The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2001
Filed:
Mar. 09, 1999
Toray Industries Inc., , JP;
Abstract
A fluid separation element assembly comprises a fluid separation element having a membrane unit and a wrapping material formed around the membrane unit, an anti-telescoping plate attached to at least one end of the fluid separation element at a condition free to be detached, and a feed water seal member for preventing feed water from leaking through a gap between the fluid separation element and the anti-telescoping plate. The membrane unit is formed by a separation membrane, a permeate carrier material and a feed carrier material which are spirally wound around a permeate collection tube. By providing the anti-telescoping plate detachably, when the separation membrane has reached its life, it is possible to reuse other members. By providing the feed water seal member, it is possible to ensure a large diameter of the fluid separation element as well as to appropriately prevent leakage of feed water into a gap between a pressure vessel and the fluid separation element, thereby increasing the amount of treated water and improving the quality of the treated water.