发明名称 |
Billboard advertising copy hoist system |
摘要 |
A hoist system can be used to raise articles. The hoist system can include a mounting structure attachable to a billboard structure, a pole member fastenable to a mounting structure and a winch assembly. The winch assembly has at least one component coupled to the pole. The winch assembly is capable of winding a flexible line. The hoist system can be utilized to raise and lower vinyls, other signage equipment or tools to billboard structures. The pole can be a single piece unit having a bend. |
申请公布号 |
US7367462(B1) |
申请公布日期 |
2008.05.06 |
申请号 |
US20060330755 |
申请日期 |
2006.01.12 |
申请人 |
TPI TECHNOLOGY GROUP, INC. |
发明人 |
MCMURRAY ROBERT B.;RIEDL PAUL T. |
分类号 |
B66C23/20 |
主分类号 |
B66C23/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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