发明名称 |
Support and hoist systems |
摘要 |
A support generally comprising a mast component, a boom component extending forwardly from the mast component, and a stabilizing component for maintaining the support in a working disposition. The support may be used in conjunction with a lifting pole for forming a hoist system. The support and hoist system may be used to support or raise and lower an object such as a chute for debris. |
申请公布号 |
US5934437(A) |
申请公布日期 |
1999.08.10 |
申请号 |
US19960655499 |
申请日期 |
1996.05.30 |
申请人 |
JOYSUN LTD. |
发明人 |
ANSON, ANDREW PHILIP;VANDELINDE, HENRY |
分类号 |
B66C23/20;(IPC1-7):B65G11/00 |
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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