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:
Aug. 06, 2002
Filed:
Mar. 24, 2000
Applicant:
Inventors:
Motoyuki Tsuihiji, Gunma, JP;
Hirofumi Iinuma, Gunma, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 1/712 ; B01D 3/702 ;
U.S. Cl.
CPC ...
B01D 1/712 ; B01D 3/702 ;
Abstract
Removables trapped by a first filter film are used as a second filter film and clogging of the first filter film is prevented, and an external force such as bubbles is applied to the second filter film to maintain filtering capacity. And when removables are mixed with the filtered water, the filtered water is recirculated again to the tank in which the wastewater is stored, and after it is checked that a desired inclusion rate has been reached filtration is started again.