Patent ID: 7762533

Claim:
A connected assembly, comprising: a first article having an opening on at least one end; a second article having a planar surface; a plug fastener fixedly connecting the at least one end of the first article against the second article's planar surface, the plug fastener comprising: a first hemispheroidal portion, a second hemispheroidal portion opposed to the first hemispheroidal portion, the first and second hemispheroidal portions being symmetrical to one another about their plane of opposition, each hemispheroidal portion comprising: a mating surface truncating the respective hemispheroidal portions, the mating surface defining a mating plane that is parallel to the plane of opposition whereby the mating planes of the respective first and second hemispheroidal portions are opposite from each other across the plane of opposition, and ridges extending outwardly from the respective hemispheroidal portions between the mating surfaces and the plane of opposition, and frictionally engaging an interior surface of the first article opening, and an aperture extending through the first and second hemispheroidal portions, and between openings in the first and second mating surfaces; and a fastening device passing through the aperture and into the second article, either the first or second mating surface seated on the second article's planar surface.