A method of coating a pre-formed trainable material, such as nitinol wire, with a heat resistant substance, heat treating, and cooling to form a desired shape. The substance can be removed by various methods after heat treatment, depending upon the composition of the substance. The method includes forming...http://www.google.com.au/patents/US6797083?utm_source=gb-gplus-sharePatent US6797083 - Method of training nitinol wire