Measuring and testing – Volume or rate of flow – Expansible chamber
Patent
1989-08-09
1991-03-05
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Expansible chamber
73253, G01F 310
Patent
active
049968882
ABSTRACT:
A fluid volumetric flowmeter has a wall plate forming a chamber and a fluid inlet, and a fluid outlet. Two rotors positioned within the chamber have intermeshing lobes and valleys for turning in the chamber as fluid flows from the inlet through the chamber to the outlet. At least one of the rotors has a radial recess for receiving a magnet. A shaft mount is connected to the wall plate. A response shaft is rotationally mounted in the shaft mount, and an indicator rotates with the shaft. A first magnetic coupling is mounted in the rotor recess. A second magnetic coupling is mounted on the shaft within the rotor hub and within the first magnetic coupling for rotating the second magnetic coupling, the shaft, and the indicator in response to rotation of the rotors. First paired coin-shaped magnets are aligned on magnetic axes extending diametrically through the rotor axis. Second grouped coin-shaped magnets are aligned on the single magnetic axis within the rotor hub.
REFERENCES:
patent: 294026 (1984-02-01), Fitts
patent: 3069907 (1962-12-01), Eddy
patent: 3255630 (1966-06-01), Karlby et al.
patent: 3342071 (1967-09-01), Meyers
patent: 3388595 (1968-06-01), Last
patent: 3413851 (1968-12-01), Curtiss
patent: 3457835 (1969-07-01), Sufold
patent: 3685353 (1972-08-01), Gester
patent: 3695106 (1972-10-01), Geisow
patent: 3707872 (1973-01-01), Masson
patent: 3710623 (1973-01-01), Boyd et al.
patent: 3733910 (1973-05-01), Evans
patent: 3811323 (1974-05-01), Swanson
patent: 3858448 (1975-01-01), Evans et al.
patent: 4023410 (1977-05-01), Althaus
patent: 4210410 (1980-09-01), Ohtani
patent: 4295369 (1981-10-01), Wendelboe
patent: 4329130 (1982-05-01), Nagata
patent: 4345480 (1982-08-01), Basham
patent: 4409829 (1984-05-01), Weber
patent: 4451207 (1984-05-01), Hoffman
patent: 4461174 (1984-07-01), Han
patent: 4579008 (1986-04-01), Bohm
patent: 4641522 (1987-02-01), LoPresti
Foran, Jr. Charles D.
LoPresti William J.
Creighton Wray James
Flowdata, Inc.
Goldstein Herbert
LandOfFree
Fluid flowmeter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid flowmeter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid flowmeter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-490302