Patent ID: 7198444

Claim:
A multi-grip blind rivet; which comprises: a mandrel; a hollow cylindrical body having an outer surface and formed about an axis thereof and adapted to receive at least a portion of the mandrel therethrough; a first plurality of indentations formed in the outer surface of the hollow cylindrical body in a first transaxial plane; a second plurality of indentations formed in the outer surface of the hollow cylindrical body in a second transaxial plane spaced axially from the first transaxial plane; each of the first plurality and second plurality of indentations formed with a base surface having a first arcuate transaxial edge and a second arcuate transaxial edge spaced axially from the first transaxial edge; the first arcuate transaxial edge and the second arcuate transaxial edge being located radially inboard of the outer surface of the hollow cylindrical body; and the first arcuate transaxial edge and the second arcuate transaxial edge concavely facing each other and having noncoincident centers of curvature.