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:
Mar. 22, 1994
Filed:
May. 20, 1992
Milos Krofta, Lenox, MA (US);
Other;
Abstract
A tank receives raw water for clarification by flotation. An array of lamellae define a set of generally vertically oriented channels with solid side walls. Flotation occurs in each channel. The channels are preferably inclined. With a round tank, a frame rotates an interlocking array of radial and concentric lamellae. A stationary raw water inlet distribution box fills the channels with raw treated water. An aligned clarified water collection box withdraws clarified water. A stationary skimmer directs floating sludge to a removal conduit with a variable pitch screw conveyor. Sliding seals on the lamellae isolate individual channels or groups of channels as they move through the tank. The channels lock and move columns of water through the tank with substantially no turbulence.