Baths – closets – sinks – and spittoons – Flush closet – Manual selection of the amount of flush
Reexamination Certificate
1999-11-22
2001-07-24
Huson, Gregory L. (Department: 3751)
Baths, closets, sinks, and spittoons
Flush closet
Manual selection of the amount of flush
C004S324000, C004S394000, C004S403000
Reexamination Certificate
active
06263520
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a water discharging system for a toilet. More particularly, it relates to a water control system for a toilet that can selectively control a volume of water that is discharged from the toilet's water tank.
2. Discussion of Related Art
A common-type toilet has a water tank attached to the toilet body's rear and containing a given amount of water to wash away the body's waste matter by means of a flow of the water. In this common-type toilet's water discharging system that forces the water held in the water tank into the toilet bowl, an opening/closing member, used for opening or closing a drain communicating with the water tank, is directly connected to an inner rear end of an operating lever that is provided to the outside of the water tank. As the opening/closing member is opened by manipulating the operating lever, the water held in the water tank is discharged, and the opening/closing member is then closed to receive and hold a given amount of water. However, this water discharging system is designed to discharge all the water contained in the water tank regardless of a kind of the body's waste matter, and uneconomically consumes the same volume of the water when getting rid of urine or feces.
In order to solve this problem, a two-stage drain valve was disclosed in Korea Utility Model Registration Application No. 91-23211, and granted (Utility Model Publication No. 95-6162).
As shown in
FIGS. 1
to
4
b
, this conventional valve is designed to control a volume of water that is held in a water tank W by its selective two-stage control system. The valve includes a drain pipe
10
with a guide bar
12
provided to a drain
11
's upper section, and an annular packing
13
mounted on an outer surface of drain
11
's upper section, protruding outward; a lower opening/closing member
20
with a cover
22
integrally connected to a cylindrical body
21
's lower section under guide bar
12
, opened downward, and having a bottom closely contacting packing
13
's upper surface, an annular packing
23
mounted on an outer surface of body
21
's upper section, protruding outward, and an elevating guide stand
24
provided to cover
22
's upper section extending upward and having a guide rectangular hole
25
in its middle; and an upper opening/closing member
30
with a cover
32
integrally connected to a cylindrical body
31
's lower section over lower opening/closing member
20
, opened downward, and having a bottom closely contacting packing
23
's upper surface, guide pins
33
inserted in guide rectangular hole
25
of stand
24
at both sides of cover
32
's lower section, and a connector
34
projectingly formed on cover
32
's one side to be connected with a line L.
A device for operating such a two-stage drain valve for a toilet was disclosed in Korea Utility Model Registration Application No. 95-24958 and granted (Utility Model Registration No. 127590).
This device
40
includes an operating lever
41
having a handle
411
at one side, a fixing hole
412
formed on its inner middle, and a stopper
413
provided in parallel to the middle of its rear; a support member
42
having a catch groove
421
formed by a given angle on one side of its front surface to limit the rotation of operating lever
41
, and a bolt
422
with an opened center; an interval maintaining member
47
joined to support member
42
's rear and inserted to a water tank W's through hole; a prop member
43
having a receiving hole
431
to be fitted in bolt
422
of support member
42
, a support piece
432
bent to the rear at right angles, and a stopping piece
433
laterally extending under support piece
432
; and a check nut
44
screwing onto bolt
422
of support member
42
with prop member
43
interposed.
Device
40
also includes a rotary member
45
having a rotary shaft
452
with a hook
451
formed on one end and tightly fitted in operating lever
41
's fixing hole
412
, a pair of rotation guide bosses
453
each formed on both side walls of the other end bent at right angles, and a jaw
454
formed at its lower section; and an operating member
46
having a pair of connectors
461
formed on one end to be removably connected to rotation guide bosses
453
, a support jaw
462
provided to the lower part of connectors
461
to mate with rotary member
45
's jaw
454
, and a connection hole
463
provided to its rear end.
This device
40
is assembled in order that each front end of operating lever
41
and support member
42
is positioned outside of water tank W, and prop member
43
, rotary member
45
, and operating member
46
are placed in water tank W, and connection hole
463
of operating member
46
is connected with upper opening/closing member
30
of the two-stage drain valve via line L.
The operation of device
40
is now fully described.
When washing away the body's waste matter such as urine, requiring a small amount of water, referring to
FIG. 4
a
, as a user turns handle
411
of operating lever
41
clockwise to turn rotary member
45
provided to operating lever
41
downward, the lower section of operating member
46
's front end, connected to rotation guide bosses
453
of rotary member
45
, is caught on prop member
43
's support piece
432
and rotates upward on rotation guide bosses
453
, thus drawing line L connected to operating member
46
's connection hole
463
. At this point, operating lever
41
's stopper
413
is kept in catch groove
421
's upper portion, and simultaneously with this, rotary member
45
moved down is caught in prop member
43
's stopping piece
433
at its lower section and does not turn any more, thereby moving up only upper opening/closing member
30
of the two-stage drain valve connected with line L.
As upper opening/closing member
30
is vertically guided and moved up, cover
32
's bottom, closely contacting the upper surface of lower opening/closing member
20
's packing
23
, is moved upward to open lower opening/closing member
30
's central upper part, and the water held in water tank W is discharged to the toilet bowl through lower opening/closing member
20
's middle part and drain
11
.
When the level of the discharged water is the same as lower opening/closing member
20
's upper surface, upper opening/closing member
30
is moved down, and as the bottom of its cover
32
closely contacts packing
23
of lower opening/closing member
20
, the draining stops. Upper member
30
, moved up in draining a small mount of water, is operated along guide rectangular hole
25
of elevating guide stand
24
in a range of hole
25
's height, thereby not interfering with lower member
20
.
In case of getting rid of the body's waste matter such as feces by means of a large volume of water, once a user turns handle
411
of operating lever
41
counterclockwise as depicted in
FIG. 4
b
, rotary member
45
of operating lever
41
is turned upward to make stopper
413
of operating lever
41
be kept in catch groove
421
's lower portion, and simultaneously with this, rotary member
45
stops rotating. Operating member
46
connected to rotary member
45
is moved in the same direction as rotary member
45
while jaw
454
, formed at the other end of rotary member
45
, is kept in the bottom of support jaw
462
and maintains the level. As upper opening/closing member
30
of the two-stage drain valve connected to line L is vertically guided and moved up, cover
32
's bottom closely contacting packing
23
is moved upward to open the lower opening/closing member's upper part, and guide pins
33
are moved up catching elevating guide stand
24
's guide rectangular hole
25
. As guide pins
33
are moved up in this manner, lower opening/closing member
20
, integrally formed with elevating guide stand
24
, is vertically elevated, and moves up cover
22
closely contacting pa
Huson Gregory L.
Jacobson & Holman PLLC
Prunner Kathleen J.
Shin Woo Watos Co., Ltd.
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