A seal ring holder for membrane elements which is capable of attaining an increase in the area of membranes packed per element; and a membrane element using the seal ring holder, are provided. The seal ring holder for membrane elements which is disposed at an end part of a spiral wound membrane element...http://www.google.com.au/patents/US7910000?utm_source=gb-gplus-sharePatent US7910000 - Seal ring holder for membrane element and membrane element
