Patent ID: 6609866
Filing Date: 2003-08-26
Classification: F16B

Abstract:
An expandable metal body for an expansion bolt comprising:a) a middle portion having a plurality of elongated longitudinal slots; b) an upper portion including an upper circular member connected by a connection member, the upper circular member having a first central hole therethrough with a first cut extending therefrom, and a lower circular member having a second central hole therethrough, a second cut extending therefrom and an outer recess; and, c) a lower portion having a plurality of tabs on a distal end, whereby the middle portion has an annular cross-sectional configuration, the lower circular member is positioned such that the outer recess is engaged with the connection member, the upper circular member is positioned over the lower circular member such that the first and second central holes are aligned and the tabs are positioned so as to extend outwardly from the lower portion.