Fluent material handling – with receiver or receiver coacting mea – With testing or weighing receiver content
Reexamination Certificate
2001-07-10
2002-10-01
Maust, Timothy L. (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
With testing or weighing receiver content
C141S094000, C141S100000, C141S104000, C141S144000, C222S144500
Reexamination Certificate
active
06457496
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a liquid dispensing and metering system, and more particularly to a liquid dispensing and metering system with a tubeless configuration.
2. Description of the Prior Art
Automatic liquid material metering systems are commonly used in various industry fields, such as chemical industry and textile dying industry, is for measuring the volume of liquid material.
FIG. 1
shows a conventional liquid dispensing and metering system, generally indicated at
10
, mainly including a casing
11
, a supporting platform
12
, and a turntable table
13
. The supporting platform
12
is fixedly mounted on the casing
11
, and the turntable table
13
is positioned in an inner space defined by the casing
11
and the supporting platform
12
.
A number of solution bottles
14
are supported and arranged on the supporting platform
12
, capable of containing selected dye solution or chemical solution therein. Besides, a number of beakers
15
are supported on the turntable table
14
in the manner of circular arrangement.
With reference to
FIG. 2
, the turntable table
13
is supported by a central shaft
131
and can be rotated by a driving motor
132
through the central shaft
131
. An electronic scale
16
is disposed under the turntable table
13
. Each of the solution bottles
14
is respectively connected with a pipe
141
at its top open end to a dispensing head assembly
142
located above the turntable table
13
. The dispensing head assembly
142
includes a plurality of dispensing heads. So, under control of a controller (not shown) of the system, the liquid material contained in the solution bottles
14
may be selectively drawn out of the respective solution bottle through the pipe
141
connected therebetween, and then dripped down into a selected beaker
15
via the dispensing head assembly
142
. The weight of the liquid material received in the beaker
15
may be measured by the electronic scale
16
.
It is noted that the liquid material, especially solution with high viscosity, is easy to be retained in the pipes, causing a deposit. The residual solution in the pipe will cause an improper precision of weight when measuring. Therefore, a measuring error tends to occur after long uses of the metering system. This deposit problem becomes more serious when the solution bottles is used to hold a liquid of high viscosity.
It is thus desirable to have an improved liquid dispensing and metering system to eliminate the problems discussed above.
SUMMARY OF THE INVENTION
Accordingly, a primary object of the present invention is to provide a liquid dispensing and metering system with a tubeless configuration. The liquid dispensing and metering system includes a turntable table supported and rotated by a liftable supporting mechanism. A plurality of solution bottles positioned on the turntable table, each of which being mounted with an electromagnetic valve. At least one actuating unit is used to actuate the electromagnetic valves of the solution bottles to allow the liquid contained in the solution bottles to be flowed out via the electromagnetic valves. An electronic scale is arranged under the turntable table, corresponding to at least one electromagnetic valve of the solution bottles, for measuring the liquid dropped into the beakers from the solution bottles.
The other object of the present invention is to provide a high speed liquid dispensing and metering system. Three or more electronic scales may be arranged under the turntable table, capable of increasing the measuring speed of the liquid dispensing and metering system.
The other object of the present invention is to provide a liquid dispensing and metering system with a vertically movable turntable table. The turntable table is driven by a liftable supporting mechanism, so that the turntable table may be moved upwardly or downwardly to facilitate the operation of the system.
The other object of the present invention is to provide a customized liquid dispensing and metering system, including one or more turntable table modules, tubeless dispensing modules, and/or piped dispensing modules.
The present invention will be apparent to those skilled in the art by reading the following description of preferred embodiments thereof, with reference to the accompanying drawings, in which:
REFERENCES:
patent: 3878907 (1975-04-01), Morick
patent: 5115874 (1992-05-01), Hayahara et al.
patent: 5938080 (1999-08-01), Haaser et al.
Copower Technology Co., Ltd.
Maust Timothy L.
Rosenberg , Klein & Lee
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