发明名称 MAGNETIC EXCAVATION SAFETY MARKER
摘要 A magnetic excavation marker is described below that includes a magnet and a stiff, resilient and brightly colored visual indicator. The marker is used by placing the marker onto an object to be protected, such as a manhole cover or valve. The magnet attaches the marker to the protected object with magnetic force. The marker will then protect the object by providing a highly visible indication of the presence of the object, even if the object is buried. The stiff and resilient qualities of the visual indicator ensure that it will remain upright and visible, even after it has been stepped on or run over. A handle is attached to the magnet or to a housing holding the magnet. The handle gives a user added leverage to aid in overcoming the force of the magnet when the user desires to remove the maker from the protected object.
申请公布号 US2011146563(A1) 申请公布日期 2011.06.23
申请号 US20100973510 申请日期 2010.12.20
申请人 CRAWFORD RICHARD;WHITTERS JAMEY 发明人 CRAWFORD RICHARD;WHITTERS JAMEY
分类号 G01D5/12 主分类号 G01D5/12
代理机构 代理人
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