发明名称 |
Trench forming assembly having removable pin anchoring mechanism |
摘要 |
An assembly for forming a trench is described comprising a frame having two elongated members that define a support surface and at least one opening. The assembly also includes a removable grate that is disposed on the support surface and includes a hook that is disposed proximate the opening defined by the elongated frame members. The assembly also includes a removable pin that is slidably inserted through an opening defined by an elongated member and is mechanically engaged by the hook of the grate to secure the grate to the frame.
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申请公布号 |
US2002154952(A1) |
申请公布日期 |
2002.10.24 |
申请号 |
US20020172964 |
申请日期 |
2002.06.17 |
申请人 |
ABT, INC. |
发明人 |
GUNTER CHARLES E. |
分类号 |
E01C19/50;E03F5/06;(IPC1-7):E02D23/00;B63C3/06;E21D9/00 |
主分类号 |
E01C19/50 |
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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