Measuring and testing – Volume or rate of flow – Using differential pressure
Reexamination Certificate
2007-05-22
2007-05-22
Thompson, Jewel (Department: 2855)
Measuring and testing
Volume or rate of flow
Using differential pressure
Reexamination Certificate
active
11590983
ABSTRACT:
The present invention relates to the field of correlating a fluid flow rate by strategically measuring a differential pressure of a fluid. Embodiments of the present invention build off a simple concept of applying an aerodynamic device into a flow stream in conjunction with a flow concentrator and measuring fluid pressure at two locations on the aerodynamic device. The flow meter has not moving parts other than used for making tuning adjustments in some embodiments. A central design approach with the present invention is that each component can be adjusted relative to the other. Unlike prior systems that utilize a necked-down region of a fluid passage, the current system increases fluid velocities around a centralized flow element with the aid of an aerodynamic flow horn. Head losses are minimized through this approach. Additionally, having adjustability between the components will allow one to tune the flow meter to a preferred head loss and preferred pressure differentials by allowing the flow element to concentrically translate within its respective flow horn.
REFERENCES:
patent: 4905709 (1990-03-01), Bieganski et al.
patent: 6865957 (2005-03-01), Hughes et al.
patent: 7047822 (2006-05-01), Good et al.
Bowman John Lloyd
Snider Ross Justin
Bowman Industry & Manufacturing LLC
Edwards J. Marc
Thompson Jewel
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