Fluent material handling – with receiver or receiver coacting mea – With conveying means to supply successive receivers – Conveyer with additional receiver conveying or manipulating...
Reexamination Certificate
1999-07-01
2001-02-13
Douglas, Steven O. (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
With conveying means to supply successive receivers
Conveyer with additional receiver conveying or manipulating...
C141S098000, C141S313000, C141S114000
Reexamination Certificate
active
06186195
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a system for the alternative charging of at least one sack filling machine and/or of at least one truck with pourable material.
2. Description of the Related Art
Such systems already exist in the prior art. The construction of a prior art system is described with reference to FIG.
3
and FIG.
4
.
FIG. 3
is a top view and
FIG. 4
is a sectional side view of a corresponding system.
The system
10
exhibits a plurality of silos
14
, which are firmly braced by columns
12
, in order to receive pourable material. Below the silos
14
there are traversible sack filling machines
16
, which can be moved under the outlets of specified silos, in order to receive the bulk material and then to fill sacks by the conventional method. The sacks
18
, filled by the sack filling machines, are carried away by means of conveyor belts. To this end, there are two conveyor belts
20
,
22
, which run parallel over the entire length of the silos, which are arranged side by side.
Said belts run perpendicularly toward the conveyor belts
24
, receiving the sacks
20
. The conveyor belts
20
and
22
receive the sacks, filled by the sack filling machines, by means of intermediate conveyors
26
,
28
, which are arranged perpendicularly to the conveyor belts
20
and
22
and can be moved over the length of the conveyor belts
20
and
22
, and conveyed to the conveyor belts
20
and
22
. As can be inferred from
FIG. 4
, the conveyor belts
20
,
22
,
24
,
26
and
28
are arranged on a level with the discharge station of the sack filling machine. Optionally trucks may also be filled by means of the silos. To this end, the trucks
32
have their own drive-through level
30
, which is especially designed for trucks, below the level, at which the sack filling machines can be moved. The trucks
32
are filled by means of appropriate pipelines
34
, which may or may not be secured by means of moveable frames
36
, as illustrated in FIG.
4
.
The prior art system has the drawback that it is three stories high and is, therefore, very large. The top floor level exhibits the fixed silos; on the center floor level the sack filling machines can be moved; and on the bottom floor level the trucks can drive in. Moreover, the sack filling machines on the center level cannot always be moved the shortest distance to the desired silo outlet, since the corresponding conveyor belts are in the way here.
SUMMARY OF THE INVENTION
Therefore, the object of the invention is to provide a system, with which at least one sack filling machine and/or at least one truck can be charged with pourable material, yet this system is comparatively smaller and the trucks or the sack filling machines can be moved quickly by the short route to the respective desired silo outlet.
The invention solves this problem, associated with this type of system, through the use of at least one intermediate conveyor for transporting sacks from a filling system to one of several conveyor belts. According to this solution, the at least one intermediate conveyor, assigned to the at least one filling machine, is designed as a traversible elevator at least over some regions. In the working position the discharge end of the intermediate conveyor corresponds with one of the conveying belts, arranged above the required passage height necessary to move at least one sack filling machine or at least one truck. On the basis of this solution, where the entire conveyor belt has been shifted upward beyond the traversing level for the sack filling machine, it is now possible to save one whole level. Owing to the solution of the invention, it is possible for the trucks to drive under the silo outlet on the same level, on which the sack filling machines can be moved. Furthermore, it is possible to move the sack filling machines to the silo outlets via the shortest route.
According to special embodiments, every filling machine can be assigned an elevator, which is connected thereto and can be moved together with it.
The elevator can be connected in such a manner to the filling machine that its height is adjustable. Optionally the respective filling machine and its elevator can be moved separately.
Other details and advantages follow from one embodiment, depicted in the drawings.
REFERENCES:
patent: 3968626 (1976-07-01), Hobbs
patent: 1 349 252 (1974-04-01), None
Douglas Steven O.
Jacobson Price Holman & Stern PLLC
Windmoller & Holscher
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