Apparatus for recovering and saving chilled water in hot water l

Details Apparatus for recovering and saving chilled water in hot water l Apparatus for recovering and saving chilled water in hot water l

1996-04-18

1997-02-18

Chambers, A. Michael

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137337, 137569, 417292, 126362, F24H 100

Patent

active

056033443

ABSTRACT:
A water saving device for use with domestic hot water systems of the noncirculating storage tank heater type uses a hydraulic motor to drive a water pump to pump water from the hot water pipe to a cold water pipe. Pumping begins when a hot water tap connected to the device is turned on and the water in the hot water pipe is cold. Pumping continues until a temperature sensing element senses that hot water has reached the water saving device and actuates a valve. When hot water is present at the device, the valve permits the hot water to pass directly to the tap instead of driving the hydraulic motor.

REFERENCES:
patent: 2935078 (1960-05-01), Greenland et al.
patent: 4141222 (1979-02-01), Ritchie
patent: 4750472 (1988-06-01), Fazekas
patent: 4893749 (1990-01-01), Schichl
patent: 4945942 (1990-08-01), Lund
patent: 5009572 (1991-04-01), Imhoff et al.
patent: 5105846 (1992-04-01), Britt
patent: 5277219 (1994-01-01), Lund

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