Flow switch

Details Flow switch Flow switch

1991-10-11

1992-11-10

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Flow-responsive type

7386147, 1375121, 137554, 200 82E, 340611, H01H 3538

Patent

active

051626241

ABSTRACT:
A fluid flow rate responsive signal generator includes moveable members which, in part, define a pair of paths for the flow of fluid. A first of the moveable members is a shuttle which supports a magnetic field generator, the shuttle being displaced toward a proximity switch in response to fluid flow. The second moveable member functions as a valve which, when in the open condition, allows flow to bypass the flow path in which the shuttle is disposed. The bypass flow path control valve member will be automatically positioned as a function of the dynamic flow conditions and may be either normally closed or prepositioned to define a minimum bypass flow path area.

REFERENCES:
patent: 3327079 (1967-06-01), Widl
patent: 4055641 (1991-10-01), Richards
patent: 4166936 (1979-09-01), Tice
patent: 4365125 (1982-12-01), Keller
patent: 4377090 (1983-03-01), Seulen
patent: 4499347 (1985-02-01), Richards
patent: 4533802 (1985-08-01), Spalding

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