Grey water toilet and flushing method
AssigneeKohler Co.
InventorsClayton C. Garrels, William C. Kuru, Randy S. Graskamp
Life of this patent
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Abstract
A method of flushing a toilet that includes opening a first valve to introduce a first supply of grey water into a passage to prime a siphon; opening a second valve to introduce a second supply of water into a bowl from a tank, the bowl having an outlet that is in fluid communication with an inlet of the passage; closing the first valve to shut off the first supply of water; evacuating the contents of the bowl through an outlet of the passage by way of the siphon generated by the introduction of the first supply of water and the introduction of the second supply of water; and closing the second valve to shut off the second supply of water.
Claims19
A grey water trapway system for a toilet, the grey water trapway system comprising:
- a trapway passage first end with a connection to a toilet bowl;
- a trapway passage curved portion at a height higher than the connection to the toilet bowl;
- a trapway passage down-leg extending from the trapway passage curved portion in a substantially vertical direction;
- an inlet opening configured to supply grey water to the trapway passage down-leg;
- a trapway passage horizontal portion extending from the trapway passage down-leg to an exit to a drain pipe;
- and
- a dispensing pipe directly connected to the drain pipe and configured to connect the drain pipe and grey water trapway system to a storage tank.
A grey water trapway system for a toilet, the grey water trapway system comprising:
- a trapway passage curved portion;
- a trapway passage down-leg extending from the trapway passage curved portion in a substantially vertical direction;
- an inlet opening configured to supply grey water to the trapway passage down-leg;
- a trapway passage horizontal portion extending from the trapway passage down-leg to an exit to a drain pipe, and
- a dispensing pipe directly connected to the drain pipe and configured to connect the drain pipe and grey water trapway system to a storage tank.
A grey water system configured to be in fluid communication with a trapway of a toilet, the grey water system comprising:
- a collection device configured to capture water from at least one appliance;
- a pump configured to cause the captured water to move from the at least one appliance to a storage tank, wherein the storage tank is connected to the trapway of the toilet;
- a pipe configured to couple to an outlet of the storage tank and couple to a trapway of the toilet, wherein the trapway comprises:
- a trapway passage curved portion;
- a trapway passage down-leg extending from the trapway passage curved portion in a substantially vertical direction;
- and
- a trapway passage horizontal portion extending from the trapway passage down-leg to an exit to a drain pipe;
- and
- a dispensing subsystem directly connected to the drain pipe and configured to connect the drain pipe and the grey water system to direct excess grey water from the storage tank.
Dependencies are inferred from the claim text.