Apparatus for producing a corrected mold for a foot having a rear portion and a forefoot portion, includes a resilient cushion which relatively immobilizes the forefoot portion with respect to the rear portion thereof when the foot is supporting its respective portion of full body weight, the resilient...http://www.google.com.au/patents/US4522777?utm_source=gb-gplus-sharePatent US4522777 - Method and apparatus for making corrected custom foot molds