Flowmeters having rotors with grooved bores and lands

Details Flowmeters having rotors with grooved bores and lands Flowmeters having rotors with grooved bores and lands

1990-06-22

1991-07-02

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Expansible chamber

73261, 418102, 418206, G01F 310

Patent

active

050276530

ABSTRACT:
A flowmeter has meshing rotors mounted on shafts. The bores of the rotors have plural longitudinally extending grooves which flow materials through the grooves and out of the bores to promote long, accurate running of the flowmeters. Radial faces of counterbores and end faces and lands of the rotor are provided with radial extensions of the axially extending grooves to provide flow of the material through the grooves.

REFERENCES:
patent: 2383226 (1945-08-01), Swindle
patent: 2710540 (1955-06-01), Grote
patent: 2775209 (1956-12-01), Albright
patent: 3255630 (1966-06-01), Karlby et al.
patent: 3368799 (1968-02-01), Sluijters
patent: 3457835 (1969-07-01), Siebold
patent: 3707872 (1973-01-01), Masson et al.
patent: 4579008 (1986-04-01), Bohm et al.
patent: 4629405 (1986-12-01), Hidasi et al.
patent: 4648281 (1987-03-01), Morita et al.

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