Plug for concrete floor penetrations
作者： Thomas J. Kosik , Vincent F. Cannistraro , Robert McCaffrey , David Duncanson , Douglas C. Dayton
DOI:
关键词: Floor slab 、 Spark plug 、 Conformable matrix 、 Cover (algebra) 、 Structural engineering 、 Engineering
摘要: A plug includes a conformable element and structural cover or top plate for plugging hole in concrete floor slab. This permits workman to the hole; unplug and, some embodiments, fit pipe through hole. Moreover, may be swapped-out on site, allowing adjust diameter outer surface of meet on-site conditions.
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