发明名称 |
Portable hydraulic master ratchet |
摘要 |
A manually actuated hydraulic cylinder with a retractable piston for varying the distance between two cables secured to a barge attachment ring on the end of the cylinder and a pelican hook and keeper disposed on the end of the piston as used in the marine industry for coupling barges.
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申请公布号 |
US7536970(B1) |
申请公布日期 |
2009.05.26 |
申请号 |
US20070938631 |
申请日期 |
2007.11.12 |
申请人 |
MCCOY PATRICK M;HILLER III WILLIAM H |
发明人 |
MCCOY PATRICK M;HILLER, III WILLIAM H |
分类号 |
B63B21/04 |
主分类号 |
B63B21/04 |
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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