Pipes and tubular conduits – With flow regulators and/or baffles – Restrictors
Patent
1992-08-05
1994-04-26
Hornsby, Harvey C.
Pipes and tubular conduits
With flow regulators and/or baffles
Restrictors
138 40, 138 45, F15D 102
Patent
active
053057961
ABSTRACT:
An orifice fitting with an orifice plate centered in the flow passage of an orifice fitting via direct contact between a cradle and the orifice plate. The orifice plate is centered via the use of an orifice plate carrier having two channels on its downstream side and two slots located in the bottom portion of the seat, which is located on the plate carrier's upstream side. The plate fits into the seat and a bottom portion of the plate's peripheral edge protrudes through the slots. A cradle having locating surfaces fits through the channels in the orifice plate carrier and firmly holds the orifice plate against the orifice plate carrier. The cradle can be positioned and then secured in place by two adjustable set screws and a stem piece of the cradle. Once the orifice plate has been centered via the positioning of the cradle, the stem piece of the cradle and the set screws can be welded into the body of the orifice fitting. Alternatively, the cradle may be formed from weld metal added to the body of the orifice fitting and machined to define the cradle, or can be machined from a portion of the cast metal cradle. The method of the present invention involves the use of a cradle having locating surfaces to center an orifice plate in an orifice fitting by inserting the locating surfaces of the cradle in channels in an orifice plate carrier so that the locating surfaces contact and hold a bottom portion of the peripheral edge of the orifice plate and then positioning the cradle so as to center the plate.
REFERENCES:
patent: 3817287 (1974-06-01), Aitken
patent: 4014366 (1977-03-01), Critendon
patent: 4191216 (1980-03-01), Connolly
patent: 4286364 (1981-09-01), Connolly
patent: 4422339 (1983-12-01), Gall et al.
patent: 4444224 (1984-04-01), Geisow
patent: 4478251 (1984-10-01), Sanchez et al.
patent: 4503594 (1985-03-01), Gall et al.
patent: 4593915 (1986-06-01), Seger et al.
patent: 4633911 (1987-01-01), Lohn
patent: 4750524 (1988-06-01), Sekoguchi et al.
patent: 5042531 (1991-08-01), Foster et al.
patent: 5050842 (1991-09-01), Foster et al.
patent: 5085250 (1992-02-01), Kendrick
patent: 5094272 (1992-03-01), Foster et al.
Superior Measurement Equipment-"Superior Dual Chamber Orifice Fitting," 1990, all.
Daniel Industries, Inc.-Senior.RTM. Orifice Fitting Technical Manual, 1991, all.
Perry Equipment Corp.-"Peco Orifice Fittings Comply with API 14.3", Jan. 1992, all.
Perry Equipment Corp.-"Measuremaster.RTM. Dual Chamber Orifice Fittings," Feb. 1988, all.
Daniel Industries, Inc.-"Senior Orifice Fittings," pp. 1-6, 26.
American Petroleum Institute-"Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids", p. 10.
American Petroleum Institute-Manual of Petroleum Measurement Standards, Chapter 14-Natural Gas Fluids Measurement, Feb. 1991, pp. 15-17.
Perry Equipment Corp. (Peco)-"The Reps Reporter," Apr. 1992, p. 1.
Michael B. Johnson-"Effect of 1991 Revision of ANSI 2530 on Orifice Meter Run," pp. 174-176.
Daniel Flow Products, Inc.-"API-AGA 14.3 Update," p. 1.
Daniel Flow Products, Inc.-"What do you need to know to be sure your orifice fitting `meets 14.3` without added uncertainty or beta limitations?", p. 10.
Daniel Flow Products, Inc.-"News about Daniel Orifice Fittings" brochure, pp. 1-2.
Loy Upp-"EGA Report #3 Changes-New Specifications for Hardware," Apr. 14-15, 1992, pp. 1-8.
Brinson Patrick F.
G-H Flow Automation, Inc.
Hornsby Harvey C.
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