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公开(公告)号:US5204610A
公开(公告)日:1993-04-20
申请号:US656772
申请日:1991-02-15
IPC分类号: H02J9/06
CPC分类号: H02J9/061 , Y10T307/625
摘要: A latching automatic dual battery switch employs a first comparator to determine that a condition requiring engagement of a secondary battery exists. For example, a primary battery voltage is below a predetermined threshold, current drawn from the primary battery exceeds a predetermined threshold or ambient temperature is below a predetermined threshold. Engagement of an ignition switch is detected and used to clock the output of the comparator to a trigger circuit. The trigger circuit activates the triggerable switch on the leading edge of a signal generated by the detector circuit to connect a secondary battery or power source in parallel with the primary power source. The trigger circuit is leading edge activated so that conditions immediately prior to engagement of the ignition switch determine if the secondary battery is engaged. This avoids engaging the secondary battery as a result of a load surge dragging down the voltage after activation of an ignition switch. In addition, when the ignition switch is released, a timing circuit is engaged to limit the additional time during which the secondary battery is switched in the circuit. The automatic engagement of the secondary battery eliminates the need for manually switching to an emergency backup and manually disengaging the emergency backup after a vehicle is started.
摘要翻译: 闩锁自动双电池开关采用第一比较器来确定需要二次电池接合的状况。 例如,一次电池电压低于预定阈值,从初级电池抽出的电流超过预定阈值或环境温度低于预定阈值。 检测点火开关的接合,并将其用于将比较器的输出定时到触发电路。 触发电路激活由检测器电路产生的信号的前沿上的可触发开关,以将二次电池或电源与主电源并联连接。 触发电路处于前沿被激活,使得紧接在点火开关接合之前的状态确定二次电池是否接合。 这避免了由于在启动点火开关之后负载浪涌向下拖动电压而使二次电池接合。 此外,当点火开关被释放时,接合定时电路以限制二次电池在电路中切换的附加时间。 二次电池的自动接合消除了在车辆启动之后手动切换到紧急备用和手动分离紧急备用的需要。
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公开(公告)号:US5130699A
公开(公告)日:1992-07-14
申请号:US687123
申请日:1991-04-18
IPC分类号: G01R19/165 , G01R31/36
CPC分类号: G01R19/16542
摘要: A voltage monitor and method enables the monitoring of a DC input voltage. The input voltage is continuously scanned and compared to a predetermined threshold. The result of the comparison is periodically stored in a shift register along with previous scan results. When a predetermined number of stored scan results indicate an out of range input voltage, a digital output changes state to provide indication of the abnormal condition.
摘要翻译: 电压监视器和方法可以监视直流输入电压。 连续扫描输入电压并将其与预定阈值进行比较。 比较结果与先前的扫描结果一起定期存储在移位寄存器中。 当预定数量的存储的扫描结果指示超出范围的输入电压时,数字输出改变状态以提供异常状况的指示。
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公开(公告)号:US5518076A
公开(公告)日:1996-05-21
申请号:US274674
申请日:1994-07-13
申请人: John F. Holz , Ronald C. Klassen
发明人: John F. Holz , Ronald C. Klassen
CPC分类号: E21B17/006 , E21B19/16 , Y10T29/49885
摘要: A grease applicator for the threaded joint section of a drill shaft of a blasthole drill. The grease applicator has a grease applicator head movable to an application position adjacent the threaded section of the drill shaft by an applicator drive. The drive extends the applicator head to and extracts the applicator head from the application position. When the applicator head is at the application position, a propelling device for moving grease through the applicator head into engagement with the threaded section is activated to apply the grease to the threaded section. To distribute the grease over the threaded section, the applicator head may have a shape partially surrounding the threaded section. The threaded joint section is vertically positioned in the path of movement of the grease applicator head and the applicator head is extended by the applicator drive along a path toward the threaded section. After grease is propelled through the applicator head into engagement with the threaded section, the grease applicator head is retracted away from the threaded section along the path by the applicator drive.
摘要翻译: 用于炮眼钻头的钻杆螺纹接头部分的润滑脂涂抹器。 润滑脂涂抹器具有润滑脂涂抹头,其可通过涂抹器驱动器移动到与钻杆轴的螺纹部分相邻的施加位置。 驱动器将施用器头延伸并从施加位置提取施用器头部。 当施用头位于施加位置时,用于将润滑脂移动通过施用器头与螺纹部分接合的推进装置被启动,以将润滑脂施加到螺纹部分。 为了将油脂分配在螺纹部分上,涂抹头可以具有部分围绕螺纹部分的形状。 螺纹接头部分垂直定位在润滑脂涂抹器头部的运动路径中,并且涂抹器头部沿敷料器驱动器沿着朝向螺纹部分的路径延伸。 在通过涂抹头推进润滑脂与螺纹部分接合之后,润滑脂涂抹器头沿涂敷器驱动器的路径从螺纹部分缩回。
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