Electrical contact assembly with permanent magnet blowouts
    1.
    发明授权
    Electrical contact assembly with permanent magnet blowouts 失效
    电气触点组件与永久磁铁泡罩

    公开(公告)号:US3594526A

    公开(公告)日:1971-07-20

    申请号:US3594526D

    申请日:1969-01-17

    Applicant: SQUARE D CO

    Inventor: SWINDLER DAVID L

    CPC classification number: H01H9/443 H01H33/596

    Abstract: A pair of disc-shaped permanent magnets are held in complementary recesses on opposite sides of an insulating contact block by respective contact arms which carry stationary contacts. Direct current arcs formed when a bridging contact separates from the stationary contacts are driven by the magnets in opposite directions with roots of the arcs moving along respective conductive rims surrounding the magnets.

    Multipurpose direct current relay
    2.
    发明授权
    Multipurpose direct current relay 失效
    多种直流电继电器

    公开(公告)号:US3564467A

    公开(公告)日:1971-02-16

    申请号:US3564467D

    申请日:1969-02-25

    Applicant: SQUARE D CO

    CPC classification number: H01H50/045 H01H50/648

    Abstract: THE RELAY HAS A CONTACT-OPERATING ARM ASSEMBLY INCLUDING AN ARAMTURE AND AN ADJUSTABLE RETAINING MEANS WHICH RETAINS THE ARAMATURE IN PIVOTAL RELATIONSHIP WITH A MAGNETIZABLE FRAME. THE RETAINING MEANS PERMITS THE CONTACT ARM ASSEMBLY TO BE REMOVED FROM THE FRAME FOR FULL ACCESS TO AN OPERATING COIL OR COILS WITHOUT THE USE OF A TOOL. PROVISION IS MADE FOR READY INTERCHANGE OF DIFFERENT

    CONTACT MAKING AND BREAKING DEVICES AND DIFFERENT OPERATING COILS SO THAT THE RELAY CAN BE USED FOR A WIDE VARIETY OF CIRCUIT CONTROLLING FUNCTIONS.

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