Patent ID: 7993085

Claim:
An expandable collet anchor system comprising: a collet body defining a longitudinal axis and comprising: a first end defining a generally circular opening; a first wall portion adjacent to the first end, the first wall portion having an interior surface, an exterior surface, a protrusion extending from the exterior surface having a leading face oriented towards the first end and a trailing face oriented away from the first end, and at least two secondary slots extending longitudinally from the first end to thereby create at least two fingers, each having a distal end at the first end; a second end defining a generally circular opening having a diameter; a second wall portion adjacent to the second end, the second wall portion having an interior surface and an exterior surface; a stud defining a longitudinal axis and comprising a stud head at a proximal end; a body portion; a distal end; at least one radially extending protrusion at or proximate to the distal end, wherein the stud body portion has at least one threaded portion and is sized to fit through the generally circular opening of the second end; and a first part of a collet body anti-rotation means for engaging with an auxiliary structure having a second part of the collet body anti-rotation means and substantially limiting rotation of the collet body when engaged with the auxiliary structure, wherein at least one interior surface of the collet body defines at least one threaded portion complementary to the at least one threaded portion of the stud, and wherein an interior portion of the collet body defines a minimum diameter that is less than a maximum diameter of the radially extending protrusion of the stud to prevent axial translation there past when at least the distal end of the stud is between the first end and the second end of the collet body.