Importance

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Abstract

A nosepiece for use with a riveter for installing a blind bolt. The nosepiece has an active area which is annular and effectively matched to the dimensions of the locking collar of the blind bolt. No tapered surface interferes with the sleeve during installation of the blind bolt. Instead, the active area includes a protrusion which intersects a support surface generally at a ninety degree angle. Providing a minimum or no transition fillet radius from the active area to the support area allows for a minimum length of the active area, providing maximum reinforcement to the active area. It also concentrates the operating stresses in a known area, dispersing them from the critical, working surface of the active area, providing an expected failure mode.

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First Claim