Viscosity-compensating flow switch

Details Viscosity-compensating flow switch Viscosity-compensating flow switch

1978-02-01

1979-09-04

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Piston

340611, 138 44, 73211, H01H 3538

Patent

active

041669363

ABSTRACT:
The invention contemplates an improved magnetically operative flow switch wherein the viscosity sensitivity of a flow-responsive movable metering member is materially reduced, as compared with past constructions. The improvement results from so devising a flow-metering passage through the movable member that such flow is taken only from the center and not from the wall of the inlet-flow passage in which the metering member is movable.

REFERENCES:
patent: 2703494 (1955-03-01), Carney
patent: 2927462 (1960-03-01), Li
patent: 2984105 (1961-05-01), Nagel
patent: 3421124 (1969-01-01), Kidd
patent: 3446986 (1969-05-01), Cox
patent: 3551620 (1970-12-01), Hoover
patent: 3632923 (1972-01-01), Paine

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