发明名称 Breakaway bi-folding door assembly
摘要 A breakaway bi-folding door assembly, which would include a pair of bi-folding doors of the type having a first end hinged to an upper frame, and a second end travelling within a slot in the frame to allow the doors to fold and unfold between open and closed positions for defining an open or closed doorway through a passage. Furthermore, the assembly would include a movable plate member for each of the bi-folding doors, positioned on the frame, and hinged along one end for moving outward from the frame.
申请公布号 US5242005(A) 申请公布日期 1993.09.07
申请号 US19920974685 申请日期 1992.11.12
申请人 OPTIMA, INC. 发明人 BORGARDT, RONALD
分类号 E05D15/26;E06B3/48 主分类号 E05D15/26
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