Baths – closets – sinks – and spittoons – Obstruction remover
Patent
1997-07-18
1998-06-23
Phillips, Charles E.
Baths, closets, sinks, and spittoons
Obstruction remover
E03D 900
Patent
active
057687196
ABSTRACT:
A toilet seat includes a substantially rigid lid coupled to a pliant top. The seat seals against the rim of the standard toilet bowl and forms a pressure-adjustable cavity with the bowl and the surface of the water. Once sealed, the seat is pumped to inject air into the cavity, thereby increasing the pressure in the cavity to cause a flush operation. The lid and top each have one way pressure valves permitting air to flow into the cavity as the top is pumped. In another embodiment, the toilet has a standard toilet seat and is connected to a vacuum source via a selectively operable valve. The valve is selectively operable between an open state and a closed state, the open state creating a fluid communication path between the vacuum source and the void volume, the closed state providing a substantially airtight seal between the void volume and the vacuum source. A flapper controls the fluid communication between the void volume and the sewer drain, and is operable between a first state, wherein the flapper is closed to provide a substantially airtight seal between the void volume and the sewer drain, and a second state, wherein the flapper is open and the void volume is in fluid communication with the sewer drain. In operation, the flushable water is sucked into the void volume when the valve is in the open state and the flapper valve is in the first state, and the flushable water within the void volume passes into the sewer drain when the valve is in the closed state and the flapper valve is in the second state.
REFERENCES:
patent: 271357 (1883-01-01), Pike
patent: 716090 (1902-12-01), Nyberg
patent: 747089 (1903-12-01), Schalt
Phillips Charles E.
Vock Curtis A.
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