The piston and seal of the invention are particularly suited for {HEAD ~ use} as {TAIL ~ a floating piston} with seal 
as
The piston and seal of the invention are particularly suited for { HEAD ~ use } as { TAIL ~ a floating piston } with seal
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH