Patent ID: 8740711

Claim:
A constant velocity joint, comprising: an outer race defining a plurality of tracks; a piston positioned within said outer race and selectively moveable along said tracks of said outer race; a seal disposed about said piston and abutting said outer race about substantially an entire perimeter of said piston, thereby generally sealing an interface between said piston and said outer race; an inner rotational member coupled for rotation with said outer race and configured to translate axially with respect to said outer race along said plurality of tracks; a boot assembly selectively coupled to both the inner rotational member and the outer race, thereby sealing at least part of the inner rotational member to the outer race; a cap disposed at a first end of said outer race, said first end being opposite a second end of said outer race receiving said inner rotational member, wherein said cap, said piston, said outer race, and said sealed interface between said piston and said outer race cooperate to define an enclosed volume (A); and a biasing element disposed in said enclosed volume (A) and extending from said piston to said cap, and said biasing element biases said piston away from said cap.