The spring element 44 of FIG 4 is held in the restrained position by the shape memory material release mechanism 48 that has been deformed in {HEAD ~ the martensitic state} to form of {TAIL ~ a hook} or loop 
to form of
The spring element 44 of FIG 4 is held in the restrained position by the shape memory material release mechanism 48 that has been deformed in { HEAD ~ the martensitic state } to form of { TAIL ~ a hook } or loop
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH