Fluid flow meter with improved sealing means

Details Fluid flow meter with improved sealing means Fluid flow meter with improved sealing means

1980-03-24

1982-08-31

Levy, Stuart S.

Measuring and testing

Volume or rate of flow

By measuring thrust or drag forces

116275, G01F 128

Patent

active

043466079

ABSTRACT:
A flow meter is provided having a housing with inlet and outlet ports respectively adapted to be connected with a source of fluid pressure and a fluid user. A semicircular vane member mounted within the housing is movable in response to a change in the flow rate between the inlet and outlet ports to rotate a shaft to which the vane member is attached. The shaft, in turn, extends externally of the housing and is operatively coupled to an indicator for providing an external visual indication of the rate of fluid flow through the flow meter. The improvement, however, comprises a unitary spring seal having a first portion rigidly secured to the housing and a second portion which extends between the housing and the vane shaft. This second portion extends along the shaft within the housing and is resiliently urged against the outer peripheral surface of the shaft in order to prevent fluid leakage between the vane shaft and the housing.

REFERENCES:
patent: 3282102 (1966-11-01), Rosaen
patent: 3685354 (1972-08-01), Rosaen
patent: 3776037 (1973-12-01), Rosaen

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