发明名称 Breakaway sign-stand
摘要 A breakaway member for a sign-stand having a two piece mast that supports a sign includes a first end that connects to a first mast piece which is secured to the sign, a second end that connects to a second mast piece, and a breakaway section that fractures therethrough upon impact thereby carrying the first end, the first mast piece and the sign away from the second mast piece. In a preferred embodiment, the breakaway member has a generally I-beam shaped cross-section. The first and second mast pieces have a generally rectangular and hollow cross-section. The first end of the breakaway member is disposed in the first mast piece, the second end of the breakaway member is disposed in the second mast piece, and the breakaway section is located between the first and second mast pieces.
申请公布号 US2003183740(A1) 申请公布日期 2003.10.02
申请号 US20020112130 申请日期 2002.03.29
申请人 EASTERN METAL OF ELMIRA, INC. 发明人 KNAPP MICHAEL;HOWE DOMINIC
分类号 E01F9/018;(IPC1-7):F16M13/00 主分类号 E01F9/018
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