Fluid flow measuring apparatus

Details Fluid flow measuring apparatus Fluid flow measuring apparatus

1980-02-15

1982-08-10

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

73432R, G01F 142

Patent

active

043431933

ABSTRACT:
Fluid flow measuring apparatus comprising first and second pipe portions, a housing positioned around the pipe portions, a chamber in the housing, an orifice plate, an orifice plate moving device for moving the orifice plate from a first position in which it is located between the pipe portions to a second position in which it is located in the chamber in the housing and for moving the orifice plate from the second position to the first position, and a sleeve seal for sealing the pipe portions when the orifice plate is in the second position, the housing being fabricated of metal in sheet and/or tubular form, the housing having a pivotable lid, and the orifice plate moving device being such that it can be pivotted to an inoperative position for allowing access to the orifice plate.

REFERENCES:
patent: 1931797 (1933-10-01), Howard
patent: 2558247 (1951-06-01), Hamer
patent: 2688987 (1954-09-01), Whalen
patent: 3007340 (1961-11-01), Kraftson
patent: 3105384 (1963-10-01), Hodgemann
patent: 4120313 (1978-10-01), Lewis
patent: 4151745 (1979-05-01), Cordy

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