Baths – closets – sinks – and spittoons – Flush closet – Manual selection of the amount of flush
Patent
1994-11-21
1996-06-11
Fetsuga, Robert M.
Baths, closets, sinks, and spittoons
Flush closet
Manual selection of the amount of flush
4388, 4393, 4394, 4404, E03D 114, E03D 135
Patent
active
055242979
ABSTRACT:
The Two-Level Flush Valve retrofits into standard toilet tanks replacing the flush valve and pull cord. Depressing the toilet handle through the usual first resistance lifts a non-buoyant valve (20) open. It is held open by an upper float (28) fastened onto a pull cord (24). When water lowers to the level of upper float (28) the float drops, allowing the valve to close. This accomplishes a short-duration flush that clears liquid waste from the toilet bowl and saves about a half tank of water. Depressing the handle through a second resistance causes valve (20) to pull a carriage (32) up and out of a latch (52). Lower floats (40) on carriage (32) hold valve (20) open until the tank is almost empty. This accomplishes a full flush that ensures that solid waste is flushed out without leaving dirty water in the toilet bowl. A valve delayer (62) holds valve (20) slightly open for a few seconds to allow complete refilling of the toilet bowl. Valve delayer (62) consist of water chamber ( 68) that compresses from the weight of the valve (20). A small expulsion hole (76) in chamber (68) limits the rate that water exits and thus limits the speed of the closing of valve (20). The present invention is completely adjustable. Alternate variations include several types of simple, dependable latches (52); a one-piece valve and carriage; and dual flush handles.
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