US Patent 6843139 Flow instrument with multisensors
Patent 6843139 was granted and assigned to Rosemount Inc. on January, 2005 by the United States Patent and Trademark Office.
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Patent abstract
An instrument used to control fluid flow. The instrument has a flow restrictor between an inlet and an outlet. First and second multisensor have sensing surfaces in the inlet and outlet that sense pressures and temperatures of the fluid flow. A circuit generates a mass flow output based on a difference between the pressure in the inlet and the pressure in the outlet. The mass flow output including a temperature correction as a function of at least one of the sensed temperatures in the inlet and outlet.
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Patent Inventor Names
David A. Broden0
David E. Wiklund0
Mark S. Schumacher0
Date of Patent
January 18, 2005
0Patent Application Number
103870880
Date Filed
March 12, 2003
0Patent Primary Examiner
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US Patent 6843139 Flow instrument with multisensors
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