公开(公告)号：US20240050899A1

公开(公告)日：2024-02-15

申请号：US18547660

申请日：2022-03-03

申请人： BL TECHNOLOGIES, INC.

发明人： Travis Gerald STIFTER ,  Viadimir PAVLOVIC ,  Michael WIMBERLY ,  Philip STAFFIN-WIEBE

IPC分类号： B01D63/10

CPC分类号： B01D63/107 ,  B01D2313/08 ,  B01D2313/19

摘要： A by-pass control sleeve has circumferential protrusions along its outer surface. The protrusions of the by-pass control sleeve may be distributed along the length of the sleeve with constant diameter sections of the sleeve therebetween. The protrusions may be asymmetrical and/or may have a steep and/or concave curved forward face. A method of making a by-pass control sleeve comprises molding the protrusions on an outer surface of the sleeve. A method of installing the by-pass control sleeve comprises sliding the sleeve onto an end of a spiral wound membrane element. A combination of the by-pass control sleeve fixed to the spiral wound membrane element may be installed in a pressure housing.