Patent ID: 7581361

Claim:
A plug for securely but removably covering a cylindrical hole of pre-determined, relatively large diameter in a floor or deck type building structure comprising: (a) a head portion that has an upper surface, a flat lower surface and a peripheral edge surface; (b) a base portion fixed to said lower surface and having a central vertical axis, said base portion having at least two diametrically opposed vanes, each of said vanes having an outer vertical edge surface that is spaced from said peripheral edge surface and extends perpendicularly from said lower surface to a lower edge, each of said vertical edge surfaces being parallel to said central axis and separated from the other vertical edge surface by a distance approximately equal to said diameter, each of said vanes having a tapered edge surface extending downwardly and inwardly from said lower edge; and (c) a recessed removal tool receiving element in said head portion and adapted to facilitate removal of the plug from the hole.