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:
Feb. 26, 2002
Filed:
Jan. 16, 2001
Franc Saux, Sainte Foy D'Aigrefeuille, FR;
Jean-Michel Espenan, Deyme, FR;
Jean-Claude Bontemps, Gif sur Yvette, FR;
Polymem, Fourquevaux, FR;
Abstract
The invention concerns a water treatment method and installation, which consist in subjecting the water to be treated to membrane filtration ( ) to satisfy the requirement for a relatively high flowrate of water for ordinary use (UF), subjecting the water that has been subjected to membrane filtering to reverse osmosis filtering ( ) to satisfy the requirement for a smaller flowrate of water of improved quality (OS) and, outside periods of production of water filtered by reverse osmosis, sweeping the upstream face of the osmosis membrane ( ) with the flow of membrane-filtered water drawn off to be consumed.