发明名称 |
Automatic safety latch lift hook unit |
摘要 |
A lift hook unit is described having a hook element swiveled to a supporting yoke; the hook element has a safety latch which is automatically movable from a normal open position to a closed position upon loading of the hook and is automatically returnable to open condition upon relaxing the load. A manual handle enables manual movement and guidance of the hook element in various directions as needed.
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申请公布号 |
US4039219(A) |
申请公布日期 |
1977.08.02 |
申请号 |
US19760698881 |
申请日期 |
1976.06.23 |
申请人 |
CHICAGO PNEUMATIC TOOL COMPANY |
发明人 |
BUGMAN, MICHAEL |
分类号 |
B66C1/36;(IPC1-7):B66C1/36 |
主分类号 |
B66C1/36 |
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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