the ball seat 92 and creates a seal and therefore all pressure within the internal portion of the work string which includes the apparatus will be subjected to this pressure the support piston 68 will be urged downward by the force acting on the ball 116 once a predetermined amount of force is reached the shear pins will shear as those of ordinary skill in the art will recognize fig6 is a sequential view of the assembled apparatus seen in fig5 with the support piston 68 in an intermediate position as noted earlier the shear pins are set to shear at a predetermined force hence once the pressure rises to a certain level the shear pins sheared and the support piston 68 will begin traveling in a direction away from the fingers 12 14 as seen in fig6 note that in fig6 the thread profiles 24 26 are still engaged with the internal thread means 56 fig7 is a sequential view of the apparatus seen in fig6 with the support piston 68 in the fully released position as understood by those of ordinary skill in the art the continued application of pressure causes the support piston 68 travel to the position seen in.