Retractable air supply connector system for a fuel cell assembly

A system for providing a retractable first and second air supply connectors from an air supply plenum to first and second fuel cell assembly components, comprising:

• a) first and second socket elements defining first and second process air passages for said first and second fuel cell assembly components, respectively;
• b) first and second process air supply ports in said air supply plenum;
• c) said first and second air supply connectors, each having
• i) a nipple element having means for mating with said respective socket element and having a passage for connecting with said respective process air passage in said respective socket element, and
• ii) an inner bellows disposed between said respective first and second air supply port in said plenum connectable to a respective source of process air and said respective passage in said nipple element;
• and
• d) an outer bellows surrounding said first and second inner bellows and disposed between a source of pressurized air and said nipple elements for selectively inflating said outer bellows to cause said first and second nipple elements to mate selectively with said respective first and second socket elements.