The present invention is a method for manufacturing inflatable articles, or bladders for inflatable articles, that is time-efficient, simple, inexpensive and permits the uninterrupted manufacture of numerous and even customized article or bladder configurations and sizes, without expensive configuration-specific,...http://www.google.es/patents/US7622014?utm_source=gb-gplus-sharePatente US7622014 - Method for manufacturing inflatable footwear or bladders for use in inflatable articles
Method for manufacturing inflatable footwear or bladders for use in ...