Measuring and testing – Volume or rate of flow – Expansible chamber
Patent
1998-04-28
1999-10-26
Patel, Harshad
Measuring and testing
Volume or rate of flow
Expansible chamber
4182064, 417540, G01F 310, F01C 118, F04B 1100
Patent
active
059707917
ABSTRACT:
An improved rotary fluid meter is provided having expansion chambers for conditioning pressure pulses that may occur in the flow of fluids. The pressure pulses, which inhibit the meter's ability to accurately measure, may originate from within a metering device or from without it. The pressure pulses may be generated upstream of the meter. Fluid flows into the meter through a fluid flow conduit. At least one flow conditioning chamber which is of such a volume and a shape as to enable it to substantially dampen pressure pulses so as to improve the accuracy of the rotary meter is provided along the fluid flow conduit.
REFERENCES:
patent: 2355494 (1944-08-01), Yingling
patent: 2531726 (1950-11-01), Durdin
patent: 3810723 (1974-05-01), Johnson
patent: 4725211 (1988-02-01), Gray
patent: 4823758 (1989-04-01), Tamura et al.
patent: 5050094 (1991-09-01), Kitano
patent: 5207088 (1993-05-01), Geery
Barczynski John J.
Johnson Steven L.
American Meter Company
Goebel, Jr. Edward W.
Patel Harshad
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