Patent ID: 6474920
Filing Date: 2002-11-05
Classification: F16B

Abstract:
An expansion bolt adapted to be inserted into an object, said expansion bolt comprising:a pair of symmetrical bolt halves, each of said bolt halves comprising an inner side, an outer side, a front face, and a rear face; an internally threaded nut; outer threads are provided on the outer side of each of said bolt halves, such that when the inner sides of said bolt halves are opposed to one another, the outer threads of the bolt halves receive said internally threaded nut to secure said bolt halves together; an insert block is secured between the inner sides of said bolt halves prior to attachment of the internally threaded nut, said insert block is shorter than the longitudinal length of said bolt halves; and said bolt halves comprising a securing means that physically blocks said insert block from coming out of said expansion bolt between the front faces of said bolt halves.