Measuring and testing – Volume or rate of flow – Using differential pressure
Reexamination Certificate
2007-11-27
2007-11-27
Thompson, Jewel (Department: 2855)
Measuring and testing
Volume or rate of flow
Using differential pressure
Reexamination Certificate
active
11487759
ABSTRACT:
A venturi type of primary flow element comprising a tubular body defining a flow path having open ends and walls and including in series, a converging section, a cylindrical throat section, and a diverging section, where the bottom walls of each of said sections are in alignment and present a smooth unangled surface to flowing fluid therein.
REFERENCES:
patent: 6463810 (2002-10-01), Liu
patent: 6612187 (2003-09-01), Lund
patent: 2002/0178837 (2002-12-01), Brandt
Barrett January D.
Dieterich Standard, Inc.
Hanes Richard W.
Hanes & Schutz, LLC
Thompson Jewel
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