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.

Date of Patent:
Feb. 07, 1989

Filed:

Oct. 01, 1987
Applicant:
Inventor:

Larry A Lien, Solana Beach, CA (US);

Assignee:

Desalination Systems, Inc., Escondido, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210247 ; 21032183 ;
Abstract

Disclosed are spiral-wound membrane cartridge constructions for use in ultrafiltration and reverse-osmosis separation equipment. The membrane constructions include a membrane layer directly bonded to a permeate carrier layer characterized by a channel material having a plurality of parallel ribs extending in a transverse permeate-carrying direction, interconnected by a relatively thin matrix of smaller fibrils. It advantageously reduces resistance to permeate flow to a central collection point, and can be employed to separate both liquid and gaseous fluids.


Find Patent Forward Citations

Lien, Larry. (1989). Spiral-wound membrane with improved permeate carrier (U.S. Patent No. 4802982). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4802982

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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