Flow detector

Details Flow detector Flow detector

1989-06-06

1991-03-26

Rivell, John

Fluid handling

With means for separating solid material from the fluid

Planar strainer normal to flow path

137554, 3242072, 340606, E03B 707, F16K 3700

Patent

active

050020900

ABSTRACT:
A flow detector according to the present invention is arranged in a fluid piping circuit, or at an inlet or an outlet of the fluid piping circuit and has a fluid inlet and a fluid outlet, and further comprises a piston having a magnetic member as a part thereof and reciprocated by pressure difference of the fluid between the fluid inlet and the fluid outlet, a fixed magnetic member positioned at a predetermined distance from the piston, and a detection sensor arranged in a position where the detection sensor is subject to alternate magnetic action from the magnetic member of the piston when the piston is reciprocated at a predetermined stroke, for detecting a flow of the fluid in response to change in the magnetic action.

REFERENCES:
patent: 1967017 (1934-07-01), Bohner
patent: 2896663 (1959-07-01), Mena
patent: 3243692 (1966-03-01), Heissmeier et al.
patent: 4315436 (1982-02-01), McCabe et al.
patent: 4507976 (1985-04-01), Banko
patent: 4590962 (1986-05-01), Tespa
patent: 4737710 (1988-04-01), Van Antwerp et al.
patent: 4777979 (1988-10-01), Twerdochlib
patent: 4793241 (1988-12-01), Mano et al.

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