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. 19, 2002
Filed:
Feb. 27, 2001
Sakae Kosanda, Kanagawa-ken, JP;
Yuichi Fuchu, Tokyo, JP;
Yutaka Niida, Tokyo, JP;
Koichi Masuda, Tokyo, JP;
Seiichi Tsuda, Kanagawa-ken, JP;
Ebara Corporation, Tokyo, JP;
Abstract
A solid-liquid separator including a separation tank, a treated water outlet ( ) at the top of the tank, a sludge outlet ( ) at the bottom of the tank, a draft tube ( ) near the center in an upper inner zone of the tank and connected to a raw water inlet pipe ( ), horizontally rotatable multistage stirring blades A ( ) in the draft tube, horizontally rotatable multistage stirring blades B ( ) immediately below the draft tube, a horizontal baffle ( ) below the stirring blades B, a floating filter medium layer ( ) around the outside of the draft tube above the stirring blades B, and a screen ( ) fixed below the water level above the filter medium layer, and optionally, a filter medium-receiving screen ( ) around the lower outside of the tube in combination with stirring rods ( ) above the screen or aeration nozzles.