Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1987-10-06
1989-12-19
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
138 46, G05D 701, F16K 1724
Patent
active
048876372
ABSTRACT:
A pressure compensating flow control device for conserving water usage by controlling the water flow rate from faucets located in homes and commercial properties. The device is an inline flow control apparatus which controls the flow of water going to sinks, showers, and lavatories in a manner to conserve water usage and is therefore especially energy efficient when used to control the flow of heated water. The control device is pressure compensating in a manner which tends to provide a constant volumetric flow rate as the upstream pressure fluctuates, and as the faucet is progressively opened. The control device includes a housing within which two mutually reciprocating parts are biased apart by a spring means so that as the upstream pressure increases, the two parts move towards one another, thereby compressing the spring means therebetween, and increasing the friction to flow therethrough. When the faucet is progressively closed, the upstream pressure is reduced, the two parts of the device move apart in response to dissipation of the stored energy within the spring means, thereby increasing the friction to flow therethrough. This action enables the control device to modulate the flow through the individual water faucet outlets to provide a constant water flow rate as the faucet is moved from a slightly opened to a fully opened position.
REFERENCES:
patent: 1050763 (1913-01-01), Cooper
patent: 2584418 (1952-02-01), Branson
patent: 3114388 (1963-12-01), Hoen
patent: 3292656 (1966-12-01), Armstrong
patent: 3697002 (1972-10-01), Parkison
patent: 3752183 (1973-08-01), Griswold
Bates Marcus L.
Hepperle Stephen M.
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