A threadless self-swaging coupling for joining or capping pipe. The coupling includes a coupling member and an actuating member of a heat shrinkable polymer material or a shape memory alloy material which undergoes a change in shape when heated from a martensitic state to an austenitic state. The coupling...http://www.google.es/patents/US5662362?utm_source=gb-gplus-sharePatente US5662362 - Swage coupling including disposable shape memory alloy actuator
Swage coupling including disposable shape memory alloy actuator
