Conveyors: fluid current – With means to control conveying fluid or movement of load in... – Control of load input or output
Reexamination Certificate
2003-11-28
2004-08-17
Dillon, Jr., Joe (Department: 3651)
Conveyors: fluid current
With means to control conveying fluid or movement of load in...
Control of load input or output
C406S119000, C406S123000, C406S151000, C406S156000, C141S083000, C141S067000, C141S105000
Reexamination Certificate
active
06776561
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an apparatus for collecting various materials with weighing and vacuum sucking functions whose weighing devices can weigh the materials before same are put together such that the materials will be mixed together according to their respective intended weights, more particularly one, which is structured in such a way as to occupy less space.
2. Brief Description of the Prior Art
Referring to
FIG. 5
, a conventional apparatus for collecting various raw materials includes a main barrel
8
for a main raw material, several small barrels
81
for non-staple materials, liquid barrels
81
a
for liquid materials, intermediate barrels
82
disposed above the barrels
8
,
81
,
81
a
, a distributor valve
84
connected with a lower outlet of the main barrel
8
through a conduit, and several blenders
85
connected with the distributor valve
84
through respective conduits. Each of the barrels
8
,
81
,
81
a
is equipped with a weighing device
811
for measuring the weight of a respective material that is fed into it. Certain ones of the small barrels
81
are positioned such that the outlets thereof oppose the upper inlet of the main barrel
8
. The barrels
8
,
81
can be equipped with either funnels
821
or dust collectors
822
that have material conveying elements. The intermediate barrels
82
are connected to respective ones of the barrels
8
,
81
through screw feeders
83
.
In operation, different materials are manually put into those of the intermediate barrels
82
that are equipped with the funnels
821
, and sucked into those of the intermediate barrels
82
that are equipped with the dust collectors
822
by means of the material conveying elements. And, the different materials are fed into respective ones of the barrels
8
,
81
by means of the screw feeders
83
while liquid material is fed into the barrel
81
a
. The operators will weigh the materials, which are fed into the barrels
8
,
81
,
81
a
, by means of the weighing devices
811
, and stop feeding the materials as soon as the materials reach respective intended weights. Thus, the different materials can be fed into the benders
85
either from the small barrels
81
or from the main barrel
8
as well as the distributor valve
84
. And, the materials can be blended by the blenders, and conveyed to other machines for the next processing step.
However, the above materials collecting apparatus is found to have disadvantages as followings:
1. The apparatus occupies much space, and is relatively high (about as high as two to three floors buildings) because the intermediate barrels
82
have to be disposed above the barrels
8
,
81
,
81
a
. Consequently, it takes much space and money to build the factory building. And, there will be a lot of dust in the air, and accidents are prone to happen in feeding materials into the intermediate barrels through the funnels manually.
2. Mistakes are prone to happen, e.g. feeding materials into wrong barrels, in case materials are manually fed into the intermediate barrels through the funnels. And, many bags, which contain materials therein, are usually stacked up around the apparatus to make the factory building untidy. In addition, there will be a lot of empty bags left after the material feeding, which take much labor to handle.
3. Conveying elements and screw feeders have to be used, which are very high at the cost, and complicated in the structure. Consequently, the manufacturing cost will be high, and the products less competitive.
SUMMARY OF THE INVENTION
It is a main object of the present invention to provide a materials-collecting apparatus to overcome the above disadvantages.
The materials-collecting apparatus of the present invention includes a frame with an upper supporting panel, weighing device sets hung on the panel, barrels hung on a respective weighing device set, dust collectors located above a respective barrel, drawing devices connected to a respective dust collector with pipes for providing vacuum sucking force, feeding conduits connected with a respective one of the barrels, a material tank having separate compartments for containing different materials therein, and control valves. Each of the control valves has a conduit. The feeding conduits are connected with first ends of respective plural ones of the control valve conduits while the control valve conduits are connected with a respective compartment at second ends. Thus, different dry materials can be conveyed from the compartments into the barrels, and collected according to respective intended weights of the materials when the apparatus is in operation; the dust collectors prevent the materials from passing out of the barrels by the sucking force.
REFERENCES:
patent: 3077365 (1963-02-01), Chester
patent: 3311418 (1967-03-01), Scruby et al.
patent: 3854778 (1974-12-01), Trythall
patent: 4459028 (1984-07-01), Bruder et al.
patent: 4628974 (1986-12-01), Meyer
patent: 4738289 (1988-04-01), von Bennigsen-Mackiewicz et al.
patent: 5971037 (1999-10-01), Ansaloni
patent: 6273153 (2001-08-01), Reinsch
patent: 6474372 (2002-11-01), Sanderson et al.
Dillon, Jr. Joe
Rosenberg , Klein & Lee
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