发明名称 Double door security device
摘要 The double door security device uses at least two opposed hinges of the double door pair to secure corresponding door bar retainers to the door frame structure. The hinge pin is removed and the door bar retainer is placed upon the hinge, with a hinge pin of suitable length reinstalled through the hinge to secure the door bar retainer pivotally to the hinge. The door bar retainer, in combination with the hinge, defines a door bar passage for the removable installation of a door bar therethrough. The retainers may be configured to accept door bars having various cross sectional shapes, e.g. two by four lumber, square and round tubing and pipe, etc. The hinge attachment ends of the retainers are preferably beveled to minimize marring of the door and door frame adjacent to the hinge, and to serve as a door stop limiting the opening swing of the door.
申请公布号 US2007158957(A1) 申请公布日期 2007.07.12
申请号 US20060486058 申请日期 2006.07.14
申请人 发明人 KRAMER ROBERT E.;LEPORE ANTHONY;KRAMER TERRY M.
分类号 E05C19/00 主分类号 E05C19/00
代理机构 代理人
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