发明名称 |
Hammer-in expansion fastener |
摘要 |
A hammer-in expansion fastener for embedding into a wall and receiving a screw having an elongated body which is provided with two opposite ends and a bore extending into it from one end to receive a screw. The other end of the body is tapered inwardly to a leading end of the body to an extent allowing the wall plug to be driven into a wall of building material. The other end is further provided with a non-uniform taper of:(a) between 12° to 18° to the longitudinal axis of the body at the leading end and about 10 mm in length measured along the longitudinal axis; and(b) from 4° to 8° to the longitudinal axis of the body at a portion remote from the leading end.
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申请公布号 |
US6371706(B1) |
申请公布日期 |
2002.04.16 |
申请号 |
US20000463404 |
申请日期 |
2000.03.22 |
申请人 |
THE RAWLPLUG COMPANY LIMITED |
发明人 |
WALLACE THOMAS CAMPBELL |
分类号 |
B25D3/00;B26F1/32;F16B13/00;(IPC1-7):F16B13/04;F16B21/00 |
主分类号 |
B25D3/00 |
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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