发明名称 Occupancy indication device and method
摘要 An occupancy indicator for a door, and a method of use, one embodiment comprising a magnet a switching apparatus activatable by a person, a signaling device adapted to indicate one of at least two states, and a biasing mechanism. One embodiment may not be comprised of a magnet but may be comprised of a bolt assembly having a plurality of biasing mechanisms. The magnet or bolt assembly, switching apparatus, signaling device, and biasing mechanism are operatively coupled to automatically provide a signaling device state upon the door opening.
申请公布号 US7571694(B2) 申请公布日期 2009.08.11
申请号 US20070687537 申请日期 2007.03.16
申请人 BOERNER RICK 发明人 BOERNER RICK
分类号 G01D5/12;G09F19/04 主分类号 G01D5/12
代理机构 代理人
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