Patent ID: 7814716

Claim:
A clip for use in affixing a construction unit to a building structure, the clip comprising: a thin tab elongated in a first direction between an interior end and an exterior end, the tab comprising a groove at the exterior end of the tab, the groove defined by two or more groove portions, wherein each groove portion extends generally in two transverse directions, each transverse direction generally orthogonal to the first direction and to the other one of the transverse directions, wherein the groove is shaped to receive a flange which projects from a frame of the construction unit in the two transverse directions such that an exterior one of the groove portions is located on an exterior of the flange and an interior one or the groove portions is located on an interior of the flange and wherein at least one of the groove portions comprises one or more projections that project into the groove for biting into the flange received therein; and one or more attachment points at one or more corresponding locations closer than the groove to the interior end of the tab, the one or more attachment points including: one or more apertures, one or more projections, or one or more apertures and one or more projections.