Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 20, 2007
Patent Application Number
11292839
Date Filed
December 1, 2005
Patent Primary Examiner
Patent abstract
A method and apparatus for the delivery of slurry solution comprising an ultrasonic flow meter positioned between a fluid preparation manifold and a slurry delivery arm, and a shutoff valve positioned between a proportional valve and the slurry delivery arm. Also, a method and apparatus for the delivery of slurry solution including an ultrasonic flow meter positioned to receive fluid from a fluid preparation manifold, a proportional valve and stepper motor in communication with the flow meter, and a reverse flow restrictor in communication with the proportional valve and a slurry delivery arm.
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