发明名称 Box for reserving a hollow space, in particular in a concrete slab.
摘要 <p>The box (1) has a shell opening downward and presenting an upper wall (2) and a peripheral wall (3) extending downward in which a part of a lower edge (6a) is used as support. A closing unit cooperates with the shell for closing its lower opening and presents a lower wall (4) opposite to the upper wall of the shell, and is engaged inside the peripheral wall of the shell. The lower wall has inclined sidewalls, and the peripheral wall of the shell extends downward beyond the sidewalls. The lower wall has a notch formed from a side of a lower surface of the sidewalls. Independent claims are also included for the following: (1) a deformable plate for making a shell of a reservation box (2) a deformable plate for making a shell closing unit of the box.</p>
申请公布号 EP2009200(A1) 申请公布日期 2008.12.31
申请号 EP20080158880 申请日期 2008.06.24
申请人 GRIPP 发明人 MENET, GEORGES
分类号 E04G15/00 主分类号 E04G15/00
代理机构 代理人
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