Baths – closets – sinks – and spittoons – Flush closet – Tank only
Reexamination Certificate
2000-04-03
2001-04-24
Young, Lee (Department: 3751)
Baths, closets, sinks, and spittoons
Flush closet
Tank only
Reexamination Certificate
active
06219855
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an improved toilet bowl in combination with a pressurized flush tank. The pressurized tank is made up of a spring, a float piston, a water inlet control valve set, a water discharge control unit and a container lid. The water inlet control valve set includes a valve, a valve cover, a small spring, a control piston, a seal ring, a float base and a control cord. The water discharge control unit has a control handle, a link bar, a seal ring, two link bar fixing seats, a water stopper and a set of discharge fixing ring. When water is discharged, the compressed spring applies a force to the float piston so that the float piston will exert pressure on water which rushes into a toilet bowl as a result.
Referring to
FIG. 1
, a conventional toilet bowl
10
sectionally shown is provided with a plurality of flushing holes
11
defined on the top periphery of the bowl with slant flushing slopes
12
disposed inside thereof A water collection area
13
is disposed at the bottom of the toilet bowl
10
. A downwardly extending water discharge tunnel
14
is disposed at a rear section of the flushing slope
12
and communicates with the same water source of the flushing holes
11
at the top end thereof and is in communication with the water collection area
13
at the bottom end thereof. The front section of the water collection area
13
extends in connection to a goose neck shaped dumping pipe
15
which has a front stop section
16
at the front end thereof and a rear stop section
17
at the rear end thereof. When the water collection area
13
is full of water, foul odor in the dumping pipe
15
can be stopped from entering and a vacuum chamber
18
is defined at the upper space of the dumping pipe
15
.
Referring to
FIG. 2
, it shows the direction of water flow. When water flushes into the toilet bowl, it will be first discharged from the top of the bowl out of the flushing holes
11
and flushes down along the flushing slopes
12
, producing a turbulent whirlpool. At the same time, water flushes down from the water discharge tunnel
14
to permit the whirling water to be discharged out of the dumping pipe
15
. It will produce a siphon state in the vacuum chamber
18
so that waste in the toilet bowl can be sucked out of the same as a result of the siphon state.
There are some disadvantages associated with the prior toilet bowl given as below:
1. The water discharge tunnel
14
has a steep angle, almost a right angle, at the top end thereof, so, water flushing out of an outlet will become weak as a result of vast change of angle of the water flow. Thus, it takes more water to effectively flush waste in a toilet bowl out
2. The water collection area
13
remains less quantity of water in a very short period of time and then a reverse flow will be produced in the water collection area
13
by the water discharge tunnel
14
. As a result, waste or fowl odor in the dumping pipe
15
will be sucked back. It is not hygienic to most people.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a toilet bowl in combination with a pressurized flush tank which is operated without any electrical power to get water pressurized to flush waste and water out of a toilet bowl whereby the flush tank can be reduced in size and water discharged from the tank is economically saved.
Another object of the present invention is to provide an improved toilet bowl in combination with a pressurized flush tank. The toilet bowl of the present invention is provided with a back flushing tunnel which can build up a siphon state on filth waste and water being discharged in a vacuum chamber with a siphon state produced simultaneously so that filth water and waste can be dumped out effectively with less water used.
One further object of the present invention is to provide an improved toilet bowl in combination with a pressurized flush tank. The toilet bowl has a smoother dumping path which has no sharp angles of its structure so that filthy water and waste can be more directly dumped with no whirlpool produced in the water collection area in use. It is more hygienic than a conventional one.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a sectional diagram showing the operation mode of the present invention;
FIG. 2
is another sectional diagram showing the operation mode thereof;
FIG. 3
is a perspective diagram showing the present invention;
FIG. 4
is a perspective diagram showing exploded components of a pressurized flush tank;
FIG. 5
is a sectional diagram showing the pressurized flush tank of the present invention;
FIG. 6
is a sectional diagram of an improved toilet bowl of the present invention;
FIG. 7
is a sectional diagram showing the pressurized tank full of water;
FIG. 8
is a sectional diagram showing the pressurized tank running out of water;
FIG. 9
is a diagram showing water being flushed in the toilet bowl.
REFERENCES:
patent: 1505297 (1924-08-01), Stephenson
patent: 2868493 (1959-01-01), Gray
patent: 2957181 (1960-10-01), Lamping
patent: 4991742 (1991-02-01), Chang
patent: 5005226 (1991-04-01), Basile et al.
patent: 6170715 (2001-01-01), Evans
Bacon & Thomas PLLC
Le Huyen
Walter's Co., Ltd.
Young Lee
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