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. 28, 2006
Filed:
Nov. 18, 2004
Eugene Tokhtuev, Duluth, MN (US);
Anatoly Skirda, Duluth, MN (US);
Christopher J. Owen, Duluth, MN (US);
William Christensen, Hibbing, MN (US);
Eugene Tokhtuev, Duluth, MN (US);
Anatoly Skirda, Duluth, MN (US);
Christopher J. Owen, Duluth, MN (US);
William Christensen, Hibbing, MN (US);
Apprise Technologies, Inc., Duluth, MN (US);
Abstract
A turbidity measuring system is provided with a chamber and a sensor having a watertight housing, a light source, a first light focusing device for focusing a light emitted from the light source and passing therethough into a sample liquid, a second light focusing device for collecting at least one scattered light resulted form the focused light when passing the sample liquid, a photodiode for receiving the collected light thereby generating electronic signals, and an electronic board for processing the electronic signals. In particular, the watertight housing has a tilted bottom, the light detector includes at least two photodiodes for detecting separated turbidity measuring ranges, or an insert is placed at the bottom of the chamber having first and second insert channels each of whose axis pointing toward an axis of one of the cylindrically-shaped channels in the watertight housing in order to trap light.