Static structures (e.g. – buildings) – Frangible section or means – In dissimilar material member
Patent
1979-06-27
1981-11-24
Perham, Alfred C.
Static structures (e.g., buildings)
Frangible section or means
In dissimilar material member
52100, 52125, 52302, 52303, 523094, 52514, 52743, 217109, 220234, E04B 100, E04G 2100
Patent
active
043016294
ABSTRACT:
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.
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Cooksey James
Perham Alfred C.
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