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55 条记录 (耗时 0.02 秒)

    Ground fault circuit interrupter incorporating miswiring prevention circuitry
    21.
    发明授权
    Ground fault circuit interrupter incorporating miswiring prevention circuitry 失效

    公开(公告)号：US5963408A

    公开(公告)日：1999-10-05

    申请号：US1479

    申请日：1997-12-31

    申请人： Benjamin Neiger ,  Saul Rosenbaum ,  Bernard Gershen

    发明人： Benjamin Neiger ,  Saul Rosenbaum ,  Bernard Gershen

    IPC分类号： H02H3/04 ,  H02H3/33 ,  H02H3/16

    CPC分类号： H02H3/338 ,  H02H3/04

    摘要： A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC and LOAD terminals reversed, downstream devices are still protected in the event of a ground fault but the duplex receptacle on the GFCI itself is not. The invention incorporates miswiring sense circuitry that automatically triggers the generation of visual and audible alarms in the event a miswiring condition is sensed. The invention employs an alarm inhibiting technique that incorporates sense circuitry connected to the AC terminals on one side of the internal GFCI switches or relays and alarm generation circuitry connected to the LOAD terminals on the opposite side.

    Shock hazard protection system
    22.
    发明授权
    Shock hazard protection system 失效

    公开(公告)号：US5583730A

    公开(公告)日：1996-12-10

    申请号：US524140

    申请日：1995-09-06

    申请人： Bernard Gershen ,  Saul Rosenbaum ,  James N. Pearse

    发明人： Bernard Gershen ,  Saul Rosenbaum ,  James N. Pearse

    IPC分类号： H01H83/02 ,  H02H5/08 ,  H02H3/16

    CPC分类号： H01H83/02 ,  H02H5/083 ,  Y10T307/779

    摘要： The present invention teaches a new and novel system for protecting people and property against electrical shock. The invention includes a number of preferred and other embodiments which have this as their goal, but which represent a number of distinctive and novel approaches to solving prior art problems. By way of example only, and without limiting the scope of this invention, these approaches include novel immersion detecting circuits, broken wire test circuits, electromechanical circuit breaking means including coil/plunger arrangements, and relay circuit breaking mechanisms cooperative with associated circuitry, all of which are able to be incorporated as a system wholly within the load (appliance) and its associated cord set (including a "plug").