Back-to-back faucet valve structures

Details Back-to-back faucet valve structures Back-to-back faucet valve structures

2002-12-22

2003-11-04

Nguyen, Tuan N. (Department: 3751)

Baths, closets, sinks, and spittoons

Supply outlet for a sink or bath

C004S676000, C004S677000, C137S360000, C137S607000, C137S625410, C137S625210, C137S637300, C137S801000

Reexamination Certificate

active

06640357

ABSTRACT:

RELATED U.S. APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO MICROFICHE APPENDIX
Not applicable.
FIELD OF THE INVENTION
The present invention relates generally to a device for regulating the flow of water from a pipe, and more particularly to two faucet valve structures which are arranged in a back-to-back manner.
BACKGROUND OF THE INVENTION
As shown in
FIGS. 7 and 8
, two faucet valve structures of the prior art are mounted in a back-to-back fashion such that one faucet valve structure is disposed in one side
41
of a wall, and that other faucet valve structure is disposed in an opposite side
42
of the wall. The one faucet valve structure comprises a valve seat
30
, a ceramic valve
33
, and a valve knob
40
, while the other faucet valve structure comprises a valve seat
301
, a ceramic valve
33
, and a valve knob
40
. The valve seats
30
and
301
are provided with a water discharging hole
34
. The water discharging hole
34
, a cold water inlet
35
, and a hot water inlet
36
are arranged in a triangular manner so as to be cooperative with a water discharging hole
37
, a cold water inlet
38
and a hot water inlet
39
of the ceramic valve
33
, as illustrated in FIG.
8
.
As the valve knob
40
is turned clockwise, the cold water is let out first before it is mixed with the hot water so as to avert the incident of hot-water burn. In light of the prior art layout as shown in
FIG. 7
, the cold water is let out first prior to the hot water by the valve seat
30
and the ceramic valve
33
, which are mounted in the one side
41
of the wall. However, in the case of the valve seat
301
and the ceramic valve
33
, which are mounted in the other side
42
of the wall, the hot water is let out first ahead of the cold water. Such a disparity between two sides
41
and
42
of the wall is resulted from the faulty design of the prior art structure.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a water faucet structure free of the deficiency of the prior art structure described above.
In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by a faucet structure comprising a first valve seat, a first ceramic control valve fastened with the first valve seat which is mounted in one side of a wall, a second valve seat and a second ceramic control valve fastened with the second valve seat which is mounted in another side of the wall in a back-to-back manner in relation to the first valve seat. The first ceramic control valve and the second ceramic control valve have a bottom seat which is provided with a cold water inlet, a hot water inlet, and a water outlet. The inlets and the outlets of the first and the second ceramic control valves are arranged in a mirror image pattern, thereby resulting in agreement between the first ceramic control valve and the second ceramic control valve in terms of the discharge order of the cold water and the hot water.
The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.


REFERENCES:
patent: 5368071 (1994-11-01), Hsieh
patent: 5806552 (1998-09-01), Martin, Jr.

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