Patent ID: 8646762

Claim:
A spring installation mechanism, comprising: a bracket fixed against displacement; a spring extending along an axis and including a first end and a second end, the second end being fixed against displacement; a retainer secured to the first end and including helical threads; and a screw including a shank having helical threads engaged with the threads of the retainer, axial displacement of the screw toward the retainer limited by contact with the bracket, said contact permitting rotary displacement of the screw relative to the retainer and the spring; and wherein the bracket is formed with a hole located and sized to receive a threaded shank of the screw, and the bracket includes arcuate recesses surrounding the hole; and the screw includes a washer formed integrally with a head of the screw, and the screw includes arcuate pads, each pad being adapted to engage one of the recesses.