Patent ID: 9261126
Filing Date: 2016-02-16
CPC Classification: B21J,B21K,B23P,F16B,Y10T

Claim Text:
1. A rivet bolt in combination with an attachment, comprising: said rivet bolt comprising: a flange; said flange includes a top surface and a bottom surface: an upper cylindrical portion; a first fillet between said upper cylindrical portion and said flange; a shaft; a second fillet between said shaft and said flange; said shaft includes a threaded portion; said upper cylindrical portion includes an upper edge; said upper cylindrical portion includes an interior base surface; an inverted frusto-conical surface extending from said upper edge of said cylindrical upper portion to interior base surface; said attachment comprising: a top surface and a bottom surface; a cylindrical bore therethrough; an inverted frusto-conical surface extending from said top surface of said attachment to said cylindrical bore through said attachment; said top surface of said flange of said rivet bolt engages said bottom surface of said attachment; and, said upper cylindrical portion of said rivet bolt resides partially within said cylindrical bore of said attachment.