Integrated domestic utility system

Details Integrated domestic utility system Integrated domestic utility system

2011-03-29

2011-03-29

Phillips, Charles (Department: 3751)

Baths, closets, sinks, and spittoons

Flush closet or urinal and wash receptacle

Wash receptacle water empties into toilet facility

Reexamination Certificate

active

07913331

ABSTRACT:
An integrated domestic utility system is used to recycle grey water in a domestic house as a means to divert treated potable water away from non-potable uses, and in particular, toilet flushing. The system comprises a rainwater tank for storing rainwater collected from a roof top and a grey water tank to store grey water collected from a shower or bathtub. The rainwater is used to augment the grey water supply through a self regulating valve. Domestic water can also be used to replenish the grey water tank. A demand amount of grey water is pumped from the storage tank to at least one toilet tank. The system is controlled by a controller using pressure sensors and temperature sensors. The invention may include a solar heating circuit coupled to a domestic water heater. In one example of the invention, the system stores grey water in a bathtub and supplies it to toilet tank.

REFERENCES:
patent: 4197597 (1980-04-01), Toms
patent: 4349436 (1982-09-01), Kaump
patent: 4655244 (1987-04-01), Park
patent: 5106493 (1992-04-01), McIntosh
patent: 5251346 (1993-10-01), Donati
patent: 5301745 (1994-04-01), Seib et al.
patent: 6314590 (2001-11-01), Lee
patent: 2008/0141455 (2008-06-01), Harrison

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