Baths – closets – sinks – and spittoons – Flush closet – Tank only
Patent
1988-10-31
1990-02-20
Phillips, Charles E.
Baths, closets, sinks, and spittoons
Flush closet
Tank only
137400, E03D 100, E03D 122
Patent
active
049013777
ABSTRACT:
The toilet tank automatic water flow shut off for stuck or defective flow valves and water saver device depicted herein consists of a simple mechanism for installation in a water tank of a conventional water flush toilet, underneath the ball float, to provide time delay action, for water shut off. To provide time delay action, so the device will not operate during normal flushing operations, a small hole is provided toward the bottom of a small water tank with an open top, that is located on the top of a sealed spring bellows assembly, that is restricted in vertical movement by the weight of the water in the small water tank. An exit for the air within the bellows assembly is provided by a small tube connected to the bottom of the air pocket within the bellows at one end, and extending upwardly to the air pocket above the top level of water in the toilet water tank. When the toilet water tank is essentially empty for an extended period of time, as when the flush valve is stuck open or becomes ruptured, the water drains out of a small orifice toward the bottom of the small water tank and the spring bellows assembly then exerts upward pressure to force the small water tank upward against the ball float, forcing the ball float upward and shutting off the water flow into the toilet water tank. When the toilet tank flush valve is fixed or reset to the closed position, the automatic flow shut off mechanism is re-activated by manually depressing the ball float until the toilet water tank is full. The device protects against excessive water loss from stuck toilet valves as well as saving water at each normal flush by the water retained in the small tank. The alternate embodyment employs the same basic concepts with different components and arrangement.
REFERENCES:
patent: 2841169 (1958-07-01), Martin et al.
patent: 3151338 (1964-10-01), Nunnery
patent: 3574867 (1971-04-01), Biniores
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