Orifice plate for metering the flow of a medium

Details Orifice plate for metering the flow of a medium Orifice plate for metering the flow of a medium

1997-09-30

2000-04-25

Patel, Harshad

Measuring and testing

Volume or rate of flow

Using differential pressure

251205, G01F 142, F16K 2500

Patent

active

060530561

ABSTRACT:
Semi-spherical supports are used in the piercing of small, consistently sized holes in a soft metal. In particular, an orifice plate can be fabricated with small, consistently sized flow apertures to regulate flow in a gas flow regulating device. By using semi-spherical supports, the need for hand-punching and real-time flow calibration can be avoided and automated machinery with a tapered piercing tool can be used to fabricate orifice plates.

REFERENCES:
patent: 4445808 (1984-05-01), Arya
patent: 4572477 (1986-02-01), Phlipot et al.
patent: 4909476 (1990-03-01), Messick
patent: 5036879 (1991-08-01), Ponci
patent: 5593136 (1997-01-01), Reed et al.
patent: 5614679 (1997-03-01), Johnson
patent: 5640997 (1997-06-01), Reed et al.
Transcript of Preliminary Injunction Hearing, Cause No. IP97-1367-C H/G (S.D. Ind. Mar. 18, 1998), pps. 1-4, 41-48, 133-136 (esp. pps. 134, 1. 23-135, 1. 11: Testimony of Gilbert Davidson, Chairman of Flotec, Inc.).

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