Liquid flow meter construction

Details Liquid flow meter construction Liquid flow meter construction

1976-07-08

1977-10-25

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Expansible chamber

G01F 1114

Patent

active

040550842

ABSTRACT:
A liquid flow meter comprises a housing having a cylindrical piston chamber and a control chamber. A measuring piston is movable in the piston chamber and a flow control slider is movable in the control chamber and it has respective oppositely directed control surfaces which are made effective, by the flow of liquid between the inlet to the housing and a communication between the measuring piston chamber and the control chamber to move the control slider in a control direction. At each end position of the slider, there is a magnetic holding device for holding the slider until a predetermined control pressure is brought to bear against it to move it in an opposite direction. At each limit of its movement, the piston engages and charges an energy or power storage device operable to accelerate its movement in the opposite direction. The control movements of the slider for regulating the flow between the inlet and the outlet are varied in accordance with the position of the measuring piston.

REFERENCES:
patent: 160767 (1875-03-01), Guthrie
patent: 1470684 (1923-10-01), Cade
patent: 1637850 (1927-08-01), Bassler
patent: 3344667 (1967-10-01), Maltby

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