A coupling element comprising elongate thermo-plastic strip material structured to provide that, on application thereto of heat in the range from about 300.degree. to about 500.degree. F. the outer portion thereof becomes fluidly adhesive, and is particularly adapted thereby to quickly form a ready bond...http://www.google.es/patents/US4184000?utm_source=gb-gplus-sharePatente US4184000 - Coupling device for glass or metal parts