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