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公开(公告)号：US4716352A
公开(公告)日：1987-12-29
申请号：US686590
申请日：1984-12-26
申请人： Richard L. Hurn , Michael R. Sell
发明人： Richard L. Hurn , Michael R. Sell
CPC分类号： H02J7/0042 , Y10S320/27
摘要： The invention is directed to an electrical charging base for a battery-powered appliance having an electrical charging contact and includes a frame defining a shaped cavity for receiving an appliance in only one orientation, a rectifying circuit disposed in the frame for converting source alternating current to charging direct current, the rectifying circuit including a charging output contact disposed for electrical connection to the charging contact of an appliance when disposed in the cavity and a source input contact for electrical connection to an electrical source. A bypass circuit is disposed in the frame for electrically connecting the source input contact to a source output contact. The invention further comprises a jumper for electrically connecting the source output contact of one charging base to the source input contact of a second charging base.
摘要翻译： 本发明涉及一种用于具有充电触点的电池供电设备的充电座，并且包括限定用于仅在一个方向上接收器具的成形腔的框架;设置在框架中用于将源交流电转换为 所述整流电路包括充电输出触点，所述充电输出触点被设置用于电气连接到器具的充电触点，并且设置在所述空腔中，以及源极输入触点用于电连接到电源。 旁路电路设置在框架中，用于将源输入触点电连接到源输出触点。 本发明还包括用于将一个充电座的源极输出触点电连接到第二充电座的源极输入触点的跳线。
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公开(公告)号：US06237230B1
公开(公告)日：2001-05-29
申请号：US09118118
申请日：1998-07-16
IPC分类号： B23D4500
CPC分类号： B27G19/04 , B23D59/002 , Y10T74/2191 , Y10T83/7734
摘要： A viewing window for covering an aperture in a hand-held circular saw includes an optically transmissive member adapted to be coupled with the guard. The member is movable between a closed position, wherein the member substantially covers the aperture, and the open position, wherein the member at least partially uncovers the aperture, to allow the cleaning of the member. A structure is provided for biasing the member to the closed position.
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