초록 ▼

Disclosed are several embodiments of a water-tight plug which are particularly suitable to close and seal holes drilled through the exterior wall surface of a house or mobile home during installation of insulation materials. The disclosed plugs include fluid-tight sealing means provided adjacent a h

Disclosed are several embodiments of a water-tight plug which are particularly suitable to close and seal holes drilled through the exterior wall surface of a house or mobile home during installation of insulation materials. The disclosed plugs include fluid-tight sealing means provided adjacent a head of the plug which is sandwiched during plug installation between a surface around the periphery of a hole and the plug head. In addition, the plugs include a projection from the plug head extending into the hole and a means for radially outwardly expanding at least a portion of the projection against the interior periphery of the hole and locking the projection in its radially expanded position to lock the plug in position.

대표청구항 ▼

A plug for closing and sealing holes in a surface comprising: a head portion of predetermined outer dimensions having on one side thereof an outer surface adapted to abut a surface defining the periphery of a hole; and, a projection extending from said head portion at said one side for insertion int

A plug for closing and sealing holes in a surface comprising: a head portion of predetermined outer dimensions having on one side thereof an outer surface adapted to abut a surface defining the periphery of a hole; and, a projection extending from said head portion at said one side for insertion into said hole, said projection including means for radially expanding at least a portion of said projection into engagement with the inside periphery of said hole to hold said plug in said hole, said projection comprising a resilient extension of said head portion on said one side, the interior wall of said extension tapering outwardly toward the interior periphery of a hole to be sealed along the axis of said extension from said head portion to the end of said extension, and said means for radially expanding said projection comprising a plate movable axially of and within said extension and disposed perpendicularly to said axis, said interior wall of said extension engaging with the outer edge of said plate, means for axially moving said plate from a rest position at the end of said extension toward said head portion along said interior wall causing expansion of an exterior peripheral wall of said extension, and at least one locking means spaced between the distal end of said extension and said head portion for retaining said plate in a predetermined locked position.