Fluid flow rate detector and system

Details Fluid flow rate detector and system Fluid flow rate detector and system

1987-02-17

1988-04-19

Bennett, Henry

Automatic temperature and humidity regulation

Closed fluid heaters

Combined thermostat and flow controlled

236 25A, 116204, 116264, F22B 3500

Patent

active

047383950

ABSTRACT:
A fluid flow rate detector for controlling an electric switch in a circuit for regulating fluid flow, the detector including inner and outer portions where fluid is received in the inner portion and flows out into the outer portion through perforations in the inner portion. A magnetic slug is disposed in the inner portion and moves away from a home position in the direction of fluid flow when the flow exceeds a predetermined rate. The slug then is deposited in a zone between the perforations and an end cap of the inner portion so as to permit the flow of fluid to occur at a substantially unimpeded rate. A magnetically activated electric switch responds to the movement of the slug and opens and closes an electric switch in response to the fluid flow rate. The detector can be used in a system dually providing a source of hot water to a hot water sink and to a source of heat.

REFERENCES:
patent: 2963563 (1960-12-01), Patterson
patent: 3601310 (1971-08-01), Hein
patent: 4178907 (1979-12-01), Sweat, Jr.
patent: 4313111 (1982-01-01), Anderson
patent: 4371779 (1983-02-01), Maynard et al.
patent: 4497434 (1985-02-01), Lawless
patent: 4513184 (1985-04-01), Hughes

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