发明名称 Locking Jack for a Window Well Cover
摘要 A window well cover jack that is disclosed. The window well cover jack has three arms: a base arm, a support arm and an actuator handle, all connected to aid in the lifting of a window well cover and allow egress. In one embodiment, the jack is lockable in a stowed position. It is also possible to add a spring assist to aid in the lifting of a window well cover. Ideally, the window well cover jack is also lockable in a deployed position to aid in holding an ajar window well cover so as to facilitate escape. A simple link, which is easily broken by emergency crews with the proper tools but secure against intruders without said tools, connects the window well cover jack to a window well cover.
申请公布号 US2011314743(A1) 申请公布日期 2011.12.29
申请号 US20100826514 申请日期 2010.06.29
申请人 WARNER VINCE S.;RUFF DAVID 发明人 WARNER VINCE S.;RUFF DAVID
分类号 E05F11/02 主分类号 E05F11/02
代理机构 代理人
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