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:
Nov. 26, 2013
Filed:
Mar. 25, 2011
Kazuhiro Toyooka, Yokohama, JP;
Hiroshi Noguchi, Tokyo, JP;
Shigeo Sato, Kiyose, JP;
Meidensha Corporation, Tokyo, JP;
Abstract
In a membrane separation apparatus, a cleaning effect for membrane elements by scrubbing is improved. In the membrane separation apparatusincluding a separation membrane(membrane element) dipped in treated liquid in a treatment bath, and air diffusing meansfor diffusing air bubblesfor cleaning the separation membrane, an air bubbles staying plateis provided between the air diffusing meansand the separation membrane. The air bubbles staying plateis configured to allow air bubblesdiffused from the air diffusing deviceto stay, by which air bubblesgather each other to form air bubbleshaving large diameters. By causing air bubbles having large diameters to act on the separation membrane, air bubblescan be allowed to act whole the separation membrane