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. 09, 2004
Filed:
Aug. 06, 2002
Donald Neil Ruehrwein, Batavia, IL (US);
Chicago Bridge & Iron Company, Plainfield, IL (US);
Abstract
A ClariCone-type clarifier is provided with a level sensor, a flow-condition detector, and a controller that work together for automatic control of a blow-down valve. The flow-condition detector detects a condition of the flow through the tank. The detector sends the input to the controller, which uses the input to determine a desired blow-down level. The level sensor detects the height of slurry in the tank, and the controller opens the valve when the slurry level reaches the level determined by the controller. The valve can be set to close after a predetermined fixed period of time, by a timer, or when the level sensor detects that the slurry level has fallen to a predetermined or calculated blow-down termination level.