Laminar flow meter or controller

Details Laminar flow meter or controller Laminar flow meter or controller

2007-02-20

2007-02-20

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Using differential pressure

C073S202500, C073S202000

Reexamination Certificate

active

10973667

ABSTRACT:
Volumetric flow meters, volumetric flow controllers, mass flow meters, and mass flow controllers using a transverse laminar flow assembly are described. The flow assembly may be constructed from a plurality of open and/or closed slices or layers stacked upon one another and held together in compression by through bolts or another means. Meter or flow controller accuracy may be aided by use of flow conditioning features preceding an axial bore of the transverse flow assembly including one or more of a deflector, filter and nozzle.

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patent: 5672821 (1997-09-01), Suzuki
patent: 6247495 (2001-06-01), Yamamoto et al.
Bejan, A.,Convection Heat Transfer, 1995 John Wiley & Sons, Inc., pp. 90-107.
Brower, W.,A Primer in Fluid Mechanics, 1999 CRC Press LLC, pp. 130-334.
Dieball, A., “Mass Flow Controllers Enter the Mainstream,”Sensors Magazine, Aug. 1, 2000, pp. 14-21.
Spitzer, D.,Flow Measurement, 1991 Instrument Society of America, Chapter 8, pp. 115-173.
Webster, J.,Mechanical Variables Measurement, 2000 CRC Press LLC, Chapter 9.9, pp. 99-118.

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