Fluid handling – Liquid level responsive or maintaining systems – By float controlled valve
Reexamination Certificate
2002-05-20
2004-01-20
Fetsuga, Robert M. (Department: 3751)
Fluid handling
Liquid level responsive or maintaining systems
By float controlled valve
Reexamination Certificate
active
06679287
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to level adjusters, and particularly to a level adjuster of a water supply of a water box serves for adjusting the amount of water in a water box conveniently and easily. The amount of water in the water box can be precisely controlled and the operation is easy without any other auxiliary tool. No problem of element fatigue and change of water level.
BACKGROUND OF THE INVENTION
Stool has become a necessary device for the currently life, but generally, the water supplied to the stool is unadjustable and a large amount of water is supplied for each time the stool is used so that water is wasted. Tools are necessary for adjusting water supplied to the stool, however, this is inconvenient, and thus the user can not determine the water to flush a stool each time the stool is used.
A prior art water supply is illustrated in FIG.
1
. The water supply has an inner water injecting tube
52
and an outer water injecting tube
51
and a pontoon
53
. An outer side of the pontoon
53
is pivotally connected to a U shape elastomer
54
. An upper and a lower section of the U shape elastomer
54
are installed with an upper positioning hole
541
and a lower positioning hole
542
. A supporting rod
56
capable of being connected to a press
55
passes through an upper positioning hole
541
and a lower positioning hole
542
. By the expanding elastic force of the U shape elastomer
54
, the edges of the positioning holes
541
and
542
can be buckled to the supporting rod
56
. When the U shape elastomer
54
are pressed at two ends thereof, the edges of the upper positioning hole
541
and the lower positioning hole
542
will disengage with the supporting rod
56
(the diameter of the upper and lower positioning holes
541
and
542
are slightly larger than the diameter of the supporting rod
56
). The user can adjust the pontoon
53
to a desired level and the U shape elastomer
54
can be positioned on the supporting rod
56
. Although this structure can adjust the water amount rapidly, but the advantage is that the edges of the upper and lower positioning holes
541
and
542
are obliquely buckled to the supporting rod
56
. It is possible that the rod slides due to the buoyance of the pontoon
15
. Especially when the U shape elastomer has elastic fatigue. Thereby, the water level to be controlled has a shift from the predict level, and the water stored is wasted due to change of level.
SUMMARY OF THE INVENTION
To achieve above objects, the present invention provides a level adjuster of a water supply of a water box comprising a press, a supporting rod, an pressable button, a positioning seat, a pontoon, an inner water injecting tube and an outer water injecting tube of a water injector. The user can press the pressable button to force the elastomer of the positioning seat to reduce backwards, and thereby, the positioning block will retract from the positioning groove of the supporting rod. Therefore, the user can adjust the level of the pontoon. After adjusting to a desire level, the pressable button is released. Then the elastomer of the positioning seat restores to drive the block to be buckled to the positioning groove of the supporting rod. After the level positioning operation is completed, and when it is stated to fill water into a water box, the pontoon will move to a predetermined height due to the buoyance of water, the pontoon will drive the press to press the water stop pin of the water supply. Thereby, by the present invention, the amount of water in the water box can be precisely controlled and the operation is easy without any other auxiliary tool. No problem of element fatigue and change of water level. The amount of water in the water box can be precisely controlled and the operation is easy without any other auxiliary tool. No problem of element fatigue and change of water level.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
REFERENCES:
patent: 2911000 (1959-11-01), Doyle
patent: 2986155 (1961-05-01), Doyle
patent: 3194258 (1965-07-01), Grant
patent: 6510866 (2003-01-01), Li
Chien Cheun Plastic Co., Ltd.
Fetsuga Robert M.
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