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    Method and apparatus for determining battery performance at one temperature when battery is at another temperature
    1.
    发明授权
    Method and apparatus for determining battery performance at one temperature when battery is at another temperature 失效
    当电池在另一温度下确定电池性能的方法和装置

    公开(公告)号：US3781658A

    公开(公告)日：1973-12-25

    申请号：US3781658D

    申请日：1972-01-14

    Applicant: FOX PROD CO

    Inventor： GODSHALK J

    IPC: G01R31/00 ,  G01R31/36 ,  H01M10/44 ,  G01N27/42

    CPC classification number: G01R31/3627 ,  G01R31/005 ,  G01R31/3631 ,  G01R31/3668 ,  G01R31/3675 ,  H01M10/44

    Abstract: Both a method and apparatus are disclosed for testing lead-acid storage batteries to determine the cranking amperes which the battery can supply at a predetermined low temperature, typically 0*F., when the battery is in fact at a different temperature. The invention derives from the battery, after a short discharge at substantially its cranking ampere rating, an electrical quantity representative of the actual terminal voltage of the battery at the end of the discharge, and converts this electrical quantity into an observable indication representing the terminal voltage which the battery would exhibit if similarly tested at the predetermined low temperature. The invention is based on the discovery that the terminal voltage of a lead-acid storage battery under load changes predictably with changes in temperature of the battery.

    Current and voltage controlled battery charger
    2.
    发明授权
    Current and voltage controlled battery charger 失效
    电流和电压控制电池充电器

    公开(公告)号：US3758839A

    公开(公告)日：1973-09-11

    申请号：US3758839D

    申请日：1971-10-04

    Applicant: FOX PROD CO

    Inventor： MEDLAR L

    IPC: H02J7/00 ,  H02J7/04

    CPC classification number: H02J7/008

    Abstract: Battery charging method and apparatus for performing the method including a controlled rectifier and a trigger circuit in which a current transformer senses charging current, a voltage divider senses battery terminal voltage, and signals developed from both of the current and voltage sensing devices are used to control the operation of the trigger circuit. Current control is maintained during initial portion of the charging cycle with voltage control being substituted to diminish charging current after which a second current control maintains a closely controlled ''''trickle'''' charge level. The three control modes operate sequentially, all use the same common reference value and all control the same charging circuit valve. A second embodiment of the apparatus uses two controlled rectifiers, fired alternately.

    Abstract translation: 用于执行包括可控整流器和触发电路的方法的电池充电方法和装置，其中电流互感器感测充电电流，分压器感测电池端子电压，并且使用从电流和电压感测装置两者开发的信号来控制 触发电路的操作。 在充电周期的初始部分期间维持电流控制，其中电压控制被替代以减少充电电流，之后第二电流控制保持紧密控制的“涓流”充电水平。 三种控制方式顺序运行，均采用相同的公共参考值，并且全部控制相同的充电电路阀。 该装置的第二实施例使用两个可控整流器，交替地点火。

    Animal operated watering device
    3.
    发明授权
    Animal operated watering device 失效
    动物操作水装置

    公开(公告)号：US3756199A

    公开(公告)日：1973-09-04

    申请号：US3756199D

    申请日：1972-04-17

    Applicant: FOX PROD CO

    Inventor： CLARK R

    IPC: A01K39/02 ,  A01K7/00

    CPC classification number: A01K39/0213

    Abstract: Animal operated watering device of the ''''nipple valve'''' type in which the movable valve element is in the form of a thin flat disc of elastomeric material and the device is so constructed and arranged as to be actuatable by tilting of the valve operating member as well as to upward movement thereof.

    Abstract translation: “乳头阀”类型的动物操作浇水装置，其中可移动阀元件是弹性材料的薄平板形式，并且该装置被构造和布置成可以通过阀操作构件的倾斜来致动 其向上运动。

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