Magnetic flow switch

Details Magnetic flow switch Magnetic flow switch

1982-06-04

1984-12-25

Scott, J. R.

Electricity: circuit makers and breakers

Fluid pressure

Flow-responsive type

H01H 3540

Patent

active

044905920

ABSTRACT:
A magnet is mounted upon a conduit and moves radially thereof between opposite extreme positions in which it actuates a reed switch to an open or closed position. The magnet is urged from a normal position by movement of a skeletal cylinder within the flow passage to a position in which it causes the magnet to shift itself from one to the other of its respective positions. The skeletal cylinder is shifted to its magnet-attracting position by fluid flow (for example, gas, air or steam) through the passage. Means is provided to permit selection of the flow rate required for shifting of the skeletal cylinder to the position in which it acts upon the magnet.

REFERENCES:
patent: 1962795 (1934-06-01), Walker
patent: 2988916 (1961-06-01), Waugh
patent: 3327079 (1967-06-01), Widl
patent: 3446986 (1969-05-01), Cox
patent: 3564175 (1971-02-01), Cooper
patent: 3749864 (1973-07-01), Tice
patent: 3766779 (1973-10-01), Hoffman
patent: 4071725 (1978-01-01), Smith et al.
patent: 4081635 (1978-03-01), Moore
patent: 4085336 (1978-04-01), Miles
patent: 4168413 (1979-09-01), Halpine
patent: 4181835 (1980-01-01), Stadler et al.
patent: 4291761 (1981-09-01), Watson

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