发明授权
- 专利标题： Lift system for tilt-up walls
- 专利标题（中）： 用于倾斜墙壁的升降系统
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申请号： US353575申请日： 1982-03-01
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公开(公告)号： US4437642A公开(公告)日： 1984-03-20
- 发明人: Neil L. Holt
- 申请人： Neil L. Holt
- 申请人地址： CA San Mateo
- 专利权人： The Burke Company
- 当前专利权人： The Burke Company
- 当前专利权人地址： CA San Mateo
- 主分类号： B66C1/66
- IPC分类号： B66C1/66 ; E04G15/04 ; E04G21/14 ; B28B7/28
摘要：
A hoisting attachment for a tilt-up wall slab is provided with a remotely operable quick release mechanism which is under the control of the positional attitude of a hoisting cable-attached shackle.An improved assemblage of wall slab insert anchor, support stand for the insert anchor, and a recess former frictionally attached to the upper end of the anchor is also provided.
公开/授权文献
- US5529444A Tool bit and tool bit chuck for manually operated tools 公开/授权日：1996-06-25
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