发明名称 |
Unitary body swiveling hoist ring and method of manufacture |
摘要 |
An improved hoist ring and method of manufacturing a hoist ring having a generally U shaped ring member and two substantially parallel legs. A pair of apertures communicated through the parallel legs and rotationally engage a pair of elongated shoulders protruding from a body member. A taper in the upper wall surface of the apertures allows the ring member to be inserted over the shoulders and then bent to a U shape to form the device and also allows for the assembly of the device from two unitary structures.
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申请公布号 |
US6749237(B1) |
申请公布日期 |
2004.06.15 |
申请号 |
US20020107374 |
申请日期 |
2002.03.26 |
申请人 |
MA SHU LAN |
发明人 |
MA SHU LAN |
分类号 |
B66C1/66;F16G15/06;F16G15/08;(IPC1-7):B66C1/00 |
主分类号 |
B66C1/66 |
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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