I am answering my own question from above, as I just figured it out...
my situation is described here:
http://www.pa.ethz.ch/3400_an_intern...en_CH/index_EN

I have been at working at the ETH and was wondering how to claim my pension upon return to the US. BTW: I found out the US is a member state. Sorry for posting without doing comprehensive research myself first!
Thanks