Patent ID: 8066265

Claim:
A gas suspension assembly comprising: a first suspension device having opposing first and second ends and a first longitudinally-extending axis extending between said first and second ends, said first suspension device including a spring element extending helically about said first axis such that a plurality of coils are formed between said first and second ends, said plurality of coils at least partially defining an interior of said first suspension device; and, a second suspension device disposed within said interior of said first suspension device, said second suspension device including: a first end wall formed from a first polymeric material having a first value for a preselected material property and including an opening extending therethrough; a second end wall spaced from said first end wall such that a second longitudinally-extending axis extends therebetween, said second axis disposed in approximate alignment with said first axis of said first suspension device; a side wall formed from said first polymeric material having approximately said first value for said preselected material property thereof, said side wall extending between said first and second end walls and at least partially defining a gas chamber therebetween; a third end wall extending across said opening in said first end wall and secured thereto in a substantially fluid-tight manner, said third end wall formed from a second polymeric material having a second value for said preselected material property that is different from said first value of said first polymeric material; and, a connector fitting received within said third end wall such that a substantially fluid-tight seal is formed therewith, said connector fitting including a passage extending therethrough in fluid communication with said gas chamber and an open end adapted to receive and retain an associated gas transmission line.