Energy conservation and anti-scald/burn single handle valve cons

Details Energy conservation and anti-scald/burn single handle valve cons Energy conservation and anti-scald/burn single handle valve cons

1991-10-16

1992-08-25

Tapolcai, William E.

Automatic temperature and humidity regulation

Thermostatic

In fluid controlled

13761418, 236101D, G05D 2302

Patent

active

051411539

ABSTRACT:
A water temperature sensing/flow control mixing valve has a valve body with hot and cold water inlets and at least one outlet. A mixing valve member is positioned within the valve body and controls the proportion of hot and cold water that flows from the outlet. A water flow restrictor is positioned within the valve body and movable from a normal flow position in which outlet flow is unobstructed to a position in which the restrictor partially closes the outlet to limit flow therefrom. There is a shaped memory metal actuator positioned within the valve body to move the restrictor from the normal flow position to the flow limiting position when the water within the valve body exceeds a predetermined temperature.

REFERENCES:
patent: 1814512 (1931-07-01), Hetherington
patent: 2228626 (1941-01-01), Hetherington
patent: 2534378 (1950-12-01), Schlaich
patent: 4227646 (1980-10-01), Hart et al.
patent: 4778104 (1988-10-01), Fisher
patent: 4782853 (1988-11-01), Moen
patent: 4854499 (1989-08-01), Neuman

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