Patent ID: 8613430

Claim:
A gas spring assembly capable of use between an associated sprung mass and an associated unsprung mass, said gas spring assembly comprising: a first end member adapted for securement on one of the associated sprung and unsprung masses; a second end member disposed in spaced relation to said first end member and defining an axis of motion therebetween, said second end member adapted for securement on the other of the associated sprung and unsprung masses; a flexible wall having a first end, an opposing second end and a chamber at least partially defined therebetween, said first end secured to said first end member such that a substantially fluid-tight seal is formed therewith; an end closure shaped to cooperatively engage said second end member, said end closure extending across said second end such that a substantially fluid-tight seal is formed between said flexible wall and said end closure; and, a biasing assembly joining said flexible wall to said second end member, said biasing assembly disposed along an elongated connecting member between a flange and said second end member, said biasing assembly allowing controlled biasing movement between said second end of said flexible wall and said second end member wherein contact between said flexible wall second end and said second end member is maintained by said biasing member during relative movement of said flexible wall and said second end member as at least a portion of said flexible wall moves off of said second end member; said biasing assembly includes a biasing element, said flange, and a stop member inserted and operatively connected between said flange and said second end member, said stop member and said flange are urged toward said second end member to compress said biasing element and limit said controlled biasing movement.