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公开(公告)号：US4526357A
公开(公告)日：1985-07-02
申请号：US455067
申请日：1983-01-03
CPC分类号： B65H3/18
摘要： Apparatus and a method are disclosed that can be selectively operated with equal advantage to strip sheet material from either the top or the bottom of a stack. A translatable member having a generally planar surface formed of an electrically insulative material is disposed proximate to either the top or bottom of a stack of sheet material. A pair of electrodes in the form of an electronic grid is secured to the planar surface. A DC voltage is applied to the electrodes selectively to effect a highly intense electric field only close to the surface of the member. The intensity of the electric field can be varied in predetermined relation to the applied DC voltage so as to determine the number of sheets simultaneously removed from the stack. The electric field exerts an attractive force only on the end-most sheet or sheets of the stack so that said end-most sheet or sheets only will be stripped from the stack.
摘要翻译： 公开了可以选择性地操作的装置和方法，其优点是从堆叠的顶部或底部剥离片材材料。 具有由电绝缘材料形成的大致平坦表面的可平移构件设置在片材堆叠的顶部或底部附近。 电子栅格形式的一对电极固定在平面上。 选择性地将电压施加到电极以实现仅靠近构件表面的高强度电场。 电场的强度可以以所施加的DC电压的预定关系变化，以便确定从堆叠中同时移除的片材的数量。 电场仅在堆叠的最终的片材或片材上施加吸引力，使得最终的片材或片材仅从堆叠中剥离。
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公开(公告)号：US4185205A
公开(公告)日：1980-01-22
申请号：US904341
申请日：1978-05-09
CPC分类号： H02J13/0037 , Y02E60/7892 , Y04S40/146 , Y10T307/461 , Y10T307/747 , Y10T307/944
摘要： A remote load controlling apparatus receives a disconnect signal on a line that is filtered and voltage limited. This disconnect signal sets a flip-flop which enables an oscillator and a solid-state switch. The enabled switch energizes a relay to disconnect the load from electric service. A counter counts the output of the enabled oscillator and provides a flip-flop reset signal after a local time delay that is determined by a particular incremented count state of the counter. The reset flip-flop disables the oscillator and solid-state switch to de-energize the relay and reconnect the load to electric service. The flip-flop may also be reset by a remote signal to disable the oscillator and solid-state switch and reconnect the load before the counter is incremented to its particular incremented count state. A second counter and a second solid-state switch may be added to ensure that the load is connected to electric service if a component of the apparatus should fail. The second solid-state switch is enabled by the pulse output of the enabled oscillator and is disabled when the oscillator stops generating pulses. The second solid-state switch is connected in series to the first solid-state switch and the relay is energized only when both solid-state switches are enabled. The second counter is provided to enable the oscillator on the leading edge of the disconnect signal and disable the oscillator after a time delay.
摘要翻译： 远程负载控制装置在被滤波和电压限制的线路上接收断开信号。 该断开信号设置触发器，其使能振荡器和固态开关。 启用的开关为继电器通电，以将负载与电气服务断开。 计数器对使能振荡器的输出进行计数，并在由计数器的特定递增计数状态确定的本地时间延迟之后提供触发器复位信号。 复位触发器禁用振荡器和固态开关，使继电器断电并将负载重新连接到电力服务。 触发器也可能被远程信号复位，以禁用振荡器和固态开关，并在计数器增加到其特定递增计数状态之前重新连接负载。 可以添加第二计数器和第二固态开关，以确保如果装置的部件失效，负载被连接到电力服务。 第二个固态开关由使能振荡器的脉冲输出使能，当振荡器停止产生脉冲时禁止。 第二固态开关与第一固态开关串联连接，只有当两个固态开关都使能时，继电器才通电。 提供第二个计数器，使振荡器能够在断开信号的前沿，并在时间延迟之后禁用振荡器。
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