发明名称 Security door bar system and method of use
摘要 An energy absorbing security door bar system is disclosed. The system includes a generally straight elongate member having oppositely facing free ends and the ability to resiliently flex from a straight resting position to a bowed position in which straight lines drawn through the free ends of the elongate member form an included angle of less than about 170 degrees. In addition, the system includes anchoring means for releaseably anchoring the free ends of the elongate member to opposite sides of a door's frame to prevent the door from being opened. A method for preventing forced entry through a door secured with the above security door bar system is also disclosed.
申请公布号 US5466023(A) 申请公布日期 1995.11.14
申请号 US19940236889 申请日期 1994.05.02
申请人 WILLIAMSON, CHRISTOPHER H. 发明人 WILLIAMSON, CHRISTOPHER H.
分类号 E05C19/00;(IPC1-7):E05C19/18 主分类号 E05C19/00
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