| 发明名称 |
Zero Fleet Winch for Stage Use |
| 摘要 |
A zero fleet winch with guides that move while a cable is wound on a drum. The guides hold the cable always at 90 degrees to the drum. A tensioning turnaround sheave keeps the cable tight.
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| 申请公布号 |
US2009309081(A1) |
申请公布日期 |
2009.12.17 |
| 申请号 |
US20090484188 |
申请日期 |
2009.06.13 |
| 申请人 |
PRODUCTION RESOURCE GROUP L.L.C |
发明人 |
KEMPF JAMES |
| 分类号 |
B66D1/36;B25B25/00 |
主分类号 |
B66D1/36 |
| 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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