A cellular reservoir flexible pressure vessel is formed as a series of closely packed tubes fitted into a pair of opposing end caps. The end caps have individual receptacles sized and shaped to receive the tube ends that are secured with adhesive or radio frequency welding. At least one end cap has a...http://www.google.com.au/patents/US7131553?utm_source=gb-gplus-sharePatent US7131553 - Cellular reservoir flexible pressure vessel, apparatus and method for making same
