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:
May. 14, 2002
Filed:
Nov. 24, 1999
Joseph P. Hewitt, Issaquah, WA (US);
Mt. Fury Company, Inc., Issaquah, WA (US);
Abstract
A system and method for measurement and control of suspended solids in a fluid includes a sensor, dosage supervisor and logic module. The sensor includes a measurement chamber with a piston. A diverter valve controls introduction of sample fluid into the measurement chamber in coordination with position of the piston. A measurement cycle includes the diverter valve allowing sample fluid into the measurement chamber as the piston retracts from the measurement chamber. The diverter valve prevents sample fluid from leaving the measurement chamber as the piston extends into the measurement chamber to compress the sample fluid. After a certain time of compression, light is transmitted across a portion of the sample fluid. The light received by a light detector is used as a measurement of suspended solids concentration in the fluid. This measurement is used to control introduction of polymers into a fluid source.