权
    Thermal cycling heat range switch with wiping action 失效
    热循环热风切换开关

    公开(公告)号：US3636490A

    公开(公告)日：1972-01-18

    申请号：US3636490D

    申请日：1970-11-30

    Applicant: GEN MOTORS CORP

    Inventor： PANSING NELSON J

    IPC: H01H37/12 ,  H01H37/60 ,  H01H89/04 ,  H01H61/08 ,  H01H71/22

    CPC classification number: H01H37/12 ,  H01H37/60 ,  H01H89/04

    Abstract: A thermal cycling switch device including a bimetallic current carrying cycling blade operable to control the rate of energization of an electric heater particularly of the type used in range surface units. A front contact on the free end of the self-heated cycling blade is constantly biased in a contact open direction by cam loading means, A thrust spring operates on the free end of the cycling blade to apply a snap action force in both the make and break directions depending upon the thermal condition of the cycling blade. The switch employs a resiliently mounted back contact supporting blade having a radius arm substantially less than the cycling blade wherein wiping action is attained between the contacts to insure the snap action of the switch.

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