Valves and valve actuation – With selective flow regulation
Reexamination Certificate
2003-06-06
2004-09-28
Bastianelli, John (Department: 3754)
Valves and valve actuation
With selective flow regulation
C251S284000, C251S297000, C137S625170, C137S801000
Reexamination Certificate
active
06796544
ABSTRACT:
BACKGROUND OF THE INVENTION
A valve mount for a water saving core shaft of a single-handled faucet has a valve embodiment housed in a receiving cavity of a faucet body with the upper section provided with internal threads to be in locking engagement with a locking cap. In the valve chamber of the valve embodiment are housed sequentially a rotary member, a switch stick, an regulation seat and a discharge control valve. The inner periphery of the valve chamber is provided with a plurality of retaining recesses corresponding to the spring plates defined on the rear cavities of the rotary member and the engaging teeth of the regulation seat are in engagement with the spring plates on the right and left recess of the rotary member. On the upper section of the rotary seat are provided with outer teeth which are engaged with the inner teeth of a stop member. The upper end of the switching stick is secured a faucet handle whereby the handle of such a faucet can be move up and also to the right or left in a step-like manner to precisely control the minimum outlet of cold and hot water without worrying the sudden massive discharge of water due to an improper actuation of the handle, resulting in the effective use of water.
Referring to
FIG. 1
, the prior art is perspectively shown of its exploded components. The faucet
10
is equipped with a faucet body
11
having a housing chamber
111
in which a valve embodiment
12
is received. In the valve chamber
121
of the valve embodiment
12
are sequentially placed a regulating seat
13
and a water outlet control valve
14
that are operated in cooperation to control the opening and closing of the supply of the cold and hot water. A limiting member
15
having internal retaining recesses
151
is in engagement with the regulating seat
131
having outer retaining recesses
13
so as to permit the two components to be rotated together. A locking ring
16
is in locking engagement with the valve embodiment
12
by way of the inner threads
112
so as to make the valve embodiment
12
, the regulating seat
13
, the water outlet control valve
14
and the limiting member
15
confined in the housing chamber
111
. A faucet handle
17
is fixed to the switching control stick
132
of the regulating seat
13
. In operation, as the faucet handle
17
is pried upwardly and placed at the center, the control stick
132
and the water outlet control valve
14
are driven to move accordingly and the amount of water discharge depends on the level of the upward pivot of the faucet handle
17
. As the faucet handle
17
is pried upwardly and pivoted to the right or left, the limiting member
15
in engagement with the regulating seat
13
is made to rotate, causing the water outlet control valve
14
to regulate the discharge of cold and hot water.
Such a prior art has a disadvantage in practical use given as follows.
The faucet
10
controls the discharge of water in a stageless manner, so water is easily discharged in a large amount due to a user prying the faucet handle
17
directly upwardly to its limit. As a result, large amount of water will be instantly wasted if the faucet handle
17
is not able to be carefully operated in one aspect and the water will be easily spattered all around to get the user's clothes wet.
SUMMARY OF THE INVENTION
Therefore, the primary object of the present invention is to provide a valve mount for a water saving core shaft for a single handled faucet wherein the upwardly pivoted faucet handle can cause the control stick to drive a regulation seat to spin forwardly, resulting in the movement of an upper switching valve. The spring plates housed in recesses of on a rotary member will fall into sequential registration with teeth of the regulation seat whereby the stepwise control of water discharge can prevent sudden large amount of water from being discharged with the prying movement of the faucet handle, effecting water saving in operation.
Another object of the present invention is to provide a valve mount for a water saving core shaft for a single handled faucet wherein as the faucet handle is moved to the right or left, a rotary member is rotated accordingly whereby a spring plate confined in a recess of the rotary member can be in stepwise registration with snap cavities in the valve embodiment, resulting in the precise control of discharge of cold and hot water in a minimum amount.
REFERENCES:
patent: 5522429 (1996-06-01), Bechte et al.
patent: 5538041 (1996-07-01), G anzle
patent: 5899230 (1999-05-01), Orlandi
patent: 6170523 (2001-01-01), Chang
Bastianelli John
Kuching International Ltd.
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