Housed resistor
    1.
    发明授权
    Housed resistor 失效
    住宅电阻

    公开(公告)号:US3581266A

    公开(公告)日:1971-05-25

    申请号:US3581266D

    申请日:1968-12-30

    CPC classification number: H01C1/028

    Abstract: A potted resistor including an outer metal casing, and a resistance element is embedded within an insulating material contained within the casing. Terminal strips are connected to the resistance element and project outwardly of the insulating material in position to be connected to electrical leads.

    Adjustable resistor
    2.
    发明授权
    Adjustable resistor 失效
    可调电阻

    公开(公告)号:US3609627A

    公开(公告)日:1971-09-28

    申请号:US3609627D

    申请日:1968-11-25

    CPC classification number: H01C1/082

    Abstract: An adjustable resistance device including a plurality of tubular casings formed of a material having a high rate of thermal conductivity. A resistance coil is wound around the outer surface of each casing and bonded to the casing by an electrically insulating, high-temperature binding material. A sliding contact is mounted for longitudinal movement along each resistance coil and by adjusting the position of the contact the portion of the resistance coil connected in the circuit can be varied. A fan or other fluid-moving device is associated with the tubular casings and acts to circulate air within the interior of the casings. Heat generated within the resistance coil is dissipated by conduction through the tubular casings and by convection to the air passing within the casings.

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