Baths – closets – sinks – and spittoons – Flush closet – Tank only
Reexamination Certificate
2000-10-19
2001-10-30
Fetsuga, Robert M. (Department: 3751)
Baths, closets, sinks, and spittoons
Flush closet
Tank only
C004S378000, C251S055000
Reexamination Certificate
active
06308348
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a water level controller, and more particularly to a continuous water level controller.
2. Description of Related Art
A conventional toilet bowl has no water level controller mounted in the tank. Every time the flush handle is pushed, all the water in the tank flows into the toilet bowl no matter how much water is needed. Consequently, a lot of water is wasted. In response for the need to conserve water, a two-step water level controller was invented. The conventional two-step water level controller cannot be used conveniently because it must adapt to be used with a water tank. Furthermore, the two-step water level controller cannot be used with a urinal.
The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional toilet bowl.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, a continuous water level controller includes a base member, a sleeve mounted in the base member and a shaft extending through the sleeve. A stopper is attached to one end of the shaft in the base member to close the outlet of the base member. A piston is slidably received in said sleeve and securely attached to the shaft. A spring is mounted around the shaft between the stopper and the piston. The restitution force of the spring and the siphonage between the piston and the sleeve controls the time the outlet is open.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 1220856 (1917-03-01), Keating
patent: 1568346 (1926-01-01), Ryan
patent: 3376013 (1968-04-01), Mallett
patent: 3404703 (1968-10-01), Marx
patent: 3820171 (1974-06-01), Larson
patent: 16047 (1915-05-01), None
Fetsuga Robert M.
Kolisch Hartwell Dickinson & McCormack & Heuser
Liou Wen-Guey
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